STMicroelectronics STM6777 Datasheet
विज्ञापन
विज्ञापन
STM6717/6718/6719/6720
STM6777/6778/6779/6780
Dual/triple ultra-low voltage supervisors with push-button reset (with delay option)
Features
■
■
■
■
■
■
■
■
■
■
Primary supply (V
CC1
) monitor.
Fixed (factory-programmed) reset thresholds:
4.63 V to 1.58 V
Secondary supply (V
CC2
) monitor
(STM6717/18/19/20/77/78)
Fixed (factory-programmed) reset thresholds:
3.08 V to 0.79 V
Tertiary supply monitor (using externally adjustable RSTIN): 0.626 V internal reference
RST outputs (push-pull or open drain); state guaranteed if V
CC1
or V
CC2
≥ 0.8 V
Reset delay time (t rec
) on power-up: 13.2 ms,
210 ms, 900 ms (typ)
Manual reset input (MR)
Optional delayed manual reset input (MRC) with external capacitor (STM6777/78/79/80)
Low supply current - 11 µA (typ),
V
CC1
= V
CC2
= 3.6 V
Operating temperature: –40 °C to 85 °C
(industrial grade)
Table 1.
Part number
STM6717
STM6718
STM6719
STM6720
STM6777
STM6778
STM6779
STM6780
SOT23-5 (WY)
SOT23-6 (WB)
✔
✔
✔
✔
✔
✔
✔
✔
Device summary
Monitored voltages
V
CC1
V
CC2
✔
✔
✔
✔
✔
✔
RSTIN
✔
✔
✔
✔
Reset output (RST)
Manual reset input (MR)
Delayed MR pin (MRC)
Active-low
(push-pull)
Active-low
(open drain)
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
Package
WY
WY
WB
WB
WB
WB
WB
WB
August 2011 Doc ID 11469 Rev 8 1/30
www.st.com
1
Contents
Contents
STM6717/6718/6719/6720/STM6777/6778/6779/6780
Active-low, push-pull reset output (RST) - STM6718/20/78/80 . . . . . . . . 7
Active-low, open drain reset output (RST) - STM6717/19/77/79 . . . . . . . 7
Push-button reset input (MR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Manual reset delay input (MRC) - STM6777/78/79/80) . . . . . . . . . . . . . . 8
Primary supply voltage monitoring input (V
CC1
) . . . . . . . . . . . . . . . . . . . 8
Secondary supply voltage monitoring input (V
) . . . . . . . . . . . . . . . . . 8
Adjustable reset comparator input (RSTIN; STM6719/20/79/80) . . . . . . 8
Typical operating characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
DC and AC parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2/30 Doc ID 11469 Rev 8
STM6717/6718/6719/6720/STM6777/6778/6779/6780
List of tables
List of tables
MLMH
minimum pulse width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Doc ID 11469 Rev 8 3/30
List of figures
List of figures
STM6717/6718/6719/6720/STM6777/6778/6779/6780
CC
= 0 (active-low, push-pull outputs). . . . . . . . . . . . . . . . . . . . . . 10
Supply current vs. temperature (V
CC1
= 5.5 V; V
Supply current vs. temperature (V
CC1
= 3.6 V; V
CC2
= 3.6 V) . . . . . . . . . . . . . . . . . . . . . . 11
CC2
= 2.75 V) . . . . . . . . . . . . . . . . . . . . . 11
Supply current vs. temperature (V
Supply current vs. temperature (V
CC1
CC1
= 3.0 V; V
= 2.0 V; V
CC2
= 2.0 V) . . . . . . . . . . . . . . . . . . . . . . 12
CC2
= 1.0 V) . . . . . . . . . . . . . . . . . . . . . . 12
reset time-out period vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
CC
transient duration vs. reset threshold overdrive . . . . . . . . . . . . . . . . . . . . . 13
threshold vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
threshold vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
-to-reset delay vs. temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
MR-to-reset output delay vs. temperature (V
CC1
= 3.6V) . . . . . . . . . . . . . . . . . . . . . . . . . . 16
SOT23-5 – 5-lead small outline transistor package mechanical drawing . . . . . . . . . . . . . . 23
SOT23-6 – 6-lead small outline transistor package mechanical drawing . . . . . . . . . . . . . . 24
4/30 Doc ID 11469 Rev 8
STM6717/6718/6719/6720/STM6777/6778/6779/6780
1 Description
Description
The STM6717/18/19/20 and STM6777/78/79/80 supervisors are a family of low-voltage/lowsupply current processor (micro or DSP) supervisors, designed to monitor two (or three) system power supply voltages. They are targeted at applications such as set-top boxes
(STBs), portable, battery-powered systems, networking, and communication systems.
All device options have a push-button-type manual reset input (MR). The
STM6777/78/79/80 also includes an option which enables the user to delay the start of the manual reset process from 6 µs (MRC pin left open) or more with external capacitor. The delay is implemented by connecting the appropriately sized capacitor between the MRC pin and V
SS
(typical 4 s delay with a 3.3 µF capacitor, see
).
Two of the three supplies monitored (V factory-trimmed) thresholds (V
RST1
CC1
and V
and V
CC2
) have fixed (customer-selectable,
RST2
). The third voltage is monitored using an externally adjustable RSTIN threshold (0.626 V internal reference).
If any of the three monitored voltages drop below its factory-trimmed or adjustable thresholds, or if MR is asserted to logic low, a RST is asserted (driven low). Once asserted,
RST is maintained at low for a minimum delay period (t rec
) after ALL supplies rise above their respective thresholds and MR returns to high. These devices are guaranteed to be in the correct reset output logic state when V
CC1
and/or V
CC2
is greater than 0.8 V.
These devices are available in standard 5-pin or 6-pin SOT23 packages (see
Doc ID 11469 Rev 8 5/30
Description STM6717/6718/6719/6720/STM6777/6778/6779/6780
Figure 1.
Logic diagram (STM6717/18)
V
CC2
V
CC1
MR
STM6717
STM6718
RST
Figure 2.
Logic diagram (STM6777/78)
V
CC2
V
CC1
MRC
MR
STM6777
STM6778
RST
V
SS
AI10413
Figure 3.
Logic diagram (STM6719/20)
V
CC2
V
CC1
V
SS
AI10415
Figure 4.
Logic diagram (STM6779/80)
V
CC
RSTIN
MR
STM6719
STM6720
RST
RSTIN
MRC
MR
STM6779
STM6780
RST
V
SS
AI10414
V
SS
AI10416
Table 2.
MR
MRC
RST
V
CC1
V
CC2
RSTIN
V
SS
Signal names
Push-button reset input
Manual reset delay input
Active-low reset output
Primary supply voltage input
Secondary supply voltage input
Adjustable reset comparator input
Ground
6/30 Doc ID 11469 Rev 8
STM6717/6718/6719/6720/STM6777/6778/6779/6780 Description
Figure 5.
STM6717/18 SOT23-5 connections Figure 6.
STM6777/78 SOT23-6 connections
RST
V
SS
MR
1
2
3
5
V
CC1
4
V
CC2
RST
V
SS
MR
1
2
3
6
5
4
V
CC1
MRC
V
CC2
AI10417 AI10418
Figure 7.
STM6719/20 SOT23-6 connections Figure 8.
STM6779/80 SOT23-6 connections
RST
V
SS
MR
1
2
3
6
5
4
V
CC1
RSTIN
V
CC2
AI10419
RST
V
SS
MR
1
2
3
6
5
4
V
CC1
RSTIN
MRC
AI10420
1.1.2
The RST pin is driven low and stays low whenever V
CC1
or V
CC2
or RSTIN falls below its factory-trimmed or adjustable reset threshold or when MR goes to logic low. It remains low for t rec
after ALL supply voltages being monitored rise above their reset thresholds and MR goes from low to high. (Push-pull outputs are referenced to V
CC1
.)
Active-low, open drain reset output (RST) - STM6717/19/77/79
The RST pin is driven low and stays low whenever V
CC1
or V
CC2
or RSTIN falls below its factory-trimmed or adjustable reset threshold or when MR goes to logic low. It remains low for t rec
after ALL supply voltages being monitored rise above their reset thresholds and MR goes from low to high. Connect an external pull-up resistor to V
CC1
. A 10 k
Ω pull-up resistor should be sufficient for most applications.
1.1.3 Push-button reset input (MR)
When MR goes low the RST output is driven low. RST remains low as long as MR is low and for t rec
after MR returns to high. This active-low input has an internal 50 k
Ω pull-up resistor to
Doc ID 11469 Rev 8 7/30
Description
1.1.4
1.1.5
1.1.6
STM6717/6718/6719/6720/STM6777/6778/6779/6780
V
CC1
. It can be driven from a TTL or CMOS logic line, or with open drain/collector outputs, or connected to V
SS
through a switch. If unused, leave this pin open or connect it to V
CC1
.
Connect a normally open momentary switch from MR to V
SS
; external debounce circuitry is not required. (If MR is driven from long cables or if the device is used in noisy environments, connecting a 0.1µF capacitor from MR to V
SS
provides additional noise immunity.
Manual reset delay input (MRC) - STM6777/78/79/80)
This pin is either left open or connected to V
SS
via a capacitor. By selecting the appropriate capacitor, the manual reset process, initiated by pressing the push-button manual reset
input, can be delayed by any value from 6 µs or more (see
).
Primary supply voltage monitoring input (V
CC1
)
It also is the input for the primary reset threshold monitor. Available fixed (customerselectable, factory-programmed) reset thresholds include 4.63 V to 1.58 V.
Secondary supply voltage monitoring input (V
CC2
)
This function is available on the STM6717/18/19/20/77/78. Fixed (customer-selectable, factory-programmed) reset thresholds include 3.08 V to 0.79 V.
This is a high impedance input. RST is driven low when the voltage at the RSTIN pin falls below 0.626 V (internal reference voltage at this comparator). The monitored voltage reset threshold is set with an external resistor-divider network.
Table 3.
Pin functions
Pin
STM6717
STM6718
STM6719
STM6720
STM6777
STM6778
STM6779
STM6780
Name
4
—
2
—
5
1
3
4
5
2
—
6
1
3
4
—
2
5
6
1
3
—
5
2
4
6
1
3
Function
RST Active-low reset output
MR Push-button reset input
MRC Manual reset delay input
V
CC1
Primary supply voltage input
V
CC2
Secondary supply voltage input
RSTIN Adjustable reset comparator input
V
SS
Ground
8/30 Doc ID 11469 Rev 8
STM6717/6718/6719/6720/STM6777/6778/6779/6780
Figure 9.
Block diagram
VCC1
VCC2
(1)
RSTIN
(2)
VRST1 COMPARE
VRST2
COMPARE
VCC1
VREF/2 = 0.626
COMPARE
Logic MR
MRC
(3)
1.
V
CC2
input is available on STM6717/18/19/20/77/78.
2.
RSTIN available only on STM6719/20/79/80.
3.
MRC available only on STM6777/78/79/80.
Figure 10.
Hardware hookup
From DC/DC Converter
VCC2(1) VCC1
VCC3 = (626.5mV)
( R1 + R2
R2
)
0.1µF
VCC1
STM67xx
VCC2
R1
VCC3
0.1µF
R2
Push-button
Switch
RSTIN
(2)
RST
MR
MRC
(3)
VSS
C trec
Generator
RST
Description
RST (To Processor Reset)
AI10421
AI10422
1.
V
CC2
is available only on STM6717/18/19/20/77/78.
2.
RSTIN available only on STM6719/20/79/80.
3.
MRC available only on STM6777/78/79/80.
Doc ID 11469 Rev 8 9/30
Operation
2 Operation
STM6717/6718/6719/6720/STM6777/6778/6779/6780
10/30
1.
Interfacing to processors with bi-directional reset pins
Most processors with bi-directional reset pins can interface directly to the open drain
RST outputs (STM6717/19/77/79). Systems simultaneously requiring a push-pull RST output and a bi-directional reset interface can be in logic contention. To prevent this contention, connect a 4.7 k
Ω resistor between RST and the processor’s reset I/O as shown in
.
2. Ensuring a valid RST output down to V
CC
= 0 V
The STM67xx supervisors are guaranteed to be in the correct RST output logic state when V
CC1
and/or V
CC2
is greater than 0.8 V. In applications which require valid reset levels down to V
CC
= 0, a pull-down resistor to active-low outputs (push-pull only, see
) will ensure that the reset line is valid while the reset output can no longer sink or source current. This scheme does NOT work with the open drain outputs of the
STM6717/19/77/79.
The resistor value used is not critical, but it must be large enough not to load the reset output when V
CC
is above the reset threshold. For most applications, 100 k
Ω is adequate.
Figure 11.
STM67xx interface to processor with bi-directional reset pins
VCC2
VCC1
STM67xx Processor
VCC1
VCC2
To other system components
VSS
RST
4.7k
Ω
RESET
VSS
AI10425
Figure 12.
Ensuring RST valid to V
CC
= 0 (active-low, push-pull outputs)
STM67xx
VCC1
VCC1
RST
VSS
R1
AI10426
Doc ID 11469 Rev 8
STM6717/6718/6719/6720/STM6777/6778/6779/6780
3 Typical operating characteristics
Typical operating characteristics
Note: Typical values are at T
A
= 25 °C unless otherwise noted.
Figure 13.
Supply current vs. temperature (V
CC1
= 5.5 V; V
CC2
= 3.6 V)
18
10
8
6
4
16
14
12
2
0
–40
ITOTAL
–20
ICC1
ICC2
0 20
Temperature (
°C)
40 60 80
Figure 14.
Supply current vs. temperature (V
CC1
= 3.6 V; V
CC2
= 2.75 V)
AI11843
18
16
14
12
10
8
6
4
2
0
–40
ITOTAL
–20
ICC1
ICC2
0 20
Temperature (
°C)
40 60 80
AI11844
Doc ID 11469 Rev 8 11/30
Typical operating characteristics STM6717/6718/6719/6720/STM6777/6778/6779/6780
Figure 15.
Supply current vs. temperature (V
CC1
= 3.0 V; V
CC2
= 2.0 V)
18
16
14
12
10
8
6
4
2
0
–40
ITOTAL
–20
ICC1
ICC2
0 20
Temperature (
°C)
40 60 80
AI11845
Figure 16.
Supply current vs. temperature (V
CC1
= 2.0 V; V
CC2
= 1.0 V)
8
6
4
2
0
–40
18
16
14
12
10
ITOTAL
–20
ICC1
ICC2
0 20
Temperature (
°C)
40 60 80
AI11846
12/30 Doc ID 11469 Rev 8
STM6717/6718/6719/6720/STM6777/6778/6779/6780 Typical operating characteristics
Figure 17.
Normalized V
CC
reset time-out period vs. temperature
1.07
1.05
1.03
1.01
0.99
0.97
–40 –20 0 20
Temperature (
°C)
40 60 80
Figure 18.
Maximum V
CC
transient duration vs. reset threshold overdrive
1000
AI11847
100
10
1
1 10 100
Reset threshold overdrive (mV)
1000
AI11848
Doc ID 11469 Rev 8 13/30
Typical operating characteristics STM6717/6718/6719/6720/STM6777/6778/6779/6780
Figure 19.
Normalized V
RST1
threshold vs. temperature
1.004
1.002
1.000
0.998
0.996
–40 –20 0 20 40
Temperature (
°C)
Figure 20.
Normalized V
RST2
threshold vs. temperature
1.004
60 80
1.002
AI11849
1.000
0.998
0.996
–40 –20 0 20
Temperature (
°C)
40 60 80
AI11850
14/30 Doc ID 11469 Rev 8
STM6717/6718/6719/6720/STM6777/6778/6779/6780
Figure 21.
Reset input threshold vs. temperature
630
629
628
627
626
625
624
–40 –20 0 20
Temperature (
°C)
40
Typical operating characteristics
60 80
AI11851
Figure 22.
V
CC1
-to-reset delay vs. temperature
48
44
40
36
32
28
–40 –20 0 20
Temperature (
°C)
40 60 80
AI11852
Doc ID 11469 Rev 8 15/30
Typical operating characteristics STM6717/6718/6719/6720/STM6777/6778/6779/6780
Figure 23.
Reset input-to-reset output delay vs. temperature
29.0
28.5
28.0
27.5
27.0
26.5
26.0
25.5
25.0
–40 –20 0 20
Temperature (
°C)
40 60 80
Figure 24.
MR-to-reset output delay vs. temperature (V
CC1
= 3.6V)
500
AI11853
480
460
440
420
400
–40 –20 0 20
Temperature (
°C)
40 60 80
AI11854
16/30 Doc ID 11469 Rev 8
STM6717/6718/6719/6720/STM6777/6778/6779/6780 Maximum rating
Stressing the device above the rating listed in the Absolute Maximum Ratings” table may cause permanent damage to the device. These are stress ratings only and operation of the device at these or any other conditions above those indicated in the Operating sections of this specification is not implied. Exposure to Absolute Maximum Rating conditions for extended periods may affect device reliability. Refer also to the STMicroelectronics SURE
Program and other relevant quality documents.
Table 4.
Symbol
Absolute maximum ratings
Parameter Value
V
T
T
I
STG
SLD
(1)
V
P
IO
CC1,
IO
V
D
CC2
Storage temperature (V
Lead solder temperature for 10 seconds
Input or output voltage
Supply voltage
CC
off)
Input or output current (all pins)
Power dissipation
SOT23-5
SOT23-6
–55 to 150
260
–0.3 to V
CC1
+ 0.3
–0.3 to V
CC2
+ 0.3
–0.3 to 7.0
20
654
675
1.
Reflow at peak temperature of 260 °C. The time above 255 °C must not exceed 30 seconds.
Unit
V mA mW mW
°C
°C
V
V
Doc ID 11469 Rev 8 17/30
DC and AC parameters
5
STM6717/6718/6719/6720/STM6777/6778/6779/6780
DC and AC parameters
18/30
This section summarizes the operating measurement conditions, and the DC and AC characteristics of the device. The parameters in the DC and AC characteristics tables that follow, are derived from tests performed under the measurement conditions summarized in
Table 5: Operating and AC measurement conditions
. Designers should check that the operating conditions in their circuit match the operating conditions when relying on the quoted parameters.
Table 5.
Operating and AC measurement conditions
Parameter STM67xx
V
CC
supply voltage
Ambient operating temperature (T
A
)
Input rise and fall times
Input pulse voltages
Input and output timing ref. voltages
0.8 to 5.5
–40 to 85
≤ 5
0.2 to 0.8V
CC
0.3 to 0.7V
CC
Unit
V
°C ns
V
V
Figure 25.
AC testing input/output waveforms
0.8VCC
0.7VCC
0.3VCC
0.2VCC
AI02568
Figure 26.
MR timing waveform (STM6717/18/19/20)
t
MLMH
MR t
MLRL
RST t rec
AI10423a
Figure 27.
MR timing waveform (STM6777/78/79/80)
t
MLMH
(1)
MR t
MLRL
RST trec
AI10424c
1.
By connecting a certain capacitor between the MRC pin and V
SS more (t
MLMH
, see
).
, the RST can be delayed from 6 µs or
Doc ID 11469 Rev 8
STM6717/6718/6719/6720/STM6777/6778/6779/6780 DC and AC parameters
Table 6.
Sym
DC and AC characteristics
Alternative
Description
V
CC
I
CC1
I
CC2
I
LI
(2)
I
LO
V
OL
V
OH t
R
(3)
Test condition
(1)
Min
V
V
Operating voltage
CC1
CC2
supply current
supply current
Input leakage current
Open drain RST output leakage current
Output low voltage (RST; push-pull or open drain)
Output high voltage (RST; push-pull only)
Push-pull RST rise time
(STM6718/20/78/80)
0.8
V
CC1
< 5.5 V, all I/O pins open
V
CC1
< 3.6 V, all I/O pins open
V
CC2
< 3.6 V, all I/O pins open
V
CC2
< 2.75 V, all I/O pins open
0 V = V
IN
= V
CC
V
CC1
> V
RST1
, V
CC2
> V
RST2
;
RST not asserted
–1
V
CC1
or V
CC2
≥ 0.8 V,
I
SINK
= 1 µA, RST asserted
V
CC1
or V
CC2
≥ 1.0 V,
I
SINK
= 50 µA, RST asserted
V
CC1
or V
CC2
≥ 1.2 V,
I
SINK
= 100 µA, RST asserted
V
CC1
or V
CC2
≥ 2.7 V,
I
SINK
= 1.2 mA, RST asserted
V
CC1
or V
CC2
≥ 4.5 V,
I
SINK
= 3.2 mA, RST asserted
V
CC1
≥ 1.8 V, I
SOURCE
= 200 µA,
RST not asserted
V
CC1
≥ 2.7 V, I
SOURCE
= 500 µA,
RST not asserted
0.8V
CC1
0.8V
CC1
V
CC1
≥ 4.5 V, I
SOURCE
= 800 µA,
RST not asserted
0.8V
CC1
Rise time measured from 10% to
90% of V
CC
;
C
L
= 5 pF, V
CC
= 3.3 V
Reset thresholds
Typ Max Unit
12
8
3
2.5
5
5.5
35
23
9
7
+1
0.5
0.3
0.3
0.3
0.3
0.4
25
µA
V
V
V
V
V
V
V
V ns
V
µA
µA
µA
µA
µA
V
RST
(4)
V
TH1
V
CC1
reset threshold
L (falling)
M (falling)
T (falling)
S (falling)
R (falling)
Z (falling)
Y (falling)
W (falling)
V (falling)
4.500
4.625
4.750
4.250
4.375
4.500
3.000
3.075
3.150
2.850
2.925
3.000
2.550
2.625
2.700
2.250
2.313
2.375
2.125
2.188
2.250
1.620
1.665
1.710
1.530
1.575
1.620
V
V
V
V
V
V
V
V
V
Doc ID 11469 Rev 8 19/30
DC and AC parameters STM6717/6718/6719/6720/STM6777/6778/6779/6780
Table 6.
Sym
DC and AC characteristics (continued)
Alternative
Description Test condition
(1)
V
RST2
(4)
V t t
HYST
RD rec
V t
TH2
RP
V
CC2
Reset threshold hysteresis
V
CC
reset threshold
to RST delay
RST pulse width
T (falling)
S (falling)
R (falling)
Z (falling)
Y (falling)
W (falling)
V (falling)
I (falling)
H (falling)
G (falling)
F (falling)
K (falling)
J (falling)
E (falling)
D (falling)
Referenced to V
RST
typical
V
CC1
= (V
RST1
+ 100 mV) to
(V
RST
– 100 mV)
V
CC2
= (V
RST2
+ 75 mV) to
(V
RST2
– 75 mV) blank
B
G
Adjustable reset comparator input (STM6719/20/79/80)
t
V
RSTIN
I
RSTIN
RSTIND
RSTIN input threshold
RSTIN input current
RSTIN hysteresis
RSTIN to RST output delay
V
RSTIN
to (V
RSTIN
– 30 mV)
Min Typ Max Unit
3.000
3.075
3.150
2.850
2.925
3.000
2.550
2.625
2.700
2.250
2.313
2.375
2.125
2.188
2.250
1.620
1.665
1.710
1.530
1.575
1.620
1.350
1.388
1.425
1.275
1.313
1.350
1.080
1.110
1.140
1.020
1.050
1.080
0.895
0.925
0.955
0.845
0.875
0.905
0.810
0.833
0.855
0.765
0.788
0.810
0.5
20 µs
V
V
V
V
%
V
V
V
V
V
V
V
V
V
V
V
140
8.8
600
20
210 280
13.2
17.6
900 1200
µs ms
611
–25
626.5
642
+25
3
22 mV nA mV
µs
20/30 Doc ID 11469 Rev 8
STM6717/6718/6719/6720/STM6777/6778/6779/6780 DC and AC parameters
Table 6.
Sym
DC and AC characteristics (continued)
Alternative
Description Test condition
(1)
Min Typ Max Unit
Manual (push-button) reset input
V
IL
0.3V
C
C1
V
MR input voltage
V
IH
0.7V
CC1
V t
MLMH t
MR
MR minimum pulse width
(STM6717/18/19/20)
MR minimum pulse width
(STM6777/78/79/80)
MRC connected via capacitor to V
SS
1
6 t
MLRL t
MRD
MR to RST output delay
MR glitch immunity
(STM6717/18/19/20)
MR pull-up resistance
200
100
25 50 80
1.
Valid for ambient operating temperature: T
A noted).
= –40 to 85 °C; V
CC1
= 0.8 to 5.5 V and V
CC2
= 0.8 to 3.6 V (except where
2.
Input leakage for the MRC pin is not tested.
3.
Guaranteed by design.
4.
The leakage current measured on the RST pin is tested with the reset de-asserted (output high impedance).
µs
µs ns ns k
Ω
Table 7.
t
MLMH
minimum pulse width
V
CC1
1.6 V
2.0 V
3.0 V
4.0 V
5.0 V
1.
At 25 °C (typical)
100 pF
120 µs
122 µs
125 µs
128 µs
130 µs
0.1 µF
120 ms
122 ms
125 ms
129 ms
130 ms
Capacitor value
(1)
2.2 µF
2.6 s
2.7 s
2.7 s
2.8 s
2.8 s
3.3 µF
4.0 s
4.0 s
4.1 s
4.2 s
4.3 s
4.7 µF
5.6 s
5.8 s
5.9 s
6.0 s
6.1 s
6.8 µF
8.2 s
8.3 s
8.5 s
8.7 s
8.8 s
Doc ID 11469 Rev 8 21/30
Package mechanical data
6
STM6717/6718/6719/6720/STM6777/6778/6779/6780
Package mechanical data
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK
®
packages, depending on their level of environmental compliance. ECOPACK
® specifications, grade definitions and product status are available at:
www.st.com
.
ECOPACK
®
is an ST trademark.
22/30 Doc ID 11469 Rev 8
STM6717/6718/6719/6720/STM6777/6778/6779/6780
Note:
Package mechanical data
Figure 28.
SOT23-5 – 5-lead small outline transistor package mechanical drawing
E
A1 e
1 e1 D
5x b
0.20
M
C A B
Datum A
0.20
A
θ
C
C 0.10
5x
C
A
A2
B
L
E1
0133778
E
E1 e e1
L
Q
N b
C
D
A
A1
A2
Drawing is not to scale.
Table 8.
SOT23-5 – 5-lead small outline transistor package mechanical data mm inches
Symb
Min
—
—
0.90
0.30
0.08
—
—
—
—
—
0.30
0°
Typ
2.80
1.60
0.95
1.90
0.45
4°
5
—
—
1.15
—
—
2.90
Max
1.45
0.15
1.30
0.50
0.22
—
—
—
—
—
0.60
8°
Min
—
—
0.035
0.012
0.003
—
—
—
—
—
0.012
0°
Typ
0.110
0.063
0.037
0.075
0.018
4°
5
—
—
0.045
—
—
0.114
Max
0.057
0.006
0.051
0.020
0.009
—
—
—
—
—
0.024
8°
Note: Dimensions per JEDEC SOT/SOP product outline MO-178C, variation AA
Doc ID 11469 Rev 8 23/30
Package mechanical data STM6717/6718/6719/6720/STM6777/6778/6779/6780
Figure 29.
SOT23-6 – 6-lead small outline transistor package mechanical drawing
E
A1
1 e1 e
D
Note:
Note:
6x b
0.10
M
C A B
A
C 0.10
6x
C
A
A2
Datum A
0.20
θ
C
B
L
E1
C
D
E
E1
A
A1
A2 b e e1
L
Q
N
Drawing is not to scale.
Table 9.
SOT23-6 – 6-lead small outline transistor package mechanical data mm inches
Symb
Min
0.08
—
—
—
—
—
0.90
0.30
—
—
0.30
0°
Typ
—
2.90
2.80
1.60
—
—
1.15
—
0.95
1.90
0.45
4°
6
Max
—
—
0.60
8°
0.22
—
—
—
1.45
0.15
1.30
0.50
Min
—
—
0.035
0.012
0.003
—
—
—
—
—
0.012
0°
Typ
—
—
0.045
—
—
0.114
0.110
0.063
0.037
0.075
0.018
4°
6
Max
0.057
0.006
0.051
0.020
0.009
—
—
—
—
—
0.024
8°
Dimensions per JEDEC SOT/SOP product outline MO-178C variation AB
7049714
24/30 Doc ID 11469 Rev 8
STM6717/6718/6719/6720/STM6777/6778/6779/6780
Figure 30.
Carrier tape for SOT23-5L and SOT23-6L
D
P2
P0
T
A0
TOP COVER
TAPE
B0
Package mechanical data
E
F
W
Note:
CENTER LINES
OF CAVITY
P1
K0
USER DIRECTION OF FEED
AM03073v1
Part pin 1 indicator is on bottom left for shipping method “F” and is on top right for shipping
Table 10.
Carrier tape dimensions for SOT23-5L and SOT23-6L
Package W D E P
0
P
2
F A
0
B
0
K
0
P
1
T Unit
Bulk
Qty
SOT23-5
SOT23-6
8.00
+0.30/
–0.10
1.50
+0.10/
–0.00
1.75
±0.10
4.00
±0.10
2.00
±0.10
3.50
±0.05
3.23
±0.10
3.17
±0.10
1.37
±0.10
4.00
±0.10
0.254
±0.013
mm 3000
Doc ID 11469 Rev 8 25/30
Part numbering STM6717/6718/6719/6720/STM6777/6778/6779/6780
Table 11.
Ordering information scheme
Example: STM67xx
Device type
STM67xx
Reset thresholds (V
RST1
and V
RST2
) for V
CC1
and V
CC2
STM6717/18/19/20/77/78 (V
RST1
and V
RST2
) STM6779/80 (V
RST1
only)
Suffix
LT
MS
MR
TZ
(1)
TW
(1)
TI
TG
(1)
V
RST1
4.625
4.375
4.375
3.075
3.075
3.075
3.075
V
RST2
3.075
2.925
2.625
2.313
1.665
1.388
1.110
Suffix V
L–
(1)
T–
(1)
S–
(1)
Y–
(1)
V–
(1)
R–
Z–
RST1
4.625
3.075
2.925
2.188
1.575
2.625
2.313
TK
TE
SY
(1)
SV
(1)
SH
(2)
SF
(1)
SJ
(3)
SD
(3)
YV
YH
YF
3.075
3.075
2.925
2.925
2.925
2.925
2.925
2.925
2.188
2.188
2.188
0.925
0.833
2.188
1.575
1.313
1.050
0.875
0.788
1.575
1.313
1.050
YJ
YD
VH
VF
VJ
VD
Reset pulse width
2.188
2.188
1.575
1.575
1.575
1.575
0.875
0.788
1.313
1.050
0.875
0.788
blank: t rec
= 140 ms to 280 ms
B: t rec
= 8.8 ms to 17.6 ms
G: t rec
= 600 ms to 1200 ms
Package
WY = SOT23-5
WB = SOT23-6
Temperature range
6 = –40 to 85°C
Shipping method
E = ECOPACK
®
package, tubes
F = ECOPACK
®
package, tape and reel
R
(4)
= ECOPACK
®
package, tape and reel (pin 1 at top right).
LT WY 6 F
1.
These are standard versions and are typically held in stock. A non-standard version may require a higher minimum volumes, and/or longer delivery times. For other options, or for more information on any aspect of this device, please contact the ST sales office nearest you.
2.
Available in STM6719 version only.
3.
Available in STM6717 version only.
4.
Available for STM6720SY, STM6719SF and STM6719SFB versions only.
26/30 Doc ID 11469 Rev 8
STM6717/6718/6719/6720/STM6777/6778/6779/6780 Part numbering
Table 12.
Marking description
Part number
STM6717SD
V
RST1
threshold (V) V
RST2
threshold (V)
2.925
0.788
STM6719TG
STM6719SH
STM6719TW
STM6719SV
STM6719SY
STM6719TZ
STM6720SF
STM6720TG
STM6720TW
STM6720SV
STM6720SY
STM6720TZ
STM6717SJ
STM6717SF
STM6717TG
STM6717TGG
STM6717TW
STM6717SV
STM6717SY
STM6717TZ
STM6718SF
STM6718TG
STM6718TW
STM6718SV
STM6718SY
STM6718TZ
STM6719SF
STM6719SFB
STM6777SF
STM6777TG
STM6777TW
STM6777SV
STM6777SY
STM6777TZ
2.925
3.075
3.075
2.925
2.925
3.075
3.075
2.925
3.075
2.925
2.925
3.075
2.925
3.075
3.075
2.925
2.925
3.075
2.925
3.075
3.075
2.925
2.925
3.075
2.925
2.925
2.925
2.925
3.075
3.075
3.075
2.925
2.925
3.075
1.050
1.110
1.665
1.575
2.188
2.313
1.110
1.313
1.665
1.575
2.188
2.313
1.050
1.110
1.665
1.575
2.188
2.313
1.050
1.110
1.665
1.575
2.188
2.313
1.050
1.050
0.875
1.050
1.110
1.110
1.665
1.575
2.188
2.313
Topside marking Bottomside marking
7SF4
7TG4
7TW4
7SV4
7SY4
7TZ4
7TG3
7SH3
7TW3
7SV3
7SY3
7TZ3
7SF5
7TG5
7TW5
7SV5
7SY5
7TZ5
7SY1
7TZ1
7SF2
7TG2
7TW2
7SV2
7SY2
7TZ2
7SF3
7SFB
7SD1
7SJ1
7SF1
7TG1
7TG9
7TW1
7SV1
PYWW
PYWW
PYWW
PYWW
PYWW
PYWW
PYWW
PYWW
PYWW
PYWW
PYWW
PYWW
PYWW
PYWW
PYWW
PYWW
PYWW
PYWW
PYWW
PYWW
PYWW
PYWW
PYWW
PYWW
PYWW
PYWW
PYWW
PYWW
PYWW
PYWW
PYWW
PYWW
PYWW
PYWW
PYWW
Doc ID 11469 Rev 8 27/30
Part numbering STM6717/6718/6719/6720/STM6777/6778/6779/6780
Table 12.
Marking description (continued)
Part number
STM6778SF
V
RST1
threshold (V) V
RST2
threshold (V)
2.925
1.050
STM6778TG
STM6778TW
STM6778SV
STM6778SY
STM6778TZ
STM6779L
STM6779T
STM6779S
STM6779Y
STM6779V
STM6780L
STM6780T
STM6780S
STM6780Y
STM6780V
2.188
1.575
4.625
3.075
2.925
2.188
1.575
3.075
3.075
2.925
2.925
3.075
4.625
3.075
2.925
—
—
—
—
—
—
—
1.110
1.665
1.575
2.188
2.313
—
—
—
Topside marking Bottomside marking
7Tx7
7Sx7
7Yx7
7Vx7
7Lx8
7Tx8
7Sx8
7Yx8
7Vx8
7SF6
7TG6
7TW6
7SV6
7SY6
7TZ6
7Lx7
PYWW
PYWW
PYWW
PYWW
PYWW
PYWW
PYWW
PYWW
PYWW
PYWW
PYWW
PYWW
PYWW
PYWW
PYWW
PYWW
Note: For topside marking, “7” is the family number, followed by the V
RST1
threshold, V
RST2 threshold and device number (1,9 = STM6717, 2 = 6718, 3 = 6719, 4 = 6720, 5 = 6777,
6 = 6778, 7 = 6779, 8 = 6780).
For bottomside marking, “P” = assembly site, “Y” = 1-digit year, and “WW” = 2-digit work week.
28/30 Doc ID 11469 Rev 8
STM6717/6718/6719/6720/STM6777/6778/6779/6780 Revision history
Table 13.
Document revision history
Date Revision
18-Oct-2004
25-Oct-2004
14-Jan-2005
09-Feb-2005
08-Apr-2005
28-Jul-2005
13-Sep-2005
07-Oct-2005
07-Feb-2007
12-Jun-2007
05-Dec-2007
22-Mar-2010
02-Aug-2011
3
4
5
6
1
1.1
1.2
1.3
1.4
1.5
2
7
8
Changes
First draft
Descriptive text, sales types (
)
Update characteristics, pin functions (
Update characteristics (
;
Update characteristics and mechanical dimensions; add table
,
,
,
,
Update characteristics, reset delay (
,
,
,
Add operating characteristics; update timings, document status, Lead-
,
,
,
,
,
,
;
)
Marked STM6779/6780 as availability request parts (
,
Updated STM6779/6780 availability (cover page,
)
Updated
, added
.
,
.
Updated
;
,
,
of
Section 6: Package mechanical data
; added tape and reel
,
, footnote
of
); reformatted document.
Removed footnote from
Table 6: DC and AC characteristics
Doc ID 11469 Rev 8 29/30
STM6717/6718/6719/6720/STM6777/6778/6779/6780
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30/30 Doc ID 11469 Rev 8
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