1-bit dual supply bus transceiver level translator with A

ST1G3236
1-bit dual supply bus transceiver level translator
with A-side series resistor
Features
■
High speed: tPD = 4.0ns (Max.) at TA = 85°C
■
Low power dissipation:
ICCA = ICCB = 5μA(Max.) at TA = 85°C
■
Balanced propagation delays:
tPLH ≅ tPHL
■
Power-down protection on inputs and outputs
■
26Ω series resistor on A-side outputs
■
Operating voltage range:
– VCCA(Opr) = 1.2V to 3.6V
– VCCB(Opr) = 1.2V to VCCA
DFN6L
Description
■
Latch-up performance exceeds 100mA per
JESD 78, Class II
■
ESD performance exceeds JESD22
– 2000-V Human-body model (A114-A)
The ST1G3236 is a dual supply low voltage
CMOS 1-bit bus Transceiver fabricated with submicron silicon gate and five-layer metal wiring
C2MOS technology. Designed for use as an
interface between a 3.3V bus and a 2.5V or 1.2V
bus in mixed supply systems of 3.3V/1.2V,
3.3V/2.5V and 2.5V/1.8V, the ST1G3236 achieves
high speed operation while maintaining low power
dissipation. VCCA and VCCB can be powered from
1.2V to 3.6V respectively. The DIR pin is designed
to track VCCB.
The device is intended for two-way asynchronous
communication between data buses and the
direction of data transmission is determined by
DIR inputs.
All inputs are equipped with protection circuits
against static discharge, giving them 2kV ESD
immunity and transient excess voltage.
Table 1.
July 2007
Device summary
Order code
Package
Packaging
ST1G3236DTR
DFN6L (1.2x1mm)
Tape and Reel
Rev 1
1/19
www.st.com
19
Contents
ST1G3236
Contents
1
Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1
Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2
Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3
Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1
Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5
Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
6
Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
7
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
8
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2/19
ST1G3236
Device summary
1
Device summary
1.1
Pin settings
Figure 1.
Logic diagram
GND
DIR
A1
B1
VCCB
VCCA
CS000101
Figure 2.
Pin connection (top through view)
V
CCA
1
6
V
GND
2
5
DIR
A1
3
4
B1
CCB
DFN6L
1.2
Pin description
Table 1.
Pin description
Pin N°
Symbol
Name and function
1
VCCA
Positive supply voltage
2
GND
Ground (0V)
3
A1
Data Inputs/Outputs
4
B1
Data Inputs/Outputs
5
DIR
Directional controls
6
VCCB
Positive supply voltage
3/19
Pin connection
2
ST1G3236
Pin connection
Figure 3.
Input and output equivalent circuit
VCCB / VCCA
Overvolt.
control
Bn/An
An/Bn
Control Inputs
R S = (0Ω / 26Ω)
ESD
protection
ESD
protection
GND
GND
GND
GND
GND
GND
CS157401
Table 2.
Truth table
Function
Dir input
4/19
Bus A
Bus B
L
Output
Input
H
Input
Output
ST1G3236
3
Maximum rating
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 3.
Absolute maximum ratings
Symbol
Value
Unit
-0.5 to 4.6
V
VCCA
Output supply voltage
VCCB
Input supply voltage
-0.5 to + 4.6
V
DC input voltage
-0.5 to +4.6
V
VI
VI/OA
DC output voltage
-0.5 to VCCA + 0.5
V
VI/OB
DC output voltage
-0.5 to VCCB + 0.5
V
IIK
DC input diode current
−20
mA
IOK
DC output diode current
−50
mA
IOA
DC output current
± 50
mA
IOB
DC output current
± 50
mA
ICCA
DC VCCA or ground current
± 100
mA
ICCB
DC VCCB or ground current
± 100
mA
200
mW
-65 to +150
°C
260
°C
Pd
Power dissipation
Tstg
Storage temperature
TL
3.1
Parameter
Lead temperature (10 sec)
Recommended operating conditions
Table 4.
Recommended operating conditions
Symbol
Parameter
Value
Unit
VCCA
Supply voltage
1.2 to 3.6
V
VCCB(1)
Supply voltage
1.2 to VCCA
V
5/19
Maximum rating
Table 4.
ST1G3236
Recommended operating conditions
Symbol
Value
Unit
Input voltage (DIR)
0 to VCCB
V
VI/OA
I/O voltage
0 to VCCA
V
VI/OB
I/O voltage
0 to VCCB
V
Operating temperature
-40 to 85
°C
VCCB = 3.0 to 3.6V
0 to 10
ns/V
VCCB = 2.3 to 2.7V
0 to 20
ns/V
VCCB = 1.2 to 1.95V
0 to 100
ns/V
VI
Top
dt/dv(2)
Parameter
Input Rise and Fall Time
1. VCCB must be lower than VCCA
2.
6/19
VIN from 0.8V to 2.0V at VCC = 3.0V
ST1G3236
4
Electrical characteristics
Electrical characteristics
Table 5.
DC specification for VCCA
Test condition
Symbol
VIHA
VILA
Parameter
High level
input voltage
(A1)
Low level
input voltage
(A1)
VCCB
(V)
1.2 to
VCCA
1.2 to
VCCA
Value
TA = 25 °C
VCCA
(V)
Min
Max
VOHA
1.2 to
VCCA
0.65
VCCA
0.65
VCCA
1.95
to 2.7
1.6
1.6
2.7 to
3.6
2
2
VOLA
IIA
Input
leakage
current
Unit
Max
V
1.2 to
1.95
0.35VCCA
0.35
VCCA
1.95
to 2.7
0.7
0.8
2.7 to
3.6
0.8
0.8
V
VCCA0.2
3.0
IO=-10mA
2.5
2.5
2.3
IO=-6mA
1.8
1.8
1.65
IO=-4mA
1.25
1.25
1.4
IO=-2mA
1.1
1.1
1.2
IO=-1mA
0.95
0.95
1.2 to
I =-100μA
3.6V O
Low level
output
voltage
Min
1.2 to
1.95
1.2 to
I =-100μA VCCA- 0.2
3.6V O
High level
output
voltage
-40 to 85 °C
V
0.2
0.2
3.0
IO=-10mA
0.55
0.55
2.3
IO=-6mA
0.40
0.40
1.65
IO=-4mA
0.40
0.40
1.4
IO=-2mA
0.30
0.30
1.2
IO=-1mA
0.25
0.25
2.7
3.3
VI =VCCA
or GND
± 0.5
±5
μA
1.4
2.7
VIA =3.6V
or GND
± 0.5
±5
μA
1.2 to
VCCA
V
7/19
Electrical characteristics
Table 5.
ST1G3236
DC specification for VCCA (continued)
Test condition
Symbol
IOFF
ICCtA
ΔICCtA
Table 6.
Parameter
VCCB
(V)
Power OFF
leakage
current
Quiescent
supply
current
0
1.2V
1.2 to
3.6V
1.2 to
3.6V
3.6
Maximum
quiescent
supply
current/input
TA = 25 °C
VCCA
(V)
0
Value
Min
Max
± 10
μA
VIA=VCCA
or GND
VIB=VCCB
or GND
DIR =A to
B
0.5
5
μA
0.75
μA
3.3V VIA =VCCA
to 0.6V
3.3
VIB =VCCB
2.7
or GND
2.7V
1.8
1.8
DC specification for VCCB
Parameter
VCCB
(V)
VCCA
(V)
High level
input voltage
(A1)
1.8
2.5
VCCB
to
3.6V
3.3
1.2
VILB
Low level input
voltage
(B1, DIR)
1.8
2.5
3.3
8/19
Max
± 1.0
1.2
VIHB
Min
Unit
VIA=GND
to 3.6V
VIB=GND
to 3.6V
DIR=GND
to 3.6V
Test condition
Symbol
-40 to 85 °C
VCCB
to
3.6V
Value
TA = 25 °C
Min
Max
-40 to 85 °C
Min
0.65
VCCB
0.65
VCCB
1.2
1.2
1.6
1.6
2
2
Unit
Max
V
0.35
VCCB
0.35
VCCB
0.6
0.6
0.7
0.7
1.0
1.0
V
ST1G3236
Electrical characteristics
Table 6.
DC specification for VCCB (continued)
Test condition
Symbol
Parameter
VCCB
(V)
(V)
IO=100μA
IIB
ICCtB
ΔICCtB
Low level
output voltage
Maximum
quiescent
supply
current/input
(B1, DIR)
Min
VCCB0.2
VCCB
-0.2
2.5
2.5
1.65
1.25
1.25
1.4
IO=-2mA
1.1
1.1
1.2
IO=-1mA
0.95
0.95
1.2 to
3.6V
IO=100μA
0.2
0.2
0.55
0.55
0.40
0.40
0.40
0.40
1.65
IO=10mA
VCCB
to
IO=-6mA
3.6V
IO=-4mA
1.4
IO=-2mA
0.30
0.30
1.2
IO=-1mA
0.25
0.25
2.3
Unit
Max
1.8
V
V
2.7
3.3
VIB
=VCC or
GND
± 0.5
±5
μA
1.4
2.7
VIB
=3.6V or
GND
± 0.5
±5
μA
0.5
5
μA
0.75
μA
Input leakage
current
Quiescent
supply current
Max
1.8
2.3
3.0
VOLB
Min
-40 to 85 °C
IO=10mA
VCCB
to
IO=-6mA
3.6V
IO=-4mA
3.0
High level
output voltage
TA = 25 °C
VCCA
1.2 to
3.6V
VOHB
Value
1.2 to
VCCA
VIA=VCC
A or
GND
1.2 to VIB=VCC
3.6
B or
GND
DIR =B
to A
2.7
3.3
1.8
3.3
1.8
2.7
VIB
=VCCB
to 0.6V
VIA
=VCCB
or GND
-
-
-
-
-
-
-
-
-
9/19
Electrical characteristics
Table 7.
ST1G3236
AC electrical characteristics
Test condition
Symbol
tPLH
tPHL
tPLH
tPHL
Parameter
Propagation delay
time An to Bn
Propagation delay
time Bn to An
Output enable time
tPZL tPZH
DIR to An
Output enable time
tPZL tPZH
DIR to Bn
Table 8.
VCCB
(V)
VCCA
(V)
1.8 ± 0.15
2.5 ± 0.2
1.8 ± 0.15
3.3 ± 0.3
2.5 ± 0.2
3.3 ± 0.3
1.8 ± 0.15
2.5 ± 0.2
1.8 ± 0.15
3.3 ± 0.3
2.5 ± 0.2
3.3 ± 0.3
1.8 ± 0.15
2.5 ± 0.2
1.8 ± 0.15
3.3 ± 0.3
2.5 ± 0.2
3.3 ± 0.3
1.8 ± 0.15
2.5 ± 0.2
1.8 ± 0.15
3.3 ± 0.3
2.5 ± 0.2
3.3 ± 0.3
1.8 ± 0.15
2.5 ± 0.2
1.8 ± 0.15
3.3 ± 0.3
2.5 ± 0.2
3.3 ± 0.3
1.8 ± 0.15
2.5 ± 0.2
1.8 ± 0.15
3.3 ± 0.3
2.5 ± 0.2
3.3 ± 0.3
Value
Min
CL = 30 pF
RL = 500Ω
CL = 10 pF
CL = 30 pF
RL = 500 Ω
10/19
1
Max
1.0
4
1.0
3.5
1.0
2.8
1.0
3.8
1.0
3.4
1.0
2.7
1.0
4.5
1.0
4
1.0
3
1.0
4.5
1.0
4
1.0
3
ns
CL = 10 pF
6
CL = 30 pF
RL = 500Ω
6
ns
6
6
CL = 30 pF
RL = 500Ω
6
ns
6
Capacitance characteristics
Parameter
Value
TA = 25 °C
VCCB VCCA
(V)
(V)
Min
Note:
Typ
ns
Test condition
Symbol
Unit
-40 to 85 °C
CINB
Input capacitance
CI/O
CPD
Typ
Max
-40 to 85
°C
Min
Unit
Max
open
open
6
pF
I/O capacitance
2.5
3.3
6
pF
Power dissipation
capacitance
2.5
3.3
29
pF
1.8
3.3
29
pF
f = 10MHz
CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated
from the operating current consumption without load. (Refer to Test Circuit). Average current
can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC/4 (per circuit)
ST1G3236
5
Test circuit
Test circuit
Figure 4.
Test circuit
VCC
6V or 2V CC
Open
GND
R1
Pulse
generator
D.U.T.
RT
CL
RL
SC116901
Table 9.
Test circuit
Test
tPLH, tPHL
Switch
CL =30pF ; RL =500Ω
Open
RT = ZOUT of pulse generator (typically 50Ω)
11/19
Waveforms
6
ST1G3236
Waveforms
Figure 5.
Waveform - propagation delay (f=1 MHz, 50% duty cycle)
Table 10.
Waveform symbol value
VCC
Symbol
12/19
3.0 to 3.6V
2.3 to 2.7V
1.65 to 1.95V
VIH
VCC
VCC
VCC
VM
1.5V
VCC/2
VCC/2
VX
VOL +0.3V
VOL +0.15V
VOL +0.15V
VY
VOH -0.3V
VOH -0.15V
VOH -0.15V
ST1G3236
Waveforms
Figure 6.
Waveform - Output Enable and Disable timing (f=1 MHz, 50% duty cycle)
2.0ns
2.0ns
90%
V
nG
VM
M
10%
t
V IH
90%
10%
GND
t
PZH
PHZ
V OH
VY
nAn
V
M
nBn
GND
t
t
PZL
PLZ
3.0V or VCC
nAn
nBn
V
M
VX
V OL
SC132311
13/19
Package mechanical data
7
ST1G3236
Package mechanical data
In order to meet environmental requirements, ST offers these devices in ECOPACK®
packages. These packages have a Lead-free second level interconnect . The category of
second level interconnect is marked on the package and on the inner box label, in
compliance with JEDEC Standard JESD97. The maximum ratings related to soldering
conditions are also marked on the inner box label. ECOPACK is an ST trademark.
ECOPACK specifications are available at: www.st.com.
Figure 7.
DFN6 (1.2x1mm) package outline
Table 11.
DFN6L (1.2x1mm) mechanical data
millimeters
Symbol
Min
Typ
Max
A
0.45
0.50
0.55
A1
0
0.02
0.05
A3
0.127
b
0.15
0.20
0.25
D
1.15
1.20
1.25
E
0.95
1
1.05
e
14/19
0.40
L
0.30
0.35
0.40
L1
0.40
0.45
0.50
ST1G3236
Package mechanical data
Figure 8.
Recommended footprint
Figure 9.
Tape and reel information
15/19
Package mechanical data
Figure 10. Reel for carrier tape information
16/19
ST1G3236
ST1G3236
Package mechanical data
Figure 11. Reel for carrier tape information
17/19
Revision history
8
ST1G3236
Revision history
Table 12.
18/19
Revision history
Date
Revision
25-July-2007
1
Changes
First release.
ST1G3236
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