A S 1 9 1 0 - ...

A S 1 9 1 0   -  ...

A S 1 9 1 0 - A S 1 9 1 5

D u a l - Vo l ta g e M i c r o p r o c e s s o r S u p e r v i s o r y C i r c u i ts w i t h M a n u a l R e s e t a n d Wa t c h d o g

1 General Description

D a t a S h e e t

2 Key Features

! Primary V

CC

Supervisory Range: +1.8 to +3.6V

The AS1910 - AS1915 microprocessor supervisory circuits were designed to generate a reset when one of the two monitored supply voltages falls below a factorytrimmed threshold, and to maintain the reset for a minimum timeout period when both supplies are above their reset thresholds. Guaranteed to be in the correct state for V

CC

higher than +1.0V, these devices are ideal for multiple-voltage systems with strict monitoring requirements.

The AS1913/AS1914/AS1915 feature factory-trimmed thresholds to monitor a primary voltage between 1.8 and

3.6V, and a secondary voltage between 0.9 and 2.5V.

For the AS1910/AS1911/AS1912, a secondary monitoring voltage can be user-adjusted via an external resistor divider down to 0.6V.

The devices are available with the reset output types

listed in Table 1 .

Table 1. Standard Products

!

Secondary V

CC

Supervisory Range: +0.9 to +2.5V

(AS1913/AS1914/AS1915)

!

User-Adjustable Threshold Down to +0.63V

(AS1910/AS1911/AS1912)

!

Guaranteed Reset Valid Down to V

CC

= +1.0V

! Reset Timeout Delay: 215ms

!

Manual Reset Input

! Three Reset Output Types

- Active-High Push/Pull

- Active-Low Push/Pull

- Active-Low Open-Drain

!

Watchdog Timeout Period: 1.5s

Model

AS1910/AS1913

AS1911/AS1914

AS1912/AS1915

Reset Output Type

Active-Low Push/Pull

Active-High Push/Pull

Active-Low Open-Drain

! Immune to Fast Negative V

CC

Transients

!

External Components Not Required

! Operating Temperature Range: -40 to +125°C

The AS1910 - AS1915 include a manual-reset input for systems that never fully power down the microprocessor. Additionally, these devices feature a watchdog timer to help ensure that the processor is operating within proper code boundaries.

The AS1910 - AS1915 are available in a 6-pin SOT23 package.

Figure 1. Typical Application Diagram

!

6-pin SOT23 Package

3 Applications

The devices are ideal for portable and battery-powered systems, embedded controllers, intelligent instruments, automotive systems, critical CPU monitoring, and any multi-supply application.

V

CC

V

CC2

External

Reset

6

V

CC

5

V

CC2

3

MRN

AS1913/

AS1915

1

RESETN

4

WDI

GND 2

I/O Supply

Core

Supply

RESETN

CPU

GND

I/O www.austriamicrosystems.com

Revision 1.00

1 - 15

AS1910 - AS1915

Data Sheet - P i n o u t

4 Pinout

Pin Assignments

Figure 2. Pin Assignments (Top View)

RESETN/RESET 1 6 V

CC

GND 2

AS1910 -

AS1915

5 RESETIN/V

CC2

MRN 3 4 WDI

Pin Descriptions

Table 2. Pin Descriptions

Pin

Number

1

2

3

4

5

6

Pin

Name

Description

RESETN

RESET

Active-Low Reset Output (AS1910, AS1912, AS1913, AS1915). The RESETN signal toggles from high to low when V

CC

, V

CC2

, or RESETIN input drops below the factory-trimmed

reset threshold (see Table 4 on page 4) , or MRN is pulled low, or the watchdog triggers a

reset. This output signal remains low for the reset timeout period after all supervised voltages exceed their reset threshold, or MRN goes low to high, or the watchdog triggers a reset.

Active-High Reset Output (AS1911, AS1914). The RESET signal toggles from low to high when V

CC

, V

CC2

, or RESETIN input drops below the factory-trimmed reset threshold (see

Table 4 on page 4) , or MRN is pulled low, or the watchdog triggers a reset. This output signal

remains high for the reset timeout period (see t

RP

on

page 5 ) after all supervised voltages

exceed their reset threshold, or MRN goes low to high, or the watchdog triggers a reset.

GND

Ground

MRN

WDI

Active-Low Manual Reset Input. Pulling this pin low asserts a reset. This pin is connected to the internal 50k

Ω pullup to V

CC

. This reset remains active as long as MRN is low and for the reset timeout period (see t

RP

on

page 5 ) after MRN goes high.

Note: If the manual reset feature is not used, this pin should be unconnected or connected to V

CC

.

Watchdog Input. If WDI remains high or low for longer than the watchdog timeout period

(see t

WD

on page 6

), the internal watchdog timer period expires and a reset is triggered for the reset timeout period (see t

RP

on page 5 ). The internal watchdog timer clears whenever a

reset is a asserted or when WDI senses a rising or falling edge.

Note: To disable the watchdog feature, this pin must be unconnected or connected to a tristate buffer output.

RESETIN

User-Adjustable Supervised Voltage Input (AS1910/AS1911/AS1912). This highimpedance pin serves as the input to the internal reset comparator. Connect this pin to an external resistor-divider network to set the reset threshold voltage (down to 0.63V).

V

V

CC2

CC

Primary Supervised Voltage Input (AS1913/AS1914/AS1915). This pin serves as the secondary supervised voltage input.

Primary Supervised Voltage Input. This pin serves as the primary supervised voltage input.

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Revision 1.00

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AS1910 - AS1915

Data Sheet - A b s o l u t e M a x i m u m R a t i n g s

5 Absolute Maximum Ratings

Stresses beyond those listed in

Table 3

may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in Section 5 Electrical

Characteristics on page 3 is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

Table 3. Absolute Maximum Ratings

Parameter

V

CC

, V

CC2

to GND

Open-Drain RESETN

Push/Pull RESET, RESETN

MRN, WDI, RESETIN to GND

Min

-0.3

-0.3

-0.3

-0.3

Max

+5.0

+7.0

V

CC

+

0.3

V

CC

+

0.3

20

20

Units

V

V

V

V mA mA

Comments

Input Current (V

CC

)

Output Current (RESET, RESETN)

Continuous Power Dissipation

(T

AMB

= +70ºC)

Operating Temperature Range

Junction Temperature

Storage Temperature Range

-40

-65

696

+125

+150

+150 mW

ºC

ºC

ºC

Derate 8.7mW/ºC above +70ºC

Package Body Temperature

+260 ºC

The reflow peak soldering temperature (body temperature) specified is in accordance with

IPC/JEDEC J-STD-020C “Moisture/Reflow

Sensitivity Classification for Non-Hermetic Solid

State Surface Mount Devices”.

The lead finish for Pb-free leaded packages is matte tin (100% Sn).

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Revision 1.00

3 - 15

AS1910 - AS1915

Data Sheet - E l e c t r i c a l C h a r a c t e r i s t i c s

6 Electrical Characteristics

V

CC

= +2.7 to +3.6V for AS19xx-T/S/R, V

CC

= +2.1 to +2.75V for AS19xx- Z/Y, V

CC

= +1.53 to +2.0V for AS19xx-W/V;

T

AMB

= -40 to +125ºC (unless otherwise specified). Typ values @ T

AMB

= +25°C.

Table 4. Electrical Characteristics

Symbol

Parameter

1

I

V

V

V

I

CC

CC

CC2

TH

TH2

Operating Voltage Range

V

CC

Supply Current

(MRN and WDI Not Connected)

V

V

V

CC2

CC

CC2

Supply Current

Reset Threshold

(V

CC

Falling)

Reset Threshold

Conditions Min Typ Max Units

T

AMB

= 0 to +85ºC

T

AMB

= -40 to +125ºC

V

CC

= +3.6V, No Load,

T

AMB

= -40ºC to +85ºC

V

CC

= +3.6V, No Load,

T

AMB

= -40 to +125ºC

V

CC2

= +2.5V

T

AMB

= -40 to +85ºC

T

AMB

= -40 to +125ºC

T

AMB

= -40 to +85ºC

T

AMB

= -40 to +125ºC

T

AMB

= -40 to +85ºC

T

AMB

= -40 to +125ºC

T

AMB

= -40 to +85ºC

AS19xx-T

AS19xx-S

AS19xx-R

AS19xx-Z

T

AMB

= -40 to +125ºC

T

AMB

= -40 to +85ºC

T

AMB

= -40 to +125ºC

T

AMB

= -40 to +85ºC

T

AMB

= -40 to +125ºC

T

AMB

= -40 to +85ºC

T

AMB

= -40 to +125ºC

T

AMB

= -40 to +85ºC

AS19xx-Y

AS19xx-W

AS19xx-V

AS19xx-Z

T

AMB

= -40 to +125ºC

T

AMB

= -40 to +85ºC

T

AMB

= -40 to +125ºC

T

AMB

= -40 to +85ºC

T

AMB

= -40 to +125ºC

T

AMB

= -40 to +85ºC

T

AMB

= -40 to +125ºC

T

AMB

= -40 to +85ºC

AS19xx-Y

AS19xx-W

AS19xx-V

AS19xx-I

T

AMB

= -40 to +125ºC

T

AMB

= -40 to +85ºC

T

AMB

= -40 to +125ºC

T

AMB

= -40 to +85ºC

T

AMB

= -40 to +125ºC

T

AMB

= -40 to +85ºC

T

AMB

= -40 to +125ºC

T

AMB

= -40 to +85ºC

AS19xx-H

AS19xx-G

AS19xx-F

AS19xx-E

T

AMB

= -40 to +125ºC

T

AMB

= -40 to +85ºC

T

AMB

= -40 to +125ºC

AS19xx-D

1.0

1.2

5.8

3.6

3.6

13

21

2

2.994

3.08

3.154

2.972

3.179

2.848

2.93

3.000

2.827

3.024

2.556

2.63

2.693

2.538

2.714

2.255

2.32

2.376

2.239

2.394

2.129

2.19

2.243

2.113

2.260

1.623

1.67

1.710

1.612

1.723

1.536

1.58

1.618

1.525

1.631

2.237 2.313

2.387

2.232

2.394

2.116

2.188

2.258

2.111

2.265

1.610 1.665

1.718

1.607

1.723

1.523 1.575

1.625

1.520

1.630

1.342 1.388

1.432

1.339

1.437

1.270 1.313

1.355

1.267

1.359

1.073

1.11

1.146

1.071

1.149

1.015

1.05

1.084

1.013

1.087

0.806 0.833

0.860

0.804

0.862

0.762 0.788

0.813

0.760

0.816

V

µA

µA

V

V www.austriamicrosystems.com

Revision 1.00

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AS1910 - AS1915

Data Sheet - E l e c t r i c a l C h a r a c t e r i s t i c s

Table 4. Electrical Characteristics (Continued)

Symbol

Parameter

1

Reset Threshold

Temperature Coefficient

V

RESETINTH

I

RESETIN

Reset Threshold Hysteresis

RESETIN Threshold

RESETIN Hysteresis

RESETIN Input Current

2

Conditions Min Typ Max Units

60 ppm/

ºC

8 x

V

TH

V

RESETINTH

Falling, T

AMB

= 0 to +85ºC 0.615 0.630 0.645

T

AMB

= -40 to +125ºC 0.61

0.65

8 x

V

TH

T

AMB

= -40 to +85ºC

T

AMB

= -40 to +125ºC

-25

-100

+25

+100 mV

V mV nA t

RD

V

CC

to Reset

Output Delay

RESETIN to Reset

Output Delay

V

CC

= V

TH

to (V

TH

- 100mV) 55

45

µs

µs

I t

V

V

RP

OL

OH

LKG

V

V

OH

OL

Reset Timeout Period

RESETN Output Low

(Push/Pull or Open-Drain)

RESETN Output High

(Push/Pull Only)

Open-Drain RESETN Output

Leakage Current

RESET Output High

(Push/Pull Only)

RESET Output Low

(Push/Pull Only)

V

RESETIN

= V

RESETINTH

to

(V

RESETINTH

- 30mV)

T

AMB

= -40 to +85ºC

T

AMB

= -40 to +125ºC

V

CC

≥ 1.0V, I

SINK

= 50µA,

Reset Asserted, T

AMB

= 0 to +85ºC

V

CC

≥ 1.2V, I

SINK

= 100µA, Reset

Asserted

V

CC

≥ 2.55V, I

SINK

= 1.2mA,

Reset Asserted

V

CC

≥ 3.3V, I

SINK

= 3.2mA,

Reset Asserted

V

CC

≥ 1.8V, I

SOURCE

= 200µA,

Reset Not Asserted

V

CC

≥ 3.15V, I

SOURCE

= 500µA,

Reset Not Asserted

V

CC

≥ 3.3V, I

SOURCE

= 800µA,

Reset Not Asserted

RESETN Not Asserted

T

AMB

= +25ºC

V

CC

≥ 1.0V, I

SOURCE

= 1µA,

Reset Asserted, T

AMB

= 0 to +85ºC

V

CC

≥ 1.50V, I

SOURCE

= 100µA,

Reset Asserted

V

CC

≥ 2.55V, I

SOURCE

= 500µA,

Reset Asserted

V

CC

≥ 3.3V, I

SOURCE

= 800µA,

Reset Asserted

V

CC

≥ 1.8V, I

SINK

= 500µA,

Reset Asserted

V

CC

≥ 3.15V, I

SINK

= 1.2mA,

Reset Asserted

V

CC

≥ 3.3V, I

SINK

= 3.2mA,

Reset Asserted

140

100

0.8 x

V

V

CC

CC

0.8 x

V

0.8 x

V

0.8 x

V

0.8 x

V

CC

CC

CC

CC

0.8 x

V

CC

0.8 x

215 280

320

0.3

0.3

0.3

0.4

1.0

0.2

0.3

0.3

0.4 ms

V

V

µA

V

V

Manual Reset Input

V

IL

0.3 x

V

CC

MRN Input voltage V

V

IH

0.7 x

V

CC www.austriamicrosystems.com

Revision 1.00

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AS1910 - AS1915

Data Sheet - E l e c t r i c a l C h a r a c t e r i s t i c s

Table 4. Electrical Characteristics (Continued)

Symbol

Parameter

1

MRN Minimum Input Pulse

MRN Transient Rejection

Watchdog Input

MRN to Reset Delay

MRN Pullup Resistance t

WD

Watchdog Timeout Period t

I

WDI

V

IL

V

IH

WDI

WDI Pulse Width

2

WDI Input Voltage

WDI Input Current

T

T

AMB

Conditions

AMB

= -40 to +85ºC

= -40 to +125ºC

WDI = V

CC

, Time Average

WDI = 0, Time Average

Min

1

25

Typ

90

130

50

Max Units

µs ns ns

75 k

Ω

1.12 1.5

0.80

2.4

2.60 s

20 ns

0.7 x

V

CC

-20

80

-11

1. Over-temperature limits are guaranteed by design and not production tested. Devices tested at +25ºC.

2. Guaranteed by design and not production tested.

0.3 x

V

CC

160

V

µA www.austriamicrosystems.com

Revision 1.00

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AS1910 - AS1915

Data Sheet - Ty p i c a l O p e r a t i n g C h a r a c t e r i s t i c s

7 Typical Operating Characteristics

T

AMB

= +25ºC (unless otherwise specified).

Figure 3. Normalized Reset Threshold Delay vs.

Temperature

Figure 4. V

OUT

vs. V

CC

; V

CC2

= 2.50V, V

TH

= 1.58V,

Active-Low (Typ)

1.06

1.04

1.02

1

0.98

0.96

3.00

2.50

2.00

1.50

1.00

0.50

0.00

-0.50

5.50

5.00

4.50

4.00

3.50

0 0.5

1 1.5 2 2.5 3 3.5 4 4.5 5

V

CC

(V)

Figure 6. Supply Current vs. Temperature

0.94

-40 -20 0 20 40 60 80 100 120

Temperature (°C)

Figure 5. Reset Timeout Period vs. Temperature

250

240

230

220

210

200

190

180

170

160

150

-40 -20 0 20 40 60 80 100 120

Temperature (°C)

Figure 7. V

OH

vs. I

SOURCE

; V

CC

= 3.2V

3.25

3.2

3.15

3.1

3.05

3

2.95

2.9

0 0.2

0.4

0.6

0.8

I

SOURCE

(mA)

1 1.2

0.5

0.45

0.4

0.35

0.3

0.25

0.2

0.15

0.1

0.05

0

0

10

9

8

7

6

5

4

V

CC

= 1.58V V Version

V

CC

= 3.08V T Version

3

-50 -25 0 25 50 75 100 125

Temperature (°C)

Figure 8. V

OL

vs. I

SINK

; V

CC

= 3.2V

1 2 3 4

I

SINK

(mA)

5 6 7 www.austriamicrosystems.com

Revision 1.00

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AS1910 - AS1915

Data Sheet - D e t a i l e d D e s c r i p t i o n

8 Detailed Description

The AS1910 - AS1915 supervisory circuits were designed to generate a reset when one of the two monitored supply voltages falls below its factory-trimmed trip threshold (see V

TH

on page 4 and V

TH2

on page 4

), and to maintain the reset for a minimum timeout period (see t

RP

on

page 5 ) after all supplies have stabilized.

The integrated watchdog timer

(see Watchdog Input on page 10)

helps mitigate against bad programming code or clock signals, and/or poor peripheral response. An active-low manual reset input

(see Manual Reset Input on page 10)

allows for an externally activated system reset.

RESET/RESETN

Whenever one of the monitored voltages falls below its reset threshold, the RESET output (AS1910, AS1912, AS1913,

AS1915) asserts low or the RESETN output (AS1911, AS1914) asserts high. Once all monitored voltages have stabilized, an internal timer keeps the reset asserted for the reset timeout period (t

RP

). After the t

RP

period, the RESET or

RESETN output return to their original state

(see Figure 10) .

Figure 9. Functional Diagram of V

CC

Supervisory Application

6

V

CC

AS1913/AS1914/AS1915

Reset Timeout

Delay Generator

1

RESETN/

RESET

+

0.63V

5

V

CC2

V

CC

3

MRN

4

WDI

Watchdog Transition

Detector

Watchdog

Timer

2

GND

Figure 10. Reset Timing Diagram

V

CC

1V

RESETN

RESET

GND

V

TH t

RP t

RP www.austriamicrosystems.com

Revision 1.00

t

RD

V

TH t

RD

1V

8 - 15

AS1910 - AS1915

Data Sheet - D e t a i l e d D e s c r i p t i o n

Figure 11. Functional Diagram of RESETIN Supervisory Application

6

V

CC

AS1910/AS1911/AS1912

Reset Timeout

Delay Generator

+

1.26V

0.63V

5

RESETIN

3

MRN

4

WDI

Watchdog Transition

Detector

V

CC

Watchdog

Timer

1

RESETN/

RESET

2

GND

RESETIN

The AS1910/AS1911/AS1912 feature a user-adjustable supervisory voltage input (RESETIN). The threshold voltage for RESETIN is between 0.61 and 0.65V (0.63 typ).

Figure 12. Voltage Monitoring Circuit

V

MONITOR

R

1

R

2

5

RESETIN

AS1910/

AS1911/

AS1912

V

CC

≥ V

RESETIN

To monitor a voltage higher than 0.63V, connect a resistor divider network to the circuit as shown in Figure 12

. For the circuit shown in

Figure 12 , the threshold at V

MONITOR

is:

V

MONITOR_TRIP

= 0.63V [(R

1

+ R

2

)/R

2

]

Note:

Since RESETIN is powered by V

CC

, V

RESETIN

must not be larger than V

CC

.

(EQ 1)

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Revision 1.00

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AS1910 - AS1915

Data Sheet - D e t a i l e d D e s c r i p t i o n

Watchdog Input

The integrated watchdog feature can be used to monitor processor activity via pin WDI, and can detect pulses as short as 50ns. The watchdog requires that the processor toggle the watchdog logic input at regular intervals, within a specified minimum timeout period (1.5s, typ). A reset is asserted for the reset timeout period. As long as reset is asserted, the timer remains cleared and is not incremented. When reset is deasserted, the watchdog timer starts counting

(

Figure 11

).

Note:

The watchdog timer can be cleared with a reset pulse or by toggling WDI.

Figure 13. Watchdog Timing Relationship

V

CC t

RST

RESETN t

RP t

WD t

RP

WDI

The RESET signal is the inverse of the RESETN signal.

The watchdog is internally driven low during most (87.5%) of the watchdog timeout period (see t

WD

on

page 6 ) and

high for the rest of the watchdog timeout period. When pin WDI is left unconnected, this internal driver clears the watchdog timer every 1.4s. When WDI is tri-stated or is not connected, the maximum allowable leakage current is

10µA and the maximum allowable load capacitance is 200pF.

Note:

The watchdog function can be disabled by leaving pin WDI unconnected or connecting it to a tri-state output buffer.

Manual Reset Input

The active-low pin MRN is used to force a manual reset. This input can be driven by CMOS logic levels or with opendrain collector outputs.

Pulling MRN low asserts a reset which will remain asserted as long as MRN is kept low, and for the timeout period (see t

RP

on page 5

) after MRN goes high (140ms min). The manual reset circuitry has an internal 50k

Ω pullup resistor, thus it can be left open if not used.

To create a manual-reset circuit, connect a normally open momentary switch from pin MRN to GND

(see Figure 1 on page 1) ; external debounce circuitry is not required in this configuration.

If MRN is driven via long cables or the device is used in a noisy environment, a 0.1µF capacitor between pin MRN and

GND will provide additional noise immunity.

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Revision 1.00

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AS1910 - AS1915

Data Sheet - A p p l i c a t i o n I n f o r m a t i o n

9 Application Information

Watchdog Input Current

The watchdog input is driven through an internal buffer and an internal series resistor from the watchdog timer (see

Figure 11 on page 9) . When pin WDI is left unconnected (watchdog disabled), the watchdog timer is serviced within the

watchdog timeout period (see t

WD

on page 6

) by a low-high-low pulse from the counter chain. For minimum watchdog input current (minimum overall power consumption), pull WDI low for most of the watchdog timeout period, pulsing it low-high-low once within the first 7/8 (87.5%) of the watchdog timeout period to reset the watchdog timer.

Note:

If WDI is externally driven high for the majority of the timeout period, up to 160µA can flow into pin WDI.

Interfacing to Bi-Directional CPU Reset Pins

Since the reset outputs of the AS1912 and AS1915 are open drain, these devices interface easily with processors that have bi-directional reset pins. Connecting the processor reset output directly to the AS1912/AS1915 RESETN pin with a single pullup resistor

(see Figure 14)

allows the AS1912/AS1912 to assert a reset.

Figure 14. AS1912 or AS1915 RESETN-to-CPU Bi-Directional Reset Pin

V

CC

V

CC

6

V

CC

CPU

RESETN

1

RESETN

AS1912/

AS1915

Reset

Generator

GND

GND 2

Fast Negative-Going Transients

Fast, negative-going V

CC

transients normally do not require the CPU to be shutdown. The AS1910 - AS1915 are virtually immune to such transients. Resets are issued to the CPU during power-up, powerdown, and brownout conditions.

Note:

V

CC

transients that go 100mV below the reset threshold and last

≤ 55µs typically will not assert a reset pulse.

Valid Reset to V

CC

= 0

The AS1910 - AS1915 are guaranteed to operate properly down to V

CC

= 1V. For applications requiring valid reset levels down to V

CC

= 0, a pulldown resistor to active-low outputs (push/pull only) and a pullup resistor to active-high outputs (push/pull only) will ensure that the reset line is valid during the interval where the reset output can no longer sink or source current.

Watchdog Tips

Careful consideration should be taken when implementing the AS1910 - AS1915 watchdog feature.

One method of supervising software code execution is to set/reset the watchdog input at different places in the code, rather than pulsing the watchdog input high-low-high or low-high-low. This method avoids a loop condition in which the watchdog timer would continue to be reset inside the loop, preventing the watchdog from ever timing out.

Figure 15 shows a flowchart where the input/output driving the watchdog is set high at the beginning of the routine, set

low at the beginning of every subroutine, then set high again when the routine returns to the beginning. If the routine should hang in a subroutine, the problem would quickly be corrected, since the I/O is continually set low and the watchdog timer is allowed to time out, causing a reset or interrupt to be issued

(see Watchdog Input Current on page 11) .

This method results in higher averaged WDI input current over time than a case where WDI is held low for the majority

(87.5%) of the timeout period and periodically pulsing it low-high-low.

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AS1910 - AS1915

Data Sheet - A p p l i c a t i o n I n f o r m a t i o n

Figure 15. Example Watchdog Programming Flowchart

Start

Set WDI

High

Program

Code

Subroutine or

Program Loop

Set WDI Low

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AS1910 - AS1915

Data Sheet - P a c k a g e D r a w i n g s a n d M a r k i n g s

10 Package Drawings and Markings

The devices are available in a 6-pin SOT23 package.

Figure 16. 6-pin SOT23 Package

Notes:

1. All dimensions are in millimeters.

2. Foot length measured at intercept point between datum A and lead surface.

3. Package outline inclusive of mold flash 7 metal burr.

4. Package outline inclusive of solder plating.

5. Compliant with EIAJ SC74A.

6. PKG ST 0004 Rev A supersedes SOT23-D-2005 Rev C.

Symbol Min Max

A1 0.00 0.15

A2 0.90 1.30

b 0.30

0.50

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E1 1.50

e1 1.90REF

α

1.75

L 0.30

e 0.95REF

0.55

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Data Sheet - O r d e r i n g I n f o r m a t i o n

11 Ordering Information

The devices are available as the standard products shown in Table 5 .

Table 5. Ordering Information

Model

AS1910S-T

AS1910R-T

AS1910Z-T

AS1910V-T

AS1911S-T

AS1911R-T

AS1911Z-T

AS1911V-T

AS1912S-T

AS1912R-T

AS1912Z-T

AS1912V-T

AS1913TZ-T

AS1913SF-T

AS1913VD-T

AS1914TZ-T

AS1914SF-T

AS1914VD-T

AS1915TZ-T

AS1915SF-T

AS1915VD-T

ASIA

ASIB

ASIC

ASID

ASIE

ASIF

ASIG

ASIH

Marking

ASH3

ASH4

ASH5

ASH6

ASH7

ASH8

ASH9

ASII

ASIJ

ASIK

ASIL

ASIM

ASIN

Reset Output Type

Active-Low Push/Pull

Active-Low Push/Pull

Active-Low Push/Pull

Active-Low Push/Pull

Active High Push/Pull

Active High Push/Pull

Active High Push/Pull

Active High Push/Pull

Open Drain

Open Drain

Open Drain

Open Drain

Active-Low Push/Pull

Active-Low Push/Pull

Active-Low Push/Pull

Active High Push/Pull

Active High Push/Pull

Active High Push/Pull

Open-Drain

Open-Drain

Open-Drain

Thresholds

2.93V, Adjustable

2.63V, Adjustable

2.32V, Adjustable

1.58V, Adjustable

2.93V, Adjustable

2.63V, Adjustable

2.32V, Adjustable

1.58V, Adjustable

2.93V, Adjustable

2.63V, Adjustable

2.32V, Adjustable

1.58V, Adjustable

3.08V, 2.313V

2.93V,1.05V

1.58V, 0.788V

3.08V, 2.313V

2.93V,1.05V

1.58V, 0.788V

3.08V, 2.313V

2.93V,1.05V

1.58V, 0.788V

Delivery Form

Tape and Reel

Tape and Reel

Tape and Reel

Tape and Reel

Tape and Reel

Tape and Reel

Tape and Reel

Tape and Reel

Tape and Reel

Tape and Reel

Tape and Reel

Tape and Reel

Tape and Reel

Tape and Reel

Tape and Reel

Tape and Reel

Tape and Reel

Tape and Reel

Tape and Reel

Tape and Reel

Tape and Reel

Package

6-pin SOT23

6-pin SOT23

6-pin SOT23

6-pin SOT23

6-pin SOT23

6-pin SOT23

6-pin SOT23

6-pin SOT23

6-pin SOT23

6-pin SOT23

6-pin SOT23

6-pin SOT23

6-pin SOT23

6-pin SOT23

6-pin SOT23

6-pin SOT23

6-pin SOT23

6-pin SOT23

6-pin SOT23

6-pin SOT23

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AS1910 - AS1915

Data Sheet

Copyrights

Copyright © 1997-2007, austriamicrosystems AG, Schloss Premstaetten, 8141 Unterpremstaetten, Austria-Europe.

Trademarks Registered ®. All rights reserved. The material herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner.

All products and companies mentioned are trademarks or registered trademarks of their respective companies.

Disclaimer

Devices sold by austriamicrosystems AG are covered by the warranty and patent indemnification provisions appearing in its Term of Sale. austriamicrosystems AG makes no warranty, express, statutory, implied, or by description regarding the information set forth herein or regarding the freedom of the described devices from patent infringement. austriamicrosystems AG reserves the right to change specifications and prices at any time and without notice. Therefore, prior to designing this product into a system, it is necessary to check with austriamicrosystems AG for current information.

This product is intended for use in normal commercial applications. Applications requiring extended temperature range, unusual environmental requirements, or high reliability applications, such as military, medical life-support or lifesustaining equipment are specifically not recommended without additional processing by austriamicrosystems AG for each application. For shipments of less than 100 parts the manufacturing flow might show deviations from the standard production flow, such as test flow or test location.

The information furnished here by austriamicrosystems AG is believed to be correct and accurate. However, austriamicrosystems AG shall not be liable to recipient or any third party for any damages, including but not limited to personal injury, property damage, loss of profits, loss of use, interruption of business or indirect, special, incidental or consequential damages, of any kind, in connection with or arising out of the furnishing, performance or use of the technical data herein. No obligation or liability to recipient or any third party shall arise or flow out of austriamicrosystems AG rendering of technical or other services.

Contact Information

Headquarters

austriamicrosystems AG

A-8141 Schloss Premstaetten, Austria

Tel: +43 (0) 3136 500 0

Fax: +43 (0) 3136 525 01

For Sales Offices, Distributors and Representatives, please visit: http://www.austriamicrosystems.com/contact www.austriamicrosystems.com

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