ADM6321AX29ARJZ-R7

ADM6321AX29ARJZ-R7 Datasheet

The ADM6316/ADM6317/ADM6318/ADM6319/ADM6320/ ADM6321/ADM6322 are supervisory circuits that monitor power supply voltage levels and code execution integrity in microprocessor-based systems. As well as providing power-on reset signals, an on-chip watchdog timer can reset the microprocessor if it fails to strobe within a preset timeout period. A reset signal can also be asserted by an external push button through a manual reset input. The seven devices feature different combinations of watchdog input, manual reset input, and output stage configuration, as shown in Table

Part	Datasheet
ADM6321AX29ARJZ-R7	ADM6321AX29ARJZ-R7 (pdf)

PDF Datasheet Preview
Data Sheet Supervisory Circuits with Watchdog and Manual Reset in 5-Lead SOT-23 26 reset threshold options V to 5 V in 100 mV increments 4 reset timeout options 1 ms, 20 ms, 140 ms, and 1120 ms minimum 4 watchdog timeout options ms, 102 ms, 1600 ms, and sec typical Manual reset input Reset output stages Push-pull active low Open-drain active low Push-pull active high Low power consumption 5 uA Guaranteed reset output valid to VCC = 1 V Power supply glitch immunity Specified over industrial temperature range 5-lead SOT-23 package Microprocessor systems Computers Controllers Intelligent instruments Portable equipment The ADM6316/ADM6317/ADM6318/ADM6319/ADM6320/ ADM6321/ADM6322 are supervisory circuits that monitor power supply voltage levels and code execution integrity in microprocessor-based systems. As well as providing power-on reset signals, an on-chip watchdog timer can reset the microprocessor if it fails to strobe within a preset timeout period. A reset signal can also be asserted by an external push button through a manual reset input. The seven devices feature different combinations of watchdog input, manual reset input, and output stage configuration, as shown in Table Table Selection Table Part No. ADM6316 ADM6317 ADM6318 ADM6319 ADM6320 ADM6321 ADM6322 Watchdog Yes No Yes No Manual Reset Yes No Yes No Yes Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. FUNCTIONAL BLOCK DIAGRAMS ADM6316 VREF RESET GENERATOR VCC RESET DEBOUNCE WATCHDOG DETECTOR 04533-001 ADM6320 Figure VREF DEBOUNCE RESET GENERATOR WATCHDOG DETECTOR RESET 04533-028 Figure Each device is available in a choice of 26 reset threshold options ranging from V to 5 V in 100 mV increments. There are also four reset timeout options of 1 ms, 20 ms, 140 ms, and 1120 ms minimum and four watchdog timeout options of ms, 102 ms, 1600 ms, and sec typical . The ADM6316/ADM6317/ADM6318/ADM6319/ADM6320/ ADM6321/ADM6322 are available in 5-lead SOT-23 packages and typically consume only 3 uA, making them suitable for use in low power portable applications. RESET Push-pull No Push-pull Push-pull Open-drain Open-drain Open-drain Output Stage Open-Drain RESET Output Manual Reset Input Watchdog Input Applications Information 10 Watchdog Input Current 10 Negative Going VCC 10 Ensuring Reset Valid to VCC = 0 V 10 Watchdog Software 10 Model Options 11 Outline Dimensions 13 Ordering Guide 14 0 Initial Version Data Sheet SPECIFICATIONS VCC = full operating range, TA = TMIN to TMAX, unless otherwise noted. Table Parameter SUPPLY VCC Operating Voltage Range Supply Current RESET THRESHOLD VOLTAGE RESET THRESHOLD TEMPERATURE COEFFICIENT RESET THRESHOLD HYSTERESIS RESET TIMEOUT PERIOD ADM63xxA1 ADM63xxB1 ADM63xxC1 ADM63xxD1 VCC TO RESET DELAY PUSH-PULL OUTPUT ADM6316, ADM6317, ADM6318, ADM6319, ADM6321, ADM6322 RESET Output Voltage VTH − VTH − 1 20 140 1120 10 5 VTH 40 28 200 1600 40 RESET Rise Time RESET Output Voltage x VCC − OPEN-DRAIN OUTPUT ADM6320, ADM6321, ADM6322 RESET Output Voltage x VCC x VCC − Open-Drain Reset Output Leakage Current WATCHDOG INPUT ADM6316, ADM6317, ADM6318, ADM6320, ADM6321 Watchdog Timeout Period ADM63xxxW 2 ADM63xxxX2 ADM63xxxY2 ADM63xxxZ2 WDI Pulse Width WDI Input Threshold x VCC WDI Input Current −20 −15 20 12 VTH + VTH + 2 40 280 2240 x VCC 160 Unit V µA µA V ppm/°C ms µs ORDERING QUANTITY RL7 3000 PIECE REEL R7 3000 PIECE REEL RoHS COMPLIANT Z RoHS COMPLIANT WATCHDOG TIMEOUT PERIOD W 6.3ms TYP X 102ms TYP Y 1.6sec TYP Z 25.6sec TYP PACKAGE CODE RJ 5-LEAD SOT-23 TEMPERATURE RANGE A TO +85°C RESET THRESHOLD NUMBER 25 TO 50 Figure Ordering Code Structure Modified Diagram 04533-024 Data Sheet ORDERING GUIDE Model1, 2, 3 ADM6316xxxARJ-RL7 ADM6316xxxARJZ-R7 ADM6317xxxARJZ-R7 ADM6318xxxARJ-RL7 ADM6318xxxARJZ-R7 ADM6319xxARJZ-R7 ADM6320xxxARJ-RL7 ADM6320xxxARJZ-R7 ADM6321xxxARJZ-R7 ADM6322xxARJ-RL7 ADM6322xxARJZ-RL7 Temperature Range −40°C to +85°C −40°C to +85°C −40°C to +85°C −40°C to +85°C −40°C to +85°C −40°C to +85°C −40°C to +85°C −40°C to +85°C −40°C to +85°C −40°C to +85°C −40°C to +85°C Package Description 5-Lead SOT-23 5-Lead SOT-23 5-Lead SOT-23 5-Lead SOT-23 5-Lead SOT-23 5-Lead SOT-23 5-Lead SOT-23 5-Lead SOT-23 5-Lead SOT-23 5-Lead SOT-23 5-Lead SOT-23 Package Option RJ-5 RJ-5 RJ-5 RJ-5 RJ-5 RJ-5 RJ-5 RJ-5 RJ-5 RJ-5 RJ-5 Ordering Quantity4 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 Branding N00 M7Q M9N N02 M4Q N0S N04 N0T M8L N06 M8J 1 Complete the ordering code by inserting the reset voltage threshold, reset timeout, and watchdog timer suffixes from Table 5 to Table No watchdog timeout is available for ADM6319/ADM6322. 2 Z = RoHS Compliant Part. 3 Contact sales for the availability of nonstandard models. See Table 8 for a list of standard models. 4 A minimum of 12,000 four reels must be ordered. Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D04533-0-12/15 H

PDF Datasheet Preview

Data Sheet

Supervisory Circuits with Watchdog and Manual Reset in 5-Lead SOT-23
26 reset threshold options V to 5 V in 100 mV increments
4 reset timeout options 1 ms, 20 ms, 140 ms, and 1120 ms minimum
4 watchdog timeout options ms, 102 ms, 1600 ms, and sec typical

Manual reset input Reset output stages

Push-pull active low Open-drain active low Push-pull active high Low power consumption 5 uA Guaranteed reset output valid to VCC = 1 V Power supply glitch immunity Specified over industrial temperature range 5-lead SOT-23 package

Microprocessor systems Computers Controllers Intelligent instruments Portable equipment

The ADM6316/ADM6317/ADM6318/ADM6319/ADM6320/ ADM6321/ADM6322 are supervisory circuits that monitor power supply voltage levels and code execution integrity in microprocessor-based systems. As well as providing power-on reset signals, an on-chip watchdog timer can reset the microprocessor if it fails to strobe within a preset timeout period. A reset signal can also be asserted by an external push button through a manual reset input. The seven devices feature different combinations of watchdog input, manual reset input, and output stage configuration, as shown in Table

Table Selection Table

Part No. ADM6316 ADM6317 ADM6318 ADM6319 ADM6320 ADM6321 ADM6322

Watchdog Yes No Yes No

Manual Reset Yes No Yes No Yes

Document Feedback

Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registered trademarks are the property of their respective owners.

FUNCTIONAL BLOCK DIAGRAMS

ADM6316

VREF

RESET GENERATOR

VCC RESET

DEBOUNCE

WATCHDOG DETECTOR
04533-001

ADM6320

Figure

VREF

DEBOUNCE

RESET GENERATOR

WATCHDOG DETECTOR

RESET
04533-028

Figure

Each device is available in a choice of 26 reset threshold options ranging from V to 5 V in 100 mV increments. There are also four reset timeout options of 1 ms, 20 ms, 140 ms, and 1120 ms minimum and four watchdog timeout options of ms, 102 ms, 1600 ms, and sec typical .

The ADM6316/ADM6317/ADM6318/ADM6319/ADM6320/ ADM6321/ADM6322 are available in 5-lead SOT-23 packages and typically consume only 3 uA, making them suitable for use in low power portable applications.

RESET

Push-pull No Push-pull Push-pull Open-drain Open-drain Open-drain

Output Stage
Open-Drain RESET Output Manual Reset Input Watchdog Input Applications Information 10 Watchdog Input Current 10 Negative Going VCC 10 Ensuring Reset Valid to VCC = 0 V 10 Watchdog Software 10 Model Options 11 Outline Dimensions 13 Ordering Guide 14
0 Initial Version

Data Sheet

SPECIFICATIONS

VCC = full operating range, TA = TMIN to TMAX, unless otherwise noted.

Table

Parameter

SUPPLY

VCC Operating Voltage Range

Supply Current

RESET THRESHOLD VOLTAGE

RESET THRESHOLD TEMPERATURE COEFFICIENT

RESET THRESHOLD HYSTERESIS RESET TIMEOUT PERIOD

ADM63xxA1 ADM63xxB1 ADM63xxC1 ADM63xxD1 VCC TO RESET DELAY PUSH-PULL OUTPUT ADM6316, ADM6317, ADM6318, ADM6319, ADM6321, ADM6322 RESET Output Voltage

VTH − VTH −
1 20 140 1120
10 5 VTH 40
28 200 1600 40

RESET Rise Time RESET Output Voltage
x VCC −

OPEN-DRAIN OUTPUT ADM6320, ADM6321, ADM6322

RESET Output Voltage
x VCC x VCC −

Open-Drain Reset Output Leakage Current

WATCHDOG INPUT ADM6316, ADM6317, ADM6318, ADM6320, ADM6321

Watchdog Timeout Period

ADM63xxxW 2

ADM63xxxX2

ADM63xxxY2

ADM63xxxZ2

WDI Pulse Width

WDI Input Threshold
x VCC

WDI Input Current
−20
−15
20 12 VTH + VTH +
2 40 280 2240
x VCC 160

Unit

V µA µA V ppm/°C
ms µs
ORDERING QUANTITY RL7 3000 PIECE REEL R7 3000 PIECE REEL RoHS COMPLIANT

Z RoHS COMPLIANT

WATCHDOG TIMEOUT PERIOD W 6.3ms TYP X 102ms TYP Y 1.6sec TYP Z 25.6sec TYP

PACKAGE CODE RJ 5-LEAD SOT-23

TEMPERATURE RANGE A TO +85°C

RESET THRESHOLD NUMBER 25 TO 50
Figure Ordering Code Structure Modified Diagram
04533-024

Data Sheet
ORDERING GUIDE

Model1, 2, 3 ADM6316xxxARJ-RL7 ADM6316xxxARJZ-R7 ADM6317xxxARJZ-R7 ADM6318xxxARJ-RL7 ADM6318xxxARJZ-R7 ADM6319xxARJZ-R7 ADM6320xxxARJ-RL7 ADM6320xxxARJZ-R7 ADM6321xxxARJZ-R7 ADM6322xxARJ-RL7 ADM6322xxARJZ-RL7

Temperature Range −40°C to +85°C −40°C to +85°C −40°C to +85°C −40°C to +85°C −40°C to +85°C −40°C to +85°C −40°C to +85°C −40°C to +85°C −40°C to +85°C −40°C to +85°C −40°C to +85°C

Package Description 5-Lead SOT-23 5-Lead SOT-23 5-Lead SOT-23 5-Lead SOT-23 5-Lead SOT-23 5-Lead SOT-23 5-Lead SOT-23 5-Lead SOT-23 5-Lead SOT-23 5-Lead SOT-23 5-Lead SOT-23

Package Option RJ-5 RJ-5 RJ-5 RJ-5 RJ-5 RJ-5 RJ-5 RJ-5 RJ-5 RJ-5 RJ-5
Ordering Quantity4 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000

Branding N00 M7Q M9N N02 M4Q N0S N04 N0T M8L N06 M8J
1 Complete the ordering code by inserting the reset voltage threshold, reset timeout, and watchdog timer suffixes from

Table 5 to Table No watchdog timeout is available for ADM6319/ADM6322. 2 Z = RoHS Compliant Part. 3 Contact sales for the availability of nonstandard models. See Table 8 for a list of standard models. 4 A minimum of 12,000 four reels must be ordered.

Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners.

D04533-0-12/15 H

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived ADM6321AX29ARJZ-R7 Datasheet file may be downloaded here without warranties.

Datasheet ID: ADM6321AX29ARJZ-R7 517835