Supervisory Circuits with Watchdog and Manual Reset in 5-Lead SOT-23
Data Sheet
FEATURES
26 reset threshold options 2.5 ...
Supervisory Circuits with Watchdog and Manual Reset in 5-Lead SOT-23
Data Sheet
FEATURES
26 reset threshold options 2.5 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 6.3 ms, 102 ms, 1.6 sec, and 25.6 sec (typical) Manual reset input Multiple reset output options Low power consumption Specified over wide temperature range (−40°C to +125°C) Qualified for automotive applications 5-lead SOT-23 package
ADM8316/ADM8318/ADM8319/ADM8320/ADM8321/ADM8322
FUNCTIONAL BLOCK DIAGRAMS
ADM8316
VCC VCC VREF
RESET GENERATOR
RESET
MR
DEBOUNCE WATCHDOG DETECTOR
11779-001
GND
WDI
Figure 1. ADM8316
APPLICATIONS
Automotive infotainment Microprocessor systems Computers Controllers Intelligent instruments Portable equipment
VCC
ADM8320
VREF
RESET GENERATOR
RESET
MR
DEBOUNCE WATCHDOG DETECTOR
11779-002
Free Datasheet http://www.Datasheet4U.com
GND
WDI
Figure 2. ADM8320
GENERAL DESCRIPTION
The ADM8316/ADM8318/ADM8319/ADM8320/ADM8321/ ADM8322 are supervisory circuits that monitor power supply
voltage levels and code execution integrity in microprocessorbased 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 switch through a manual reset input. The six devices feature different combinations of watchdog input, manual reset input, and out...