Datasheet Maxim MAX16154 — 数据表

Click here for production status of specific part numbers. MAX16152/MAX16153/
MAX16154/MAX16155 nanoPower Supervisor and Watchdog Timer General Description Benefits and Features The MAX16152/MAX16153/MAX16154/MAX16155 ultralow-current supervisory circuits monitor a single system
supply voltage and the integrity of code execution by a
microprocessor or microcontroller. These supervisors assert the reset output whenever the VCC supply voltage is
greater than the minimum operating voltage, but less than
the reset threshold. After the supply voltage rises above
the reset threshold, the reset output remains asserted for
the reset timeout period, and then de-asserts. Reset voltage thresholds are available from 1.50V to 5.0V in approximately 100mV increments. ● 400nA (typ) Supply Current
● 1.2V to 5.5V Operating Supply Range
● Monitors Supply Voltage and Provides System Reset
Signal
● 1.5V to 5V Input Threshold Range in 100mV
Increments
● Watchdog Function Detects Faulty Code Execution
● Open-Drain Reset and Watchdog Outputs
● Watchdog Timer Enable Input
● 6-Bump WLP Package
● 6-Pin SOT23 Package
● -40°C to +125°C Operating Temperature Range A watchdog timer circuit monitors microprocessor or microcontroller activity. During normal operation, the microprocessor or microcontroller should repeatedly toggle the
watchdog input (WDI) before the supervisor’s watchdog
timeout period elapses to confirm that the system is executing code properly. If the microprocessor or microcontroller does not provide a valid watchdog input transition
before the timeout period expires, the supervisor asserts
a watchdog (WDO) output to signal that the system is …