This device combines four functions: Power-on Reset Control, Watchdog Timer, Supply Voltage Supervision, and Block Lock Protect Serial EEPROM. It features a 16Kbit SPI EEPROM, low power consumption, and a 2MHz SPI interface.
Key Features:
Extended power-on reset, selectable watchdog timer, low Vcc detection and reset assertion, and block lock protect serial EEPROM.
Power-on Reset:
The device activates a power-on reset circuit when power is applied, holding RESET active for 800ms to allow the power supply and oscillator to stabilize.
Watchdog Timer:
The watchdog timer provides an independent protection mechanism for microcontrollers, resetting the system if the microcontroller fails to restart the timer within a selectable time-out interval.
Low Voltage Monitoring:
The device monitors the Vcc level and asserts RESET if the supply voltage falls below a preset minimum VTRIP.
SPI Serial Memory:
The memory portion of the device is a CMOS serial EEPROM array with block lock protection, featuring a Serial Peripheral Interface (SPI) and software protocol.
Manual:
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