ASM1816R-15 datasheet(3/9 Pages) PULSECORE

Part #	ASM1816R-15

Description	Low Power 3.3V/3.0V 關P Reset, Active LOW, Open-Drain Output

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Manufacturer	PULSECORE [PulseCore Semiconductor]

Direct Link	http://www.onsemi.com/

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Notice: The information in this document is subject to change without notice

Low Power 3.3V/3.0V µP Reset

November 2006

ASM1816

rev 1.6

Application Information

Operation - Power Monitor

The ASM1816 detects out-of-tolerance power supply

conditions. It resets a processor during power-up, power-

down and issues a reset to the system processor when the

monitored power supply voltage is below the reset threshold.

When an out-of-tolerance VCC voltage is detected, the

RESET signal is asserted. On power-up, RESET is kept

active (LOW) for approximatley 150ms after the power supply

voltage has reached the selected tolerance. This allows the

power supply and microprocessor to stablize before RESET

is released.

tRPU

VCCTP (MIN)

VOH

VCCTP

VCCTP (MAX)

tR

VCC

RESET

Figure 1: Timing Diagram: Power-Up

VCCTP (MIN)

VCCTP

VCCTP (MAX)

tF

VCC

tRPD

VOL

RESET

Figure 2: Timing Diagram: Power-Down

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