November 2006
rev 1.6
ASM1816
V
CC
V
CCTP
(MAX)
t
F
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
When an out-of-tolerance V
CC
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.
monitored power supply voltage is below the reset threshold.
V
CCTP
V
CCTP
(MIN)
RESET
t
RPD
V
OL
t
R
V
CCTP
(MAX)
V
CCTP
(MIN)
V
CCTP
Figure 2: Timing Diagram: Power-Down
V
CC
t
RPU
V
OH
RESET
Figure 1: Timing Diagram: Power-Up
~
~
3 of 9
~
~
~
~
Low Power 3.3V/3.0V µP Reset
Notice: The information in this document is subject to change without notice
PULSECORE [ PulseCore Semiconductor ]
