ASM1233M-3 ALSC [Alliance Semiconductor Corporation], ASM1233M-3 Datasheet - Page 3

• Manufacturer Part Number: ASM1233M-3
• Description: Low Power, 5V/3.0V, uP Reset, Active LOW, Open-Drain Output
• Manufacturer: ALSC [Alliance Semiconductor Corporation]

October 2003
rev 1.0
Figure 1: Timing Diagram: Power-Up
Application Information
Operation - Power Monitor
The ASM1233M detects out-of-tolerance power supply
conditions. It resets a processor during power-up, power-
down and generates a reset to the system processor when
the monitored power supply voltage is below the reset
threshold. When an out-of-tolerance V
the RESET signal is asserted. On power-up, RESET is kept
active (LOW) for approximatley 350ms after the power supply
voltage has reached the selected tolerance. This allows the
power supply and microprocessor to stablize before RESET
is released.
RESET
V
CC
V
CCTP
(MIN)
Low Power, 5V/3.0V, µP Reset, Active LOW, Open-Drain Output
t
R
Notice: The information in this document is subject to change without notice
V
CCTP
CC
V
t
RPU
CCTP
voltage is detected,
(MAX)
V
OH
RESET
V
CC
Figure 2: Timing Diagram: Power-Down
V
CCTP
(MAX)
V
CCTP
t
F
V
t
OL
RPD
ASM1233M
V
CCTP
(MIN)
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