October 2006
rev 1.6
ASM1832
Pin Configuration
PBRST
TD
TOL
GND
1
2
3
4
8
V
CC
ST
RESET
RESET
ASM1832
7
6
5
Pin Description
Pin #
8-Pin Package
1
2
Pin Name
PBRST
TD
Function
Debounced manual pushbutton reset input.
Watchdog time delay selection. (t
TD
= 150ms for TD = GND, t
TD
= 610ms for
TD=Open, and t
TD
= 1200ms for TD = V
CC
).
Selects 10% (TOL connected to GND) or 20% (TOL connected to V
CC
) trip point
tolerance.
Ground.
Active HIGH reset output. RESET is active:
1. If V
CC
falls below the reset voltage trip point.
3
4
TOL
GND
5
RESET
2. If PBRST is LOW.
3. If ST is not strobed LOW before the timeout period set by TD expires.
4. During power-up.
Active LOW reset output. (See RESET).
Strobe input.
3.3V power.
6
7
8
RESET
ST
V
CC
3.3V µP Power Supply Monitor and Reset Circuit
Notice: The information in this document is subject to change without notice
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PULSECORE [ PulseCore Semiconductor ]
