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ASM1832 Datasheet(PDF) 2 Page - Alliance Semiconductor Corporation

Part No. ASM1832
Description  3.3V UP Power Supply Monitor and Reset Circuit
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Maker  ALSC [Alliance Semiconductor Corporation]
Homepage  http://www.alsc.com
Logo ALSC - Alliance Semiconductor Corporation

ASM1832 Datasheet(HTML) 2 Page - Alliance Semiconductor Corporation

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ASM1832
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Notice: The information in this document is subject to change without notice
3.3V µP Power Supply Monitor and Reset Circuit
rev 1.5
February 2005
Pin Configuration
Pin Description
Pin #
8-Pin Package
Pin Name
Function
1
PBRST
Debounced manual pushbutton reset input.
2TD
Watchdog time delay selection. (tTD = 150ms for TD = GND, tTD = 610ms for
TD=Open, and tTD = 1200ms for TD = VCC).
3TOL
Selects 10% (TOL connected to GND) or 20% (TOL connected to VCC) trip point
tolerance.
4
GND
Ground.
5
RESET
Active HIGH reset output. RESET is active:
1. If VCC falls below the reset voltage trip point.
2. If PBRST is LOW.
3. If ST is not strobed LOW before the timeout period set by TD expires.
4. During power-up.
6
RESET
Active LOW reset output. (See RESET).
7ST
Strobe input.
8
VCC
3.3V power.
1
2
3
4
5
6
7
8
PBRST
TD
TOL
GND
VCC
ST
RESET
RESET
ASM1832


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