ASM1834 데이터 시트보기 (PDF) - Alliance Semiconductor
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ASM1834 Datasheet PDF : 10 Pages
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April 2005
rev 1.3
Block Diagram
1
5 VIN
3
5 VTOL
PBRST 5
3.3 VIN 8
3.3 VTOL 6
GND 4
5V Tolerance
Bias
Low TC
Reference
40kΩ
ASM1834
+
For ASM1834D
350ms Delay
-
Pushbutton Level
Sense and Debounce
3.3V Tolerance
Bias
+
-
For ASM1834D
350ms Delay
ASM1834/A/D
2 5V RESET
5V RESET
(ASM1834D)
ASM1834A
2
5V RESET
7
3.3V RESET
3.3V RESET
7
3.3V RESET (ASM1834D)
Pin Configuration
Pin Description
5VIN 1
8 3.3VIN
5V RESET *
2
ASM1834 7
ASM1834A
3.3V RESET *
5V TOL 3 ASM1834D 6 3.3V TOL
GND 4
5 PBRST
* AS1834D reset outputs are active HIGH (5V RESET and 3.3V RESET)
Outputs are open-drain for AS1834A.
Pin # Pin Name
Function
1
5VIN
5V power supply input.
5V RESET 5V reset output (Active LOW, ASM1834, ASM1834A. Open drain outputs for ASM1834A).
2
5V RESET 5V reset output (Active HIGH, AS1834D).
3
5V TOL
5V input tolerance select: 10% tolerance for 5VTOL= 5VIN and 5% tolerance for 5VTOL = GND
4
GND
Ground.
5
PBRST
Debounced manual pushbutton reset input (40kΩ internal pull-up).
6
3.3V TOL 3.3V input tolerance select: 20% tolerance for 3.3VTOL = 3.3VIN and 10% tolerance for 3.3VTOL=GND.
3.3V RESET 3.3V reset output (Active LOW, ASM1834, ASM1834A. Open drain outputs for ASM1834A).
7
3.3V RESET 3.3V reset output (Active HIGH, AS1834D).
8
3.3VIN
3.3V power supply input.
Dual 5V and 3.3V µP Power Supply Supervisor with Manual Reset
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Notice: The information in this document is subject to change without notice
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