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ASM1834DSF Datasheet(PDF) 2 Page - PulseCore Semiconductor |
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ASM1834DSF Datasheet(HTML) 2 Page - PulseCore Semiconductor |
2 / 10 page 2 of 10 Notice: The information in this document is subject to change without notice Dual 5V and 3.3V µP Power Supply Supervisor with Manual Reset ASM1834/A/D November 2006 rev 1.5 Block Diagram Pin Configuration Pin Description Pin # Pin Name Function 1 5VIN 5V power supply input. 2 5V RESET 5V RESET 5V reset output (Active LOW, ASM1834, ASM1834A. Open drain outputs for ASM1834A). 5V reset output (Active HIGH, AS1834D). 35V 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 (40k Ω internal pull-up). 63.3V TOL 3.3V input tolerance select: 20% tolerance for 3.3VTOL = 3.3VIN and 10% tolerance for 3.3VTOL=GND. 7 3.3V RESET 3.3V RESET 3.3V reset output (Active LOW, ASM1834, ASM1834A. Open drain outputs for ASM1834A). 3.3V reset output (Active HIGH, AS1834D). 8 3.3VIN 3.3V power supply input. 1 2 3 4 5 6 7 8 5VIN 5V RESET * 5V TOL GND 3.3VIN 3.3V RESET * PBRST 3.3V TOL ASM1834 ASM1834A ASM1834D * AS1834D reset outputs are active HIGH (5V RESET and 3.3V RESET) Outputs are open-drain for AS1834A. 5V Tolerance Bias Low TC 3.3V Tolerance Pushbutton Level For ASM1834D 350ms Delay 5 VIN 5 VTOL PBRST 3.3 VIN 3.3 VTOL GND 3.3V RESET 3.3V RESET (ASM1834D) 5V RESET 5V RESET ASM1834 350ms Delay Reference Bias Sense and Debounce For ASM1834D - + - ASM1834A 5V RESET 3.3V RESET 40k Ω (ASM1834D) + 1 3 5 8 6 4 7 2 2 7 |
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