Description
The ASM1834 supervisors simultaneously monitor both 3.3 V and
5 V power sources and generate reset signals when either supply is out of tolerance.When an out
of
tolerance condition is detected, the output
reset signal of the affected supply becomes active and resets the system microprocessor/microcontroller.
up and after the supply voltage returns to an in
tolerance condition, the reset signal remains active for approximately 350 ms.
Features
- Monitors 5 V and 3.3 V Supplies Simultaneously.
- 5 V and 3.3 V Power.
- on Reset.
- 350 ms Reset Time.
- Debounced Pushbutton Reset Input.
- Push.
- pull CMOS Output
ASM1834, ASM1834D Eliminates External Pull.
- up Resistors Active LOW (ASM1834), HIGH (ASM1834D).
- Open Drain Output
ASM1834A Active LOW.
- Selectable 5 V and 3.3 V Trip Point Tolerance.
- Internal Power Drawn from Highest Input Voltage,
5 V or 3.3 V.