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MAX703 Microprocessor Reset IC Datasheet
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Product Details
The MAX703 is a microprocessor monitor for monitoring the
system voltage of a microprocessor system.
The MAX703 will provide a RESET signal when the voltage falls below 4.65V, the
RESET signal is held for at least 200ms when the voltage returns to the
correct operating voltage. The device will also provide back-up switching for
a CMOS RAM. A power-fail warning output pin is also available for
low battery detection or for monitoring a power supply other than +5.
Features
- Battery-Backup Power Switching
- Precision Supply-Voltage Monitor 4.65V
- 200ms Reset Pulse Width
- Debounced TTL/CMOS-Compatible Manual-Reset Input
- 200µA Quiescent Current
- Voltage Monitor for Power-Fail or Low-Battery Warning
Pin Layout
Pin Description
| Pin Number | Description |
|---|---|
| 1 | Vout - Voltage Sense Input |
| 2 | Vcc - +5V Supply Input |
| 3 | GND - Ground |
| 4 | PFI - Power Fail Voltage Monitor Input |
| 5 | PFO - Power Fail Output |
| 6 | MR - Manual Reset Input |
| 7 | RESET - Active Low Reset Output |
| 8 | Vbatt - Backup Battery Input |
Dimensional Drawing
Technical Data
