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MAX694 Microprocessor Supervisory IC Datasheet
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Product Details
The MAX694 is a microprocessor monitor for monitoring the
system voltage of 4.65V.
The device includes a reset output for power up and down conditions, together with low voltage
brownout reset. Battery backup switching is provided to switch to
a back-up battery in power fail conditions. The MAX694 also includes
a watchdog timer, to reset the device in cases of program lockup.
Features
- Precision Voltage Monitor 4.65V
- Power OK/Reset Time Delay - 50, 200ms, or Adjustable
- Watchdog Timer - 100ms, 1.6 sec, or Adjustable
- Minimum Component Count
- 1µA Standby Current
- Battery Backup Power Switching
- Onboard Gating of Chip Enable Signals
- Voltage Monitor for Power Fail or Low Battery Warning
Pin Layout
Pin Description
Pin Number | Description |
---|---|
1 | Vout - Sense Output |
2 | Vcc - +5V Power Supply |
3 | GND - Ground |
4 | PFI - Power Fail Input |
5 | PFO - Power Fail Output |
6 | WDI - Watchdog Input |
7 | RESET - Active High Reset |
8 | Vbatt - Backup Battery Input |
Dimensional Drawing
Technical Data