Xicor X40421
The X40420/21 combines power-on reset control, watchdog timer, supply voltage supervision, and secondary supervision, manual reset, and Block Lock™ protect serial EEPROM in one package. This combination lowers system cost, reduces board space requirements, and increases reliability. This allows the power supply and system oscillator to stabilize before the processor can execute code.| Part No. | X40421 |
|---|---|
| Datasheet | X40421 Download |
| Manufacturer |  Xicor |
| Description | Dual Voltage Monitor |
| Buy | Stock & Price |
FEATURES
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● Monitor Voltages: 5V to 1.6V Memory Security Battery Switch Backup VOUT 5mA to 50mA Preliminary Datasheet 4kbit EEPROM X40420/X40421
APPLICATIONS
● Communications Equipment —Routers, Hubs, Switches —Disk arrays● Industrial Systems —Process Control —Intelligent Instrumentation
● Computer Systems —Desktop Computers —Network Servers X40420/21 Dual Voltage Monitor with Integrated CPU Supervisor and System Battery Switch
FEATURES
● Dual voltage detection and reset assertion —Three standard reset threshold settings (4.6V/2.9V, 4.6V/2.6V, 2.9V/1.6V) —VTRIP2 Programmable down to 0.9V —Adjust low voltage reset threshold voltages using special programming sequence —Reset signal valid to VCC = 1V —Monitor two voltages or detect power fail● Battery Switch Backup
● VOUT: 5mA to 50mA from VCC; or 250µA from VBATT
● Fault detection register
● Selectable power on reset timeout (0.05s, 0.2s, 0.4s, 0.8s)
● Selectable watchdog timer interval (25ms, 200ms, 1.4s, off)
● Debounced manual...
