Xicor X1227
The X1227 device is a Real Time Clock with clock/ calendar, two polled alarms with integrated 512x8 EEPROM, oscillator compensation, CPU Supervisor (POR/LVS and WDT) and battery backup switch. The oscillator uses an external, low-cost 32.768kHz crystal. This eliminates several external discrete components and a trim capacitor, saving board area and component cost.| Part No. | X1227 |
|---|---|
| Datasheet | X1227 Download |
| Manufacturer |  Xicor |
| Description | Real Time Clock/Calendar/CPU Supervisor with EEPROM |
| Buy | Stock & Price |
FEATURES
Repetitive Alarms & Temperature Compensation 4K (512 x 8) X1227APPLICATIONS
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● 2-Wire™ RTC Real Time Clock/Calendar/CPU Supervisor with EEPROM
FEATURES
● Real Time Clock/Calendar — Tracks time in Hours, Minutes, and Seconds — Day of the Week, Day, Month, and Year● 2 Polled Alarms (Non-volatile) — Settable on the Second, Minute, Hour, Day of the Week, Day, or Month — Repeat Mode (periodic interrupts)
● Oscillator Compensation on chip — Internal feedback resistor and compensation capacitors — 64 position Digitally Controlled Trim Capacitor — 6 digital frequency adjustment settings to ±30ppm
● CPU Supervisor Functions — Power On Reset, Low Voltage Sense — Watchdog Timer (SW Selectable: 0.25s, 0.75s, 1.75s, off)
● Battery Switch or Super Cap Input
● 4K x 8 Bits of EEPROM — 64-Byte Page Write Mode — 8 modes of Block Lock™ Protection — Single Byte Write Capability
● High Reliability — Data Retention: 100 years — Endurance: 100,000 cycles per byte
● 2-Wir...
