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Os motores de busca de Datasheet de Componentes eletrônicos |
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Os motores de busca de Datasheet de Componentes eletrônicos |
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X1228S14I Folha de dados(PDF) 1 Page - Xicor Inc. |
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X1228S14I Folha de dados(HTML) 1 Page - Xicor Inc. |
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1 / 31 page  REV 1.3 3/24/04 Characteristics subject to change without notice. 1 of 31 www.xicor.com 4K (512 x 8) 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 • 512 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-Wire™ Interface interoperable with I2C* — 400kHz data transfer rate • Frequency Output (SW Selectable: Off, 1Hz, 4096Hz, or 32.768kHz) •Low Power CMOS — 1.25µA Operating Current (Typical) • Small Package Options — 14-Lead SOIC and 14-Lead TSSOP APPLICATIONS • Utility Meters •HVAC Equipment •Audio / Video Components • Set Top Box / Television • Modems • Network Routers, Hubs, Switches, Bridges • Cellular Infrastructure Equipment • Fixed Broadband Wireless Equipment •Pagers / PDA • POS Equipment •Test Meters / Fixtures • Office Automation (Copiers, Fax) • Home Appliances • Computer Products • Other Industrial / Medical / Automotive X1228 BLOCK DIAGRAM X1 X2 Oscillator Frequency Timer Logic Divider Calendar 8 Control/ Registers 1Hz Time Keeping Registers Alarm Regs Compare RESET Control Decode Logic Alarm (EEPROM) (EEPROM) SCL SDA Serial Interface Decoder 4K EEPROM ARRAY Watchdog Timer Low Voltage Reset Registers Status (SRAM) Select PHZ/IRQ VCC VBACK 32.768kHz (SRAM) Battery Circuitry Switch OSC Compensation *I2C is a Trademark of Philips. New Features Repetitive Alarms & Temperature Compensation |
Nº de peça semelhante - X1228S14I |
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Descrição semelhante - X1228S14I |
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