công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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X1288S16I-4.5A bảng dữ liệu(PDF) 1 Page - Xicor Inc. |
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X1288S16I-4.5A bảng dữ liệu(HTML) 1 Page - Xicor Inc. |
1 / 31 page REV 1.1.30 3/24/04 1 of 31 www.xicor.com Preliminary Information 2-Wire™ RTC Real Time Clock/Calendar/CPU Supervisor with EEPROM X1288 FEATURES • Real Time Clock/Calendar —Tracks time in Hours, Minutes, Seconds and Hun- dredths of a Second —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 setting 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 • 32K x 8 Bits of EEPROM — 128-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, 100Hz, or 32.768kHz) •Low Power CMOS — 1.25µA Operating Current (Typical) • Small Package Options — 16-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 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 256K 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 |
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