Datenblatt-Suchmaschine für elektronische Bauteile |
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X1228V14 Datenblatt(PDF) 1 Page - Intersil Corporation |
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X1228V14 Datenblatt(HTML) 1 Page - Intersil Corporation |
1 / 29 page 1 ® FN8100.2 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2005. All Rights Reserved All other trademarks mentioned are the property of their respective owners. X1228 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 Ld SOIC and 14 Ld TSSOP • Repetitive Alarms • Temperature Compensation • Pb-Free Plus Anneal Available (RoHS Compliant) 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 4K EEPROM ARRAY Watchdog Timer Low Voltage Reset Registers Status (SRAM) Select PHZ/IRQ VCC VBACK 32.768kHz (SRAM) Battery Circuitry Switch OSC Compensation Data Sheet October 17, 2005 |
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