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X1227S8Z-2.7A bảng dữ liệu(PDF) 1 Page - Intersil Corporation |
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X1227S8Z-2.7A bảng dữ liệu(HTML) 1 Page - Intersil Corporation |
1 / 28 page 1 ® FN8099.2 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. 2005-2006. All Rights Reserved *I2C is a Trademark of Philips. All other trademarks mentioned are the property of their respective owners. X1227 2-Wire™ RTC Real TimeClock/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 • Low Power CMOS — 1.25µA Operating Current (Typical) • Small Package Options — 8 Ld SOIC and 8 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 DESCRIPTION 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. All compensation and trim components are integrated on the chip. This eliminates several external discrete components and a trim capacitor, saving board area and component cost. 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) VCC VBACK 32.768kHz (SRAM) Battery Circuitry Switch OSC Compensation Data Sheet May 8, 2006 NOT RECO MME NDED FOR NEW DESI GNS SEE ISL12 027 |
Số phần tương tự - X1227S8Z-2.7A |
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Mô tả tương tự - X1227S8Z-2.7A |
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