Maker : Intersil Corporation
Part No. : X1226

  Datasheet PDF : X1226.pdf
  Cross Reference : X1226 Cross Reference
  Buy Component : X1226 Find Stock and Price

Shortcut : X1226  X1226  X1227  X1227  X1228  X1228 

Product Information

® X1226 4K (512 x 8), 2-Wire™ RTC Data Sheet May 8, 2006 FN8098.3 Real Time Clock/Calendar 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 • 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 www.DataSheet4U.com —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 —8 Ld SOIC and 8 Ld TSSOP • Repetitive Alarms • Temperature Compensation • Pb-Free Plus Anneal Available (RoHS Compliant) BLOCK DIAGRAM OSC Compensation X1 X2 Frequency Divider 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 X1226 device is a Real Time Clock with clock/calendar, two polled alarms with integrated 512x8 EEPROM, oscillator compensation, 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. 32.768kHz PHZ/IRQ Oscillator 1Hz Timer Calendar Logic Time Keeping Registers (SRAM) Battery Switch Circuitry VCC VBACK Select Control/ Registers (EEPROM) Status Registers (SRAM) Mask SCL SDA Serial Interface Decoder Control Decode Logic Alarm Compare Alarm Regs (EEPROM) 4K EEPROM ARRAY 8 1 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 All other trademarks mentioned are the property of their respective owners. X1226 Ordering Information PART NUMBER X1226S8* X1226S8Z* (Note) X1226S8I* X1226S8IZ* (Note) X1226V8* X1226V8Z* (Note) X1226V8I* X1226V8IZ* (Note) PART MARKING X1226 X1226Z X1226I X1226ZI 1226 1226Z 1226I 1226IZ VDD (V) 2.7 to 5.5 TEMP RANGE (°C) 0 to 70 0 to 70 -40 to 85 -40 to 85 0 to 70 0 to 70 -40 to 85 -40 to 85 PACKAGE 8 Ld SOIC (150 mil) 8 Ld SOIC (150 mil) (Pb-free) 8 Ld SOIC (150 mil) 8 Ld SOIC (150 mil) (Pb-free) 8 Ld TSSOP (4.4mm) 8 Ld TSSOP (4.4mm) (Pb-free) 8 Ld TSSOP (4.4mm) 8 Ld TSSOP (4.4mm) (Pb-free) PKG. DWG. # MDP0027 MDP0027 MDP0027 MDP0027 M8.173 M8.173 M8.173 M8.173 *Add "T1" suffix for tape and reel. NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. PIN CONFIGURATION 8 LD SOIC X1 X2 PHZ/IRQ VSS 1 2 3 4 8 7 6 5 VCC VBACK SCL SDA VBACK VCC X1 X2 8 LD TSSOP 1 2 3 4 8 7 6 5 SCL SDA VSS PHZ/IRQ 2 FN8098.3 May 8, 2006 X1226 PIN ASSIGNMENTS Pin Number SOIC 1 TS...

Link URL