EEWORLDEEWORLDEEWORLD

Part Number

Search

X1226S8T2

Description
IC rtc clk/calendar i2c 8-soic
Categorysemiconductor    Analog mixed-signal IC   
File Size364KB,25 Pages
ManufacturerIntersil ( Renesas )
Websitehttp://www.intersil.com/cda/home/
Download Datasheet Compare View All

X1226S8T2 Overview

IC rtc clk/calendar i2c 8-soic

®
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
—Endurance: 100,000 Cycles Per Byte
• 2-Wire™ Interface Interoperable with I
2
C
—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
V
CC
V
BACK
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.

X1226S8T2 Related Products

X1226S8T2 X1226V8IT2 X1226V8T2
Description IC rtc clk/calendar i2c 8-soic IC rtc clk/calendar i2c 8-tssop IC rtc clk/calendar i2c 8-tssop
2005 MSP430 Global Top Technology Seminar, a Technology Ceremony for Global MSP430 Elites
At the Advanced Technology Conference (ATC) held around the world (including the United States, Asia and Europe), you will experience the most cutting-edge ultra-low power technology and be the first ...
rain Microcontroller MCU
Hardware design of vehicle voice navigation terminal based on TC45
I. IntroductionThe construction of China's intelligent transportation system is still in its early stages. As a component of it, the navigation system consists of three parts: navigation terminal, dig...
frozenviolet Automotive Electronics
Long time help
When long-term timing is required, such as several days or hours, what methods or external chips do you use?...
zzbaizhi Microcontroller MCU
NRF905 cannot send data. Is it because my program is wrong?
[align=left]Is this program wrong? Please give me some advice.[/align]...
妖月颜 RF/Wirelessly
Software phase lock problem of TI DSP2812
1. Phase-locked The meaning of phase-locked is the automatic control of phase synchronization. The automatic control closed-loop system that can complete the phase synchronization of two electrical si...
fish001 DSP and ARM Processors

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 1298  1154  2223  2619  502  27  24  45  53  11 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号