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RTC

Real Time Clock/Calendar/CPU Supervisor with EEPROM

FEATURES

鈥?Real Time Clock/Calendar

鈥?Tracks time in Hours, Minutes, and Seconds

鈥?Day of the Week, Day, Month, and Year

鈥?2 Polled Alarms (Non-volatile)

鈥?Settable on the Second, Minute, Hour, Day of the

Week, Day, or Month

鈥?Repeat Mode (periodic interrupts)

鈥?Oscillator Compensation on chip

鈥?Internal feedback resistor and compensation

capacitors

鈥?64 position Digitally Controlled Trim Capacitor

鈥?6 digital frequency adjustment settings to

鹵30ppm

鈥?CPU Supervisor Functions

鈥?Power On Reset, Low Voltage Sense

鈥?Watchdog Timer (SW Selectable: 0.25s, 0.75s,

1.75s, off)

鈥?Battery Switch or Super Cap Input

鈥?512 x 8 Bits of EEPROM

鈥?64-Byte Page Write Mode

鈥?8 modes of Block Lock鈩?Protection

鈥?Single Byte Write Capability

鈥?High Reliability

鈥?Data Retention: 100 years

鈥?Endurance: 100,000 cycles per byte

鈥?2-Wire鈩?Interface interoperable with I2C*

鈥?400kHz data transfer rate

鈥?Frequency Output (SW Selectable: Off, 1Hz,

4096Hz, or 32.768kHz)

鈥?Low Power CMOS

鈥?1.25碌A(chǔ) Operating Current (Typical)

鈥?Small Package Options

鈥?14-Lead SOIC and 14-Lead TSSOP

APPLICATIONS

鈥?/div>

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

Of鏗乧e Automation (Copiers, Fax)

Home Appliances

Computer Products

Other Industrial / Medical / Automotive

BLOCK DIAGRAM

OSC Compensation

X1

32.768kHz

X2

Oscillator

Frequency

Divider

1Hz

Timer

Calendar

Logic

Time

Keeping

Registers

(SRAM)

Battery

Switch

Circuitry

V

CC

V

BACK

PHZ/IRQ

Select

Status

Registers

(SRAM)

Mask

SCL

SDA

Serial

Interface

Decoder

Control

Decode

Logic

Control/

Registers

(EEPROM)

Alarm

Compare

Alarm Regs

(EEPROM)

4K

EEPROM

ARRAY

8

RESET

Watchdog

Timer

Low Voltage

Reset

*I2C is a Trademark of Philips.

REV 1.3 3/24/04

www.xicor.com

Characteristics subject to change without notice.

1 of 31

標(biāo)準(zhǔn)包裝
50
類別
集成電路 (IC)
家庭
時(shí)鐘/計(jì)時(shí) - 實(shí)時(shí)時(shí)鐘
系列
-
類型
時(shí)鐘/日歷
特點(diǎn)
警報(bào)器，閏年，監(jiān)控器，監(jiān)視計(jì)時(shí)器
存儲容量
-
時(shí)間格式
HH:MM:SS（12/24 小時(shí)）
數(shù)據(jù)格式
YY-MM-DD-dd
接口
I²C，2 線串口
電源電壓
2.7 V ~ 5.5 V
電壓 - 電源，電池
1.8 V ~ 5.5 V
工作溫度
-40°C ~ 85°C
安裝類型
表面貼裝
封裝/外殼
14-SOIC（0.154"，3.90mm 寬）
供應(yīng)商設(shè)備封裝
14-SOICN
包裝
管件

X1228S14I相關(guān)型號PDF文件下載

型號

版本

描述

廠商

下載
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X1228
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CRYSTAL OSCILLATOR 12.288000MHZ

ETC

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XICOR [Xic...

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X1228S14I Datasheet

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