X1288V14-4.5A

更新时间： 2024-02-06 23:54:29

品牌	Logo	应用领域
XICOR		监控可编程只读存储器电动程控只读存储器电可擦编程只读存储器时钟
页数	文件大小	规格书
31页	559K
描述
2-Wire RTC Real Time Clock/Calendar/CPU Supervisor with EEPROM

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数据手册

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X1288V14-4.5A 数据手册

New Features

Repetitive Alarms &

Temperature Compensation

Preliminary Information

2-Wire^™RTC Real Time Clock/Calendar/CPU Supervisor with EEPROM

X1288

• 2-Wire™ Interface interoperable with I2C*

—433kHz data transfer rate

• Frequency Output (SW Selectable: Off, 1Hz, 133Hz,

or ±2.768kHz)

• Low Power CMOS

—1.25µA Operating Current (Typical)

• Small Package Options

—16-Lead SOIC and 14-LeadTSSOP

FEATURES

• Real Time Clock/Calendar

—Tracks time in Hours, Minutes, Seconds and Hun-

dredths of a Second

—Day of the Week, Day, Month, andYear

• 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 setting to ±±3ppm

• CPU Supervisor Functions

—Power On Reset, Low Voltage Sense

—Watchdog Timer (SW Selectable: 3.25s, 3.75s,

1.75s, off)

• Battery Switch or Super Cap Input

• ±2K x 8 Bits of EEPROM

—128-Byte Page Write Mode

—8 modes of Block Lock™ Protection

—Single Byte Write Capability

• High Reliability

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

—Data Retention: 133 years

—Endurance: 133,333 cycles per byte

• Other Industrial / Medical / Automotive

BLOCK DIAGRAM

OSC

Compensation

Timer

Calendar

Logic

Battery

Switch

Circuitry

Time

Keeping

Registers

Frequency

Divider

1Hz

Oscillator

32.768kHz

BACK

Select

(SRAM)

PHZ/IRQ

Status

Control/

Control

Decode

Logic

Compare

Serial

Interface

Decoder

Registers

SCL

SDA

Registers

Alarm

(EEPROM)

(SRAM)

Alarm Regs

(EEPROM)

256K

EEPROM

ARRAY

Watchdog

Timer

Low Voltage

Reset

RESET

*I2C is a Trademark of Philips.

REV 1.1.30 3/24/04

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