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參數(shù)資料
| 型號： | X1205V8ZT1 |
| 廠商： | INTERSIL CORP |
| 元件分類： | XO, clock |
| 英文描述： | 2-Wire RTC Real Time Clock/Calendar |
| 中文描述： | REAL TIME CLOCK, PDSO8 |
| 封裝： | 4.40 MM, ROHS COMPLIANT, PLASTIC, TSSOP-8 |
| 文件頁數(shù)： | 1/22頁 |
| 文件大?。?/td> | 407K |
| 代理商： | X1205V8ZT1 |
REV 1.0.9 8/29/02
Characteristics subject to change without notice.
1 of 22
www.xicor.com
2-Wire
RTC
Real Time Clock/Calendar
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
2-Wire Interface interoperable with I2C*
—400kHz data transfer rate
Low Power CMOS
—1.25μA Operating Current (Typical)
Small Package Options
—8-Lead SOIC and 8-Lead TSSOP
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 X1205 device is a Real Time Clock with clock/
calendar, two polled alarms, 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.
The Real-Time Clock keeps track of time with separate
registers for Hours, Minutes, and Seconds. The
Calendar has separate registers for Date, Month, Year
and Day-of-week. The calendar is correct through
2099, with automatic leap year correction.
X1205
Preliminary Information
BLOCK DIAGRAM
X1
X2
Oscillator
Frequency
Divider
Timer
Calendar
Logic
8
32.768kHz
Control
Registers
1Hz
Time
Keeping
Registers
(SRAM)
Alarm Regs
(EEPROM)
Compare
M
IRQ
Control
Decode
Logic
Alarm
(EEPROM)
SCL
SDA
Serial
Interface
Decoder
Interrupt Enable
Registers
Status
(SRAM)
Alarm
OSC
Compensation
*I2C is a Trademark of Philips.
New Features
Repetitive Alarms &
Temperature Compensation
相關(guān)PDF資料 |
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| X1205 | 2-Wire RTC Real Time Clock/Calendar |
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| X1205S8IZ | 2-Wire RTC Real Time Clock/Calendar |
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