DataSheetWiki

X1227 Datasheet دیتاشیت PDF دانلود

دیتاشیت - Xicor - Real Time Clock/Calendar/CPU Supervisor with EEPROM

شماره قطعه X1227
شرح مفصل Real Time Clock/Calendar/CPU Supervisor with EEPROM
تولید کننده Xicor 
آرم Xicor 


1 Page

		

No Preview Available !

X1227 شرح
New Features
Repetitive Alarms &
Temperature Compensation
4K (512 x 8)
X1227
2-WireRTC
Real Time Clock/Calendar/CPU Supervisor 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
• CPU Supervisor Functions
— Power On Reset, Low Voltage Sense
— Watchdog Timer (SW Selectable: 0.25s, 0.75s,
1.75s, off)
• Battery Switch or Super Cap Input
• 4K 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 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 X1227 device is a Real Time Clock with clock/
calendar, two polled alarms with integrated 512x8
EEPROM, oscillator compensation, CPU Supervisor
(POR/LVS and WDT) 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.
BLOCK DIAGRAM
32.768kHz
X1
X2
OSC
Compensation
Oscillator
Frequency 1Hz
Divider
Timer
Calendar
Logic
Time
Keeping
Registers
(SRAM)
Battery
Switch
Circuitry
VCC
VBACK
SCL
SDA
Serial
Interface
Decoder
RESET
Control
Decode
Logic
8
Control/
Registers
(EEPROM)
Status
Registers
(SRAM)
Alarm
Watchdog
Timer
Low Voltage
Reset
Compare
Alarm Regs
(EEPROM)
4K
EEPROM
ARRAY
*I2C is a Trademark of Philips.
REV 1.1.20 1/13/03
www.xicor.com
Characteristics subject to change without notice. 1 of 28

قانون اساسیصفحه 28
دانلود [ X1227 دیتاشیت ]



دیتاشیت توصیه

شماره قطعه شرح مفصل تولید کنندگان
X1226 Real Time Clock/Calendar with EEPROM Xicor
Xicor
X1226 Real Time Clock/Calendar Intersil Corporation
Intersil Corporation
X1227 Real Time Clock/Calendar/CPU Supervisor with EEPROM Xicor
Xicor
X1227 RTC Real TimeClock/Calendar/ CPU Supervisor Intersil Corporation
Intersil Corporation

US18650VTC5A

Lithium-Ion Battery

Sony
Sony
TSPC106

PCI Bus Bridge Memory Controller

ATMEL
ATMEL
TP9380

NPN SILICON RF POWER TRANSISTOR

Advanced Semiconductor
Advanced Semiconductor


www.DataSheetWiki.com    |   2018   |   تماس با ما  |   جستجو