廬
X1286
2-Wire鈩?RTC, 256K (32K x 8)
Data Sheet
March 29, 2005
FN8101.0
Intersil Real Time Clock/Calendar/CPU
Supervisor with EEPROM
FEATURES
鈥?Real Time Clock/Calendar
鈥?Tracks time in Hours, Minutes, Seconds and
Hundredths of a Second
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?Battery Switch or Super Cap Input
鈥?32K x 8 Bits of EEPROM
鈥?128-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, 100Hz,
or 32.768kHz)
鈥?Low Power CMOS
鈥?1.25碌A Operating Current (Typical)
鈥?Small Package Options
鈥?8-Lead EIAJ SOIC and 14-Lead TSSOP
鈥?Repetitive Alarms
鈥?Temperature Compensation
APPLICATIONS
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
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
Office 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)
256K
EEPROM
ARRAY
8
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-352-6832
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
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