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X1286 데이터시트 PDF




Intersil Corporation에서 제조한 전자 부품 X1286은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

PDF 형식의 X1286 자료 제공

부품번호 X1286 기능
기능 Intersil Real Time Clock/Calendar/CPU Supervisor with EEPROM X1286
제조업체 Intersil Corporation
로고 Intersil Corporation 로고


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X1286 데이터시트, 핀배열, 회로
New Features
Repetitive Alarms &
Temperature Compensation
2-Wire™ RTC, 256K (32K x 8)
®
Intersil Real Time Clock/Calendar/CPU Supervisor with EEPROM X1286
FEATURES
• Real Time Clock/Calendar
— Tracks time in Hours, Minutes, Seconds and Hun-
dredths of a Second
— 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
• 32K x 8 Bits of EEPROM
— 128-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
• Frequency Output (SW Selectable: Off, 1Hz, 100Hz,
or 32.768kHz)
• Low Power CMOS
— 1.25µA Operating Current (Typical)
• Small Package Options
— 8-Lead EIAJ SOIC and 14-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
BLOCK DIAGRAM
32.768kHz
X1
X2
PHZ/IRQ
Select
SCL
SDA
Serial
Interface
Decoder
Control
Decode
Logic
8
OSC
Compensation
Oscillator
Frequency 1Hz
Divider
Timer
Calendar
Logic
Control/
Registers
(EEPROM)
Status
Registers
(SRAM)
Alarm
Time
Keeping
Registers
(SRAM)
Compare
Alarm Regs
(EEPROM)
256K
EEPROM
ARRAY
*I2C is a Trademark of Philips.
REV 1.1 7/8/04
www.intersil.com
Battery
Switch
Circuitry
VCC
VBACK
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X1286 pdf, 반도체, 판매, 대치품
X1286
ABSOLUTE MAXIMUM RATINGS
Temperature Under Bias ................... -65°C to +135°C
Storage Temperature ........................ -65°C to +150°C
Voltage on VCC, VBACK and PHZ/IRQ
pin (respect to ground) ............................-0.5V to 7.0V
Voltage on SCL, SDA, X1 and X2
pin (respect to ground) ............... -0.5V to 7.0V or 0.5V
above VCC or VBACK (whichever is higher)
DC Output Current .............................................. 5 mA
Lead Temperature (Soldering, 10 sec) ...............300°C
Stresses above those listed under “Absolute Maximum
Ratings” may cause permanent damage to the device.
This is a stress rating only and the functional operation
of the device at these or any other conditions above
those indicated in the operational sections of this spec-
ification is not implied. Exposure to absolute maximum
rating conditions for extended periods may affect
device reliability.
DC OPERATING CHARACTERISTICS (Temperature = -40°C to +85°C, unless otherwise stated.)
Symbol
VCC
VBACK
VCB
VBC
Parameter
Main Power Supply
Backup Power Supply
Switch to Backup Supply
Switch to Main Supply
Conditions
Min
Typ
Max
Unit
2.7 5.5 V
1.8 5.5 V
VBACK -0.2
VBACK
VBACK -0.1
VBACK +0.2
V
V
Notes
OPERATING CHARACTERISTICS
Symbol
Parameter
ICC1
Read Active Supply Cur-
rent
ICC2
Program Supply Current
(nonvolatile)
ICC3
Main Timekeeping
Current
IBACK Timekeeping Current
Conditions
VCC = 2.7V
VCC = 5.0V
VCC = 2.7V
VCC = 5.0V
VCC = 2.7V
VCC = 5.0V
VBACK = 1.8V
VBACK = 3.3V
ILI Input Leakage Current
ILO Output Leakage Current
VIL Input LOW Voltage
Min
-0.5
VIH
VHYS
VOL1
VOL2
VOH2
Input HIGH Voltage
Schmitt Trigger Input
Hysteresis
Output LOW Voltage for
SDA
Output LOW Voltage for
PHZ/IRQ
Output HIGH Voltage for
PHZ/IRQ
VCC related level
VCC = 2.7V
VCC = 5.5V
VCC = 2.7V
VCC = 5.5V
VCC = 2.7V
VCC = 5.5V
VCC x 0.7 or
VBACK x 0.7
.05 x VCC or
.05 x VBACK
VCC x 0.7
VCC x 0.7
Typ
1.25
1.5
Max
400
800
2.5
3.0
10
20
10
10
VCC x 0.2 or
VBACK x 0.2
VCC + 0.5 or
VBACK + 0.5
Unit
µA
µA
mA
mA
µA
µA
µA
µA
µA
µA
V
V
V
Notes
1, 5, 7, 14
2, 5, 7, 14
3, 7, 8, 14, 15
3, 6, 9, 14, 15
“See Perfor-
mance Data”
10
10
13
13
13
0.4
0.4
VCC x 0.3
VCC x 0.3
V
V
V
11
11
12
REV 1.1 7/8/04
www.intersil.com
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X1286 전자부품, 판매, 대치품
X1286
Write Cycle Timing
SCL
SDA
8th Bit of Last Byte
ACK
Stop
Condition
tWC
Start
Condition
Power Up Timing
Symbol
Parameter
Min.
Typ.(2)
Max.
Units
tPUR(1)
tPUW(1)
Time from Power Up to Read
Time from Power Up to Write
1 ms
5 ms
Notes: (1) Delays are measured from the time VCC is stable until the specified operation can be initiated. These parameters are not 100%
tested. VCC slew rate should be between 0.2mV/µsec and 50mV/µsec.
(2) Typical values are for TA = 25°C and VCC = 5.0V
Nonvolatile Write Cycle Timing
Symbol
Parameter
Min.
Typ.(1)
Max.
Units
tWC(1)
Write Cycle Time
5 10 ms
Note: (1) tWC is the time from a valid stop condition at the end of a write sequence to the end of the self-timed internal nonvolatile write cycle.
It is the minimum cycle time to be allowed for any nonvolatile write by the user, unless Acknowledge Polling is used.
REV 1.1 7/8/04
www.intersil.com
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