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參數資料
| 型號： | ISL12028AIB27Z-T |
| 廠商： | INTERSIL CORP |
| 元件分類： | 時鐘/數據恢復及定時提取 |
| 英文描述： | REAL TIME CLOCK, PDSO14 |
| 封裝： | ROHS COMPLIANT, PLASTIC, MS-012AB, SOIC-14 |
| 文件頁數： | 1/29頁 |
| 文件大小： | 579K |
| 代理商： | ISL12028AIB27Z-T |
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ISL12028, ISL12028A
Real Time Clock/Calendar with I2C Bus
and EEPROM
The ISL12028 device is a low power real time clock with
clock/calendar, power-fail indicator, clock output and crystal
compensation, two periodic or polled alarms (CMOS output),
intelligent battery backup switching, CPU Supervisor,
integrated 512x8-bit EEPROM configured in 16 bytes per
page.
The oscillator uses an external, low-cost 32.768kHz crystal.
The real-time clock tracks time with separate registers for
hours, minutes and seconds. The device has calendar
registers for date, month, year and day of the week. The
calendar is accurate through 2099, with automatic leap year
correction.
The ISL12028 and ISL12028A Power Control Settings are
different. The ISL12028 uses the Legacy Mode Setting, and
the ISL12028A uses the Standard Mode Setting.
Applications that have VBAT > VDD will require only the
ISL12028A. Please refer to “Power Control Operation” on
page 14 for more details. Also, please refer to “I2C
on page 25 for important details.
Pinout
ISL12028, ISL12028A
(14 LD TSSOP, SOIC)
TOP VIEW
Features
Real Time Clock/Calendar
- Tracks time in Hours, Minutes and Seconds
- Day of the Week, Day, Month and Year
- 3 Selectable Frequency Outputs
Two Non-Volatile Alarms
- Settable on the Second, Minute, Hour, Day of the Week,
Day, or Month
- Repeat Mode (Periodic Interrupts)
Automatic Backup to Battery or SuperCap
- Power Failure Detection
- 800nA Battery Supply Current
On-Chip Oscillator Compensation
- Internal Feedback Resistor and Compensation
Capacitors
- 64 Position Digitally Controlled Trim Capacitor
- 6 Digital Frequency Adjustment Settings to ±30ppm
512x8 Bits of EEPROM:
- 16-Byte Page Write Mode (32 total pages)
- 8 Modes of BlockLock Protection
- Single Byte Write Capability
- Data Retention: 50 years
- Endurance: >2,000,000 Cycles Per Byte
CPU Supervisor Functions:
- Power On Reset, Low Voltage Sense
- Watchdog Timer (0.25s, 0.75s and 1.75s)
I2C Interface
- 400kHz Data Transfer Rate
14 Ld SOIC and 14 Ld TSSOP Packages
Pb-Free (RoHS Compliant)
Applications
Utility Meters
HVAC Equipment
Audio/Video Components
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
NC = No internal connection
NC
X1
X2
1
2
3
4
13
14
12
11
5
6
7
10
9
8
RESET
GND
VDD
VBAT
IRQ/FOUT
NC
SCL
NC
SDA
NC
Data Sheet
FN8233.8
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
| Intersil (and design) is a registered trademark of Intersil Americas Inc.
I2C Bus is a trademark owned by NXP Semiconductors Netherlands, B.V.
BlockLock is a trademark of Intersil Corporation or one of its subsidiaries. Copyright Intersil Americas Inc. 2005, 2006, 2008, 2010.
All Rights Reserved. All other trademarks mentioned are the property of their respective owners.
August 9, 2010
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相關代理商/技術參數 |
參數描述 |
|---|---|
| ISL12028AIV27Z | 功能描述:實時時鐘 REAL TIME CLKRTC W/ EPROM 2 63VSET 14 RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| ISL12028AIV27Z-T | 功能描述:實時時鐘 REAL TIME CLKRTC W/ EPROM 2 63VSET 14 RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| ISL12028IB27AZ | 功能描述:實時時鐘 REAL TIME CLKRTC W/ EPROM 2 92VSET 14 RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| ISL12028IB27AZ-T | 功能描述:實時時鐘 REAL TIME CLKRTC W/ EPROM 2 92VSET 14 RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| ISL12028IB27Z | 功能描述:實時時鐘 REAL TIME CLKRTC W/ EPROM 2 7VSET 14 RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
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