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ISL12022MIBZ-T PDF预览

ISL12022MIBZ-T

更新时间： 2024-10-02 05:39:35
品牌 Logo 应用领域
英特矽尔 - INTERSIL 电池外围集成电路温度补偿静态存储器光电二极管时钟
页数 文件大小 规格书
31页 614K
描述
Low Power RTC with Battery Backed SRAM,Integrated ±5ppm Temperature Compensation and Auto Daylight Saving

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ISL12022MIBZ-T 数据手册

 浏览型号ISL12022MIBZ-T的Datasheet PDF文件第2页浏览型号ISL12022MIBZ-T的Datasheet PDF文件第3页浏览型号ISL12022MIBZ-T的Datasheet PDF文件第4页浏览型号ISL12022MIBZ-T的Datasheet PDF文件第5页浏览型号ISL12022MIBZ-T的Datasheet PDF文件第6页浏览型号ISL12022MIBZ-T的Datasheet PDF文件第7页 
Low Power RTC with Battery Backed SRAM,  
Integrated ±5ppm Temperature Compensation and  
Auto Daylight Saving  
ISL12022M  
Features  
• Embedded 32.768kHz Quartz Crystal in the Package  
The ISL12022M device is a low power real time clock  
(RTC) with an embedded temperature sensor and  
crystal. Device functions include oscillator compensation,  
clock/calendar, power fail and low battery monitors,  
brownout indicator, one-time, periodic or polled alarms,  
intelligent battery backup switching, Battery Reseal™  
function and 128 bytes of battery-backed user SRAM.  
The device is offered in a 20 Ld SOIC module that  
contains the RTC and an embedded 32.768kHz quartz  
crystal. The calibrated oscillator provides less than  
±5ppm drift over the full -40°C to +85°C temperature  
range.  
• 20 Ld SOIC Package (for DFN version, refer to the  
ISL12020M)  
• Calendar  
• On-chip Oscillator Temperature Compensation  
• 10-bit Digital Temperature Sensor Output  
• 15 Selectable Frequency Outputs  
• Interrupt for Alarm or 15 Selectable Frequency  
Outputs  
• Automatic Backup to Battery or Supercapacitor  
• VDD and Battery Status Monitors  
The RTC tracks time with separate registers for hours,  
minutes, and seconds. The calendar registers track date,  
month, year and day of the week and are accurate  
through 2099, with automatic leap year correction.  
• Battery Reseal™ Function to Extend Battery Shelf  
Life  
• Power Status Brownout Monitor  
• Time Stamp for Battery Switchover  
• 128 Bytes Battery-Backed User SRAM  
Daylight Savings time adjustment is done automatically,  
using parameters entered by the user. Power fail and  
battery monitors offer user-selectable trip levels. The  
time stamp function records the time and date of  
2
• I C-Bus™  
• RoHS Compliant  
switchover from V  
to V  
power, and also from V  
DD  
BAT  
BAT  
to V  
DD  
power.  
Applications*(see page 30)  
• Utility Meters  
Related Literature*(see page 30)  
• See AN1549 “Addressing Power Issues in Real Time  
Clock Applications”  
• POS Equipment  
• Printers and Copiers  
• Digital Cameras  
Typical Application Circuit  
Performance Curve  
OSCILLATOR ERROR vs TEMPERATURE  
5
1
20  
19  
18  
17  
16  
15  
14  
13  
12  
11  
NC  
NC  
NC  
4
3
2
1
2
NC  
3
NC  
NC  
4
3.3V  
NC  
NC  
5
NC  
NC  
C1  
0.1µF  
SCHOTTKY DIODE  
BAT54  
6
R1  
R2  
R3  
V = 5.5V  
BAT  
GND  
VBAT  
GND  
VDD  
10k 10k 10k  
0
-1  
-2  
-3  
-4  
-5  
7
BATTERY  
3.0V  
C2  
8
V
= 2.7V  
DD  
60  
GND IRQ/FOUT  
VDD  
SCL  
0.1µF  
9
MCU  
NC  
NC  
SCL  
INTERFACE  
10  
V
= 3.3V  
SDA  
SDA  
GND  
DD  
ISL12022M  
IRQ/FOUT  
-40  
-20  
0
20  
40  
80  
TEMPERATURE (°C)  
June 4, 2010  
FN6668.7  
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.  
1
2
I C Bus is a registered trademark owned by NXP Semiconductors Netherlands, B.V.  
Copyright Intersil Americas Inc. 2008, 2009, 2010. All Rights Reserved.  
All other trademarks mentioned are the property of their respective owners.  
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ISL12022MIBZ-T 替代型号

型号 品牌 替代类型 描述 数据表
ISL12022MIBZ-TR5421 INTERSIL

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