參數(shù)資料
型號(hào)： ISL12022MIBZR5421
廠商： INTERSIL CORP
元件分類(lèi)： 時(shí)鐘/數(shù)據(jù)恢復(fù)及定時(shí)提取
英文描述： REAL TIME CLOCK, PDSO20
封裝： ROHS COMPLIANT, PLASTIC, MS-013AC, SOIC-20
文件頁(yè)數(shù)： 1/29頁(yè)
文件大小： 395K
代理商： ISL12022MIBZR5421
1
ISL12022MR5421
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 registered trademark owned by NXP Semiconductors Netherlands, B.V.
Copyright Intersil Americas Inc. 2010. All Rights Reserved.
All other trademarks mentioned are the property of their respective owners.
Low Power RTC with Battery Backed SRAM,
Integrated ±5ppm Temperature Compensation and
Auto Daylight Saving
ISL12022MR5421
The ISL12022MR5421 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.
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.
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
switchover from VDD to VBAT power, and also from VBAT
to VDD power.
The ISL12022MR5421 has redesign package to increase
Contact and Air Discharge ESD performance.
Related Literature
See AN1549 “Addressing Power Issues in Real Time
Clock Applications”
Features
Embedded 32.768kHz Quartz Crystal in the Package
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
Battery Reseal Function to Extend Battery Shelf
Life
Power Status Brownout Monitor
Time Stamp for Battery Switchover
128 Bytes Battery-Backed User SRAM
I2C-Bus
RoHS Compliant
Applications
Utility Meters
POS Equipment
Printers and Copiers
Digital Cameras
Typical Application Circuit
Performance Curve
GND
NC
GND
NC
GND
NC
VBAT
VDD
GND
IRQ/FOUT
NC
SCL
SDA
ISL12022MR5421
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
SCHOTTKY DIODE
BAT54
BATTERY
3.0V
3.3V
C2
0.1F
C1
0.1F
R1
10k
R2
10k
R3
10k
VDO
SCL
SDA
GND
MCU
INTERFACE
IRQ/FOUT
-5
-4
-3
-2
-1
0
1
2
3
4
5
-40
-20
0
2040
6080
TEMPERATURE (°C)
F
OUT
F
R
EQUENCY
ERROR
(ppm
)
VDD = 2.7V
VBAT = 5.5V
VDD = 3.3V
OSCILLATOR ERROR vs TEMPERATURE
June 4, 2010
FN7576.1
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ISL12022MIBZ-T 功能描述:實(shí)時(shí)時(shí)鐘 REAL TIME CLK & TEMP COMPENSATED CRYSTAL 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(shí)間格式:HH:MM:SS RTC 存儲(chǔ)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(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube
ISL12022MIBZ-T7A 功能描述:IC RTC/CALENDAR TEMP SNSR 20SOIC RoHS:否 類(lèi)別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 實(shí)時(shí)時(shí)鐘 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 類(lèi)型:時(shí)鐘/日歷 特點(diǎn):警報(bào)器，閏年，SRAM 存儲(chǔ)容量:- 時(shí)間格式:HH:MM:SS（12/24 小時(shí)） 數(shù)據(jù)格式:YY-MM-DD-dd 接口:SPI 電源電壓:2 V ~ 5.5 V 電壓 - 電源，電池:- 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:8-WDFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:8-TDFN EP 包裝:管件
ISL12022MIBZ-TR5421 功能描述:實(shí)時(shí)時(shí)鐘 REAL TIME CLK W/MFK IMPROVED ESD AIR 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(shí)間格式:HH:MM:SS RTC 存儲(chǔ)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(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube
ISL12022MR5421 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Low Power RTC with Battery Backed SRAM, Integrated 5ppm
ISL12022M-R5421 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:High-Accuracy RTC Modules, Feature-Rich RTCs
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