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CAT1021RA-42TE13

更新时间： 2024-11-23 18:11:59
品牌 Logo 应用领域
CATALYST 光电二极管
页数 文件大小 规格书
17页 107K
描述
Power Supply Management Circuit, Fixed, 1 Channel, CMOS, PDSO8, MSOP-8

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CAT1021RA-42TE13 技术参数

是否Rohs认证： 不符合生命周期：Transferred
零件包装代码：MSOP包装说明：TSSOP,
针数：8Reach Compliance Code：unknown
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.07可调阈值：NO
模拟集成电路 - 其他类型：POWER SUPPLY MANAGEMENT CIRCUITJESD-30 代码：R-PDSO-G8
JESD-609代码：e0湿度敏感等级：1
信道数量：1功能数量：1
端子数量：8最高工作温度：105 °C
最低工作温度：-40 °C封装主体材料：PLASTIC/EPOXY
封装代码：TSSOP封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH峰值回流温度（摄氏度）：240
认证状态：Not Qualified座面最大高度：1.1 mm
最大供电电压 (Vsup)：5.5 V最小供电电压 (Vsup)：2.7 V
标称供电电压 (Vsup)：5 V表面贴装：YES
技术：CMOS温度等级：INDUSTRIAL
端子面层：TIN LEAD端子形式：GULL WING
端子节距：0.65 mm端子位置：DUAL
处于峰值回流温度下的最长时间：30宽度：3 mm
Base Number Matches：1

CAT1021RA-42TE13 数据手册

 浏览型号CAT1021RA-42TE13的Datasheet PDF文件第2页浏览型号CAT1021RA-42TE13的Datasheet PDF文件第3页浏览型号CAT1021RA-42TE13的Datasheet PDF文件第4页浏览型号CAT1021RA-42TE13的Datasheet PDF文件第5页浏览型号CAT1021RA-42TE13的Datasheet PDF文件第6页浏览型号CAT1021RA-42TE13的Datasheet PDF文件第7页 
Preliminary Information  
CAT1021, CAT1022, CAT1023  
Supervisory Circuits with I2C Serial 2K CMOS EEPROM, Manual Reset  
and Watchdog Timer  
FEATURES  
■ Precision power supply voltage monitor  
— 5V, 3.3V and 3V systems  
— Five threshold voltage options  
■ Watchdog timer  
■ Built-in inadvertent write protection  
— WP pin (CAT1021)  
■ 1,000,000 Program/Erase cycles  
■ Manual reset input  
■ Active high or low reset  
— Valid reset guaranteed at VCC=1V  
■ 400kHz I2C bus  
■ 100 year data retention  
■ 8-pin DIP, SOIC, TSSOP, TDFN (MSOP  
(3x4.9mm) & 3x3mm foot prints) or MSOP  
packages  
■ 2.7V to 5.5V operation  
— TDFN max height is 0.8mm  
■ Low power CMOS technology  
■ 16-Byte page write buffer  
■ Automotive, extended automotive and  
industrial temperature ranges  
DESCRIPTION  
The power supply monitor and reset circuit protect memory  
and system controllers during power up/down and against  
brownout conditions. Five reset threshold voltages support  
5V, 3.3V and 3V systems. If power supply voltages are out  
of tolerance reset signals become active, preventing the  
systemmicrocontroller, ASICorperipheralsfromoperating.  
Reset signals become inactive typically 200 ms after the  
supply voltage exceeds the reset threshold level. With both  
activehighandlowresetsignals,interfacetomicrocontrollers  
and other ICs is simple. In addition, the RESET pin or a  
separate input, MR, can be used as an input for push-button  
manual reset capability.  
The CAT1021, CAT1022 and CAT1023 are complete  
memory and supervisory solutions for microcontroller-  
based systems. A 2kbit serial EEPROM memory and a  
system power supervisor with brown-out protection are  
integrated together in low power CMOS technology.  
Memory interface is via a 400kHz I2C bus.  
The CAT1021 and CAT1023 provide a precision VCC  
sense circuit and two open drain outputs: one (RESET)  
drives high and the other (RESET) drives low whenever  
VCCfallsbelowtheresetthresholdvoltage.TheCAT1021  
also has a Write Protect input (WP). Write operations  
are disabled if WP is connected to a logic high.  
Theon-chip, 2kEEPROMmemoryfeaturesa16-bytepage.  
In addition, hardware data protection is provided by a VCC  
sense circuit that prevents writes to memory whenever VCC  
falls below the reset threshold or until VCC reaches the reset  
threshold during power up.  
The CAT1022 has a RESET output and does not have  
a Write Protect input.  
Allsupervisorshavea1.6secondwatchdogtimercircuit  
that resets a system to a known state if software or a  
hardware glitch halts or “hangs” the system. For the  
CAT1021 and CAT1022, the watchdog timer monitors  
theSDAsignal.TheCAT1023hasaseparatewatchdog  
timer interrupt input pin, WDI.  
Availablepackagesincludean8-pinDIPand surfacemount  
8-pin SO, 8-pin TSSOP, 8-pin TDFN and 8-pin MSOP  
packages.TheTDFNpackagethicknessis0.8mmmaximum.  
TDFN footprint options are 3x3mm or 3x4.9mm (MSOP pad  
layout).  
© 2003 by Catalyst Semiconductor, Inc.  
Doc No. 3009, Rev. E  
Characteristics subject to change without notice  
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