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CAT1232LPW-T2 PDF预览

CAT1232LPW-T2

更新时间： 2024-01-03 15:32:55
品牌 Logo 应用领域
CATALYST 监视器光电二极管
页数 文件大小 规格书
12页 956K
描述
5V and 3.3V Supply Monitor, Watchdog Timer, Manual Reset, with Active High & Low Resets

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CAT1232LPW-T2 技术参数

是否Rohs认证： 符合生命周期：Transferred
零件包装代码：SOIC包装说明：SOP, SOP16,.4
针数：16Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.53其他特性：RESET THRESHOLD VOLTAGE IS 5V
可调阈值：NO模拟集成电路 - 其他类型：POWER SUPPLY MANAGEMENT CIRCUIT
JESD-30 代码：R-PDSO-G16JESD-609代码：e3
长度：10.31 mm信道数量：1
功能数量：1端子数量：16
最高工作温度：85 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：SOP
封装等效代码：SOP16,.4封装形状：RECTANGULAR
封装形式：SMALL OUTLINE峰值回流温度（摄氏度）：NOT SPECIFIED
电源：1/5.5 V认证状态：Not Qualified
座面最大高度：2.64 mm子类别：Power Management Circuits
最大供电电流 (Isup)：0.05 mA最大供电电压 (Vsup)：5.5 V
最小供电电压 (Vsup)：1 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：Matte Tin (Sn)
端子形式：GULL WING端子节距：1.27 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：7.49 mm

CAT1232LPW-T2 数据手册

 浏览型号CAT1232LPW-T2的Datasheet PDF文件第2页浏览型号CAT1232LPW-T2的Datasheet PDF文件第3页浏览型号CAT1232LPW-T2的Datasheet PDF文件第4页浏览型号CAT1232LPW-T2的Datasheet PDF文件第5页浏览型号CAT1232LPW-T2的Datasheet PDF文件第6页浏览型号CAT1232LPW-T2的Datasheet PDF文件第7页 
CAT1232, CAT1832  
5V and 3.3V Supply Monitor, Watchdog Timer,  
Manual Reset, with Active High & Low Resets  
FEATURES  
DESCRIPTION  
„ Selectable reset voltage tolerance  
— CAT1232LP for 5V supply  
— CAT1832 for 3.3V supply  
The CAT1232LP and CAT1832 microprocessor  
supervisors can halt and restart a “hung-up” or  
“stalled” microprocessor, restart a microprocessor  
after a power failure, and debounce a manual/push-  
button microprocessor reset switch. The devices are  
drop in replacements for the Maxim/Dallas  
Semiconductor DS1232LP and DS1832 supervisors  
„ Selectable watchdog period:  
150ms, 600ms or 1.2s  
„ Two reset outputs  
— Active high, push-pull reset output  
Precision reference and comparator circuits monitor  
the 5V or 3.3V system power supply voltage, VCC.  
During power-up or when the power supply falls  
outside selectable tolerance limits, both the RESET  
— Active low, open-drain reset output  
(CAT1232LP)  
— Active low, push-pull reset output (CAT1832)  
„ Debounced manual push-button reset  
„ Compact SOIC and MSOP packages  
¯¯¯¯¯¯  
and RESET become active. After the power supply  
voltage rises above the RESET threshold voltage, the  
reset signals remain active for a minimum of 250ms,  
allowing the power supply and system processor to  
stabilize. The trip-point tolerance input, TOL, selects  
the trip level tolerance to be either 5% or 10% for the  
CAT1232LP 5V supply and 10% or 20% for the  
CAT1832 3.3V supply.  
For Ordering Information details, see page 11.  
APPLICATIONS  
„ Microprocessor Systems  
„ Portable Equipment  
„ Controllers  
Each device has a push-pull, active HIGH reset  
output. The CAT1232LP also has an open drain,  
active LOW reset output while the CAT1832 also has  
a push-pull, active LOW reset output.  
„ Single Board Computers  
„ Instrumentations  
A debounced manual reset input activates the reset  
outputs and holds them active for a minimum period of  
250ms after being released.  
„ Telecommunications  
Also included is a watchdog timer to reset a  
microprocessor that has stopped due to a software or  
hardware failure. Three watchdog time-out periods are  
¯¯  
selectable: 150ms, 600ms and 1.2s. If the ST input is  
not strobed low before the watchdog time out period  
expires, the reset signals become active for a  
minimum of 250ms.  
FUNCTIONAL DIAGRAM  
V
CC  
RESET  
(CAT1232LP)  
TOL  
Tolerance Selection  
Reference  
+
–
V
CC  
40kΩ  
RESET  
RESET  
PBRST  
TD  
Push Button Debounce  
Watchdog Timebase Selection  
Watchdog Transition Detector  
Reset &  
Watchdog Timer  
(CAT1832)  
ST  
© Catalyst Semiconductor, Inc.  
Characteristics subject to change without notice  
1
Doc. No. MD-3018 Rev. D  
1234567...12

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