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TC1232EPA PDF预览

TC1232EPA

更新时间: 2024-11-22 22:42:27
品牌 Logo 应用领域
TELCOM 微处理器光电二极管监控监视器
页数 文件大小 规格书
6页 67K
描述
MICROPROCESSOR MONITOR

TC1232EPA 技术参数

是否Rohs认证: 不符合生命周期:Transferred
包装说明:DIP, DIP8,.3Reach Compliance Code:unknown
风险等级:5.73Is Samacsys:N
其他特性:PUSHBUTTON RESET可调阈值:NO
模拟集成电路 - 其他类型:POWER SUPPLY MANAGEMENT CIRCUITJESD-30 代码:R-PDIP-T8
JESD-609代码:e0信道数量:1
功能数量:1端子数量:8
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:DIP
封装等效代码:DIP8,.3封装形状:RECTANGULAR
封装形式:IN-LINE电源:5 V
认证状态:Not Qualified子类别:Power Management Circuits
最大供电电流 (Isup):0.2 mA最大供电电压 (Vsup):5.5 V
最小供电电压 (Vsup):4.5 V标称供电电压 (Vsup):5 V
表面贴装:NO技术:CMOS
温度等级:INDUSTRIAL端子面层:Tin/Lead (Sn/Pb)
端子形式:THROUGH-HOLE端子节距:2.54 mm
端子位置:DUAL阈值电压标称:+4.37/4.62V
Base Number Matches:1

TC1232EPA 数据手册

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5
TC1232  
MICROPROCESSOR MONITOR  
FEATURES  
GENERAL DESCRIPTION  
Precision Voltage  
The TC1232 is a fully-integrated processor supervisor.  
It provides three important functions to safeguard processor  
sanity: precision power on/off reset control, watchdog timer  
and external reset override.  
On power-up, the TC1232 holds the processor in the  
reset state for a minimum of 250msec after VCC is within  
tolerance to ensure a stable system start-up.  
Microprocessor sanity is monitored by the on-board  
watchdog circuit. The microprocessor must provide a peri-  
odic low-going signal on the ST input. Should the processor  
fail to supply this signal within the selected time-out period  
(150msec, 600msec or 1200msec), an out-of-control pro-  
cessorisindicatedandtheTC1232issuesaprocessorreset  
as a result.  
The outputs of the TC1232 are immediately driven  
active when the PB input is brought low by an external push-  
button switch or other electronic signal. When connected to  
a push-button switch, the TC1232 provides contact  
debounce.  
Monitor ....................... Adjustable +4.5V or +4.75V  
Reset Pulse Width ............................. 250msec Min  
No External Components  
Adjustable Watchdog  
Timer ........................ 150msec, 600msec or 1.2sec  
Debounced Manual Reset Input for External  
Override  
APPLICATIONS  
Computers  
Controllers  
Intelligent Instruments  
Automotive Systems  
Critical µP Power Monitoring  
ORDERING INFORMATION  
Part No.  
Package  
Temp. Range  
TheTC1232ispackagedinaspace-saving8-pinplastic  
DIPorSOICpackageandrequiresnoexternalcomponents.  
TC1232COA  
TC1232COE  
TC1232CPA  
TC1232EOA  
TC1232EOE  
TC1232EPA  
8-Pin SOIC  
16-Pin SOIC (Wide)  
8-Pin PDIP  
8-Pin SOIC  
16-Pin SOIC (Wide) – 40°C to +85°C  
0°C to +70°C  
0°C to +70°C  
0°C to +70°C  
– 40°C to +85°C  
8-Pin PDIP  
– 40°C to +85°C  
FUNCTIONAL BLOCK DIAGRAM  
RST  
VCC  
+
5%/10%  
TOLERANCE  
SELECT  
RESET  
GENERATOR  
TOL  
+
RST  
REF  
PB RST  
TC1232  
DEBOUNCE  
ST  
TD  
WATCHDOG  
TIMEBASE  
SELECT  
WATCHDOG  
TIMER  
GND  
TC1232-4 11/6/96  
TELCOM SEMICONDUCTOR, INC.  
5-19  

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