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TC1232EPA PDF预览

TC1232EPA

更新时间: 2024-09-17 12:01:55
品牌 Logo 应用领域
美国微芯 - MICROCHIP 电源电路电源管理电路微处理器光电二极管监控
页数 文件大小 规格书
20页 282K
描述
Microprocessor Monitor

TC1232EPA 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:DIP
包装说明:DIP, DIP8,.3针数:8
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01Factory Lead Time:6 weeks
风险等级:1.33Is Samacsys:N
可调阈值:YES模拟集成电路 - 其他类型:POWER SUPPLY MANAGEMENT CIRCUIT
JESD-30 代码:R-PDIP-T8JESD-609代码:e3
长度:9.46 mm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峰值回流温度(摄氏度):NOT APPLICABLE
电源:5 V认证状态:Not Qualified
座面最大高度:4.32 mm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温度等级:INDUSTRIAL
端子面层:Matte Tin (Sn)端子形式:THROUGH-HOLE
端子节距:2.54 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT APPLICABLE宽度:7.62 mm
Base Number Matches:1

TC1232EPA 数据手册

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TC1232  
Microprocessor Monitor  
Features  
General Description  
• Precision Voltage Monitor  
The TC1232 is a fully-integrated processor supervisor  
that provides three important functions to safeguard  
processor sanity: precision power on/off reset control,  
watchdog timer and external reset override.  
- Adjustable +4.5V or +4.75V  
• Reset Pulse Width – 250 msec minimum  
• No External Components  
On power-up, the TC1232 holds the processor in the  
reset state for a minimum of 250 msec after VCC is  
within tolerance to ensure a stable system start-up.  
• Adjustable Watchdog Timer  
- 150 msec, 600 msec or 1.2 sec  
• Operating Voltage 4.0V to 5.5V  
Microprocessor sanity is monitored by the onboard  
watchdog circuit. The microprocessor must provide a  
periodic low-going signal on the ST input. Should the  
processor fail to supply this signal within the selected  
time-out period (150 msec, 600 msec or 1200 msec),  
an out-of-control processor is indicated and the  
TC1232 issues a processor reset as a result.  
• Debounced Manual Reset Input for External  
Override  
Block Diagram  
VCC  
RST  
RST  
Tolerance  
Select  
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.  
+
TOL  
(5% or 10%)  
+
+
VREF  
The TC1232 is packaged in a space-saving 8-Pin PDIP  
or SOIC package, a 16-Pin SOIC (wide) package and  
requires no external components.  
Reset  
Generator  
PB RST  
TD  
Debounce  
Watchdog  
Timebase  
Select  
Watchdog  
Timer  
ST  
Package Types  
8-Pin PDIP  
8-Pin SOIC  
16-Pin SOIC (Wide)  
NC  
PB RST  
NC  
1
2
3
4
5
6
7
8
16 NC  
V
V
8
PB RST  
TD  
1
2
3
4
8
7
6
5
PB RST  
TD  
1
2
3
4
CC  
CC  
VCC  
15  
ST  
7
6
5
ST  
14 NC  
13 ST  
12 NC  
11 RST  
10 NC  
C1232  
TC1232  
TOL  
RST  
RST  
TOL  
RST  
RST  
TD  
TC1232  
GND  
NC  
GND  
TOL  
NC  
GND  
9
RST  
Device Features  
RST pin  
RST pin  
Minimum  
Reset  
Active Time  
(ms)  
WDI Input  
Typical  
Timeouts (ms)  
Trip Points  
Active  
(Max)  
MR  
Input  
Device  
Type  
Pull-up Active  
Resistor Level  
Type  
Level  
TC1232 Open-drain External Low  
Push-pull  
High  
4.75V  
or 4.5V  
250  
150, 600 or  
1200  
Yes  
2002-2012 Microchip Technology Inc.  
Preliminary  
DS21370D-page 1  

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