參數(shù)資料
型號(hào): TC1232COA
廠商: TelCom Semiconductor, Inc.
英文描述: MICROPROCESSOR MONITOR
中文描述: 微處理器監(jiān)控
文件頁(yè)數(shù): 1/6頁(yè)
文件大?。?/td> 65K
代理商: TC1232COA
5-19
TELCOM SEMICONDUCTOR, INC.
7
6
5
4
3
1
2
8
PRELIMINARY INFORMATION
TC1232
FEATURES
I
Precision Voltage
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
I
I
I
I
MICROPROCESSOR MONITOR
APPLICATIONS
I
I
I
I
I
Computers
Controllers
Intelligent Instruments
Automotive Systems
Critical
μ
P Power Monitoring
FUNCTIONAL BLOCK DIAGRAM
V
CC
TC1232
+
5%/10%
TOLERANCE
SELECT
TOL
DEBOUNCE
WATCHDOG
TIMEBASE
SELECT
PB RST
TD
GND
REF
WATCHDOG
TIMER
RESET
GENERATOR
RST
RST
ST
+
ORDERING INFORMATION
Part No.
Package
Temp. Range
0
°
C to +70
°
C
0
°
C to +70
°
C
0
°
C to +70
°
C
– 40
°
C to +85
°
C
– 40
°
C to +85
°
C
– 40
°
C to +85
°
C
TC1232COA
TC1232COE
TC1232CPA
TC1232EOA
TC1232EOE
TC1232EPA
8-Pin SOIC
16-Pin SOIC (Wide)
8-Pin PDIP
8-Pin SOIC
16-Pin SOIC (Wide)
8-Pin PDIP
TC1232-4 11/6/96
GENERAL DESCRIPTION
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 V
CC
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-
cessor is indicated and the TC1232 issues a processor reset
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.
The TC1232 is packaged in a space-saving 8-pin plastic
DIP or SOIC package and requires no external components.
相關(guān)PDF資料
PDF描述
TC1232CPA MICROPROCESSOR MONITOR
TC1232EPA MICROPROCESSOR MONITOR
TC1232EOA MICROPROCESSOR MONITOR
TC1232EOE MICROPROCESSOR MONITOR
TC1232COE MICROPROCESSOR MONITOR
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TC1232COA 制造商:Microchip Technology Inc 功能描述:MICROPROCESSOR MONITOR SMD 1232
TC1232COA713 功能描述:監(jiān)控電路 Microprocessor Montr RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)位延遲(典型值):10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
TC1232COE 功能描述:監(jiān)控電路 Microprocessor Montr RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)位延遲(典型值):10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
TC1232COE713 功能描述:監(jiān)控電路 Microprocessor Montr RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)位延遲(典型值):10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
TC1232CPA 功能描述:監(jiān)控電路 Microprocessor Montr RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)位延遲(典型值):10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel