LTC1232 Microprocessor Supervisory Circuit

The LTC™1232 provides power supply monitoring, watchdog timing and external reset for microprocessor systems. A precise internal voltage reference and comparator circuit monitor the power supply line. When an out-of-tolerance condition occurs, the reset outputs are forced to active states. The RST output is guaranteed to remain logic low even with VCC as low as 1V.

The LTC1232 has an internal watchdog timer which forces the reset outputs to active states when the Strobe input is not forced low prior to a preset time-out period. The watchdog timing can be set to operate on time-out periods of typically 150ms, 600ms or 1.2 seconds.

The LTC1232 performs push-button reset control. The LTC1232 debounces the push-button input and guarantees an active reset pulse width of 250ms minimum

产品特点 Features

Guaranteed Reset Assertion at Vcc=1V
8-Pin SOIC Plastic Package
2.0mA Maximum Supply Current
4.62V/4.37V Precision Voltage Monitor
Power OK/Reset Time Delay: 600ms
Minimum External Component Count
Superior Upgrade for DS1232

参数

应用

Critical µP Power Monitoring
Intelligent Instruments
Computers and Controllers
Automotive Systems

典型应用图

LTC1232 订购信息和价格参考Package Variations and Pricing

器件型号	封装	引脚	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量) *
LTC1232CN8	PDIP	8	C	$2.15	$1.75
LTC1232CN8#PBF	PDIP	8	C	$2.15	$1.75
LTC1232CS8	SO	8	C	$2.40	$1.90
LTC1232CS8#PBF	SO	8	C	$2.40	$1.90
LTC1232CS8#TR	SO	8	C		$1.96
LTC1232CS8#TRPBF	SO	8	C		$1.96
LTC1232IS8	SO	8	I	$2.80	$2.30
LTC1232IS8#PBF	SO	8	I	$2.80	$2.30
LTC1232IS8#TR	SO	8	I		$2.36
LTC1232IS8#TRPBF	SO	8	I		$2.36

LTC1232 数据手册及相关资料下载

数据手册(英文) : LTC1232 - Microprocessor Supervisory Circuit.PDF
可靠性数据 : R163 Reliability Data .PDF
产品选型卡 : Voltage Monitors & Supervisors Quick Guide.PDF