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AAT3532IAS-T1 参数 Datasheet PDF下载

AAT3532IAS-T1图片预览
型号: AAT3532IAS-T1
PDF下载: 下载PDF文件 查看货源
内容描述: 微功耗™微处理器复位电路 [MicroPower™ Microprocessor Reset Circuit]
分类和应用: 微处理器复位电路
文件页数/大小: 8 页 / 99 K
品牌: AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
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AAT3532
MicroPower™ Microprocessor Reset Circuit
General Description
The AAT3532 PowerManager is a member of
AnalogicTech’s Total Power Management IC™
(TPMIC™) product family. It is a fully integrated
device for monitoring microprocessor activity,
external reset, and power supply conditions. The
device holds the microprocessor in a reset condi-
tion for a minimum of 250ms while V
CC
is estab-
lished to ensure correct system start-up. A manual
reset can be initiated via a de-bounced input pin.
As an additional level of protection, the AAT3532
includes a watchdog timer which requires a period-
ic strobe input from the microprocessor to ensure
correct operation. The AAT3532 has a programma-
ble watchdog timer and voltage tolerance level.
The quiescent supply current is extremely low, typ-
ically 23µA.
The AAT3532 is available in a Pb-free, 8-pin SOP
package and is specified over the -40°C to +85°C
temperature range.
Features
PowerManager
Adjustable 4.5V or 4.75V Voltage Monitor
250ms (min) Reset Pulse Width
Low Quiescent Current: Typically 23µA
Adjustable Watchdog Timer (150ms, 600ms,
or 1200ms)
De-bounced Manual Reset Input
Operates Down to 20ns Strobe Input Pulse
Width
No External Components
Temperature Range: -40° to +85°C
Standard 8-Pin SOP Package
Pin Compatible with MAX1232
Applications
Automotive
Computers
Controllers
Embedded Systems
Intelligent Instrumentation
Telecom Equipment
Typical Application
V
DD
VCC
PBRST
RST
RESET
INPUT
V
DD
AAT3532
TD
RST
µP
I/O
ST
TOL
GND
3532.2005.12.1.2
1