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參數(shù)資料
| 型號(hào)： | LTC699 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Microprocessor Supervisory Circuit |
| 中文描述： | 微處理器監(jiān)控電路 |
| 文件頁數(shù)： | 1/4頁 |
| 文件大?。?/td> | 156K |
| 代理商： | LTC699 |
1
LTC699
I
GuaranteedReset Assertion at V
CC
= 1V
I
1.5mA Maximum Supply Current
I
SO-8 Packaging
I
4.65V Precision Voltage Monitor
I
Power OK/Reset Time Delay: 200ms
I
Minimum External Component Count
I
Performance Specified Over Temperature
I
Superior Upgrade for MAX699
The LTC699 provides power supply monitoring for
microprocessor-based systems. The features include mi-
croprocessor reset and watchdog timing. Precise internal
voltage reference and comparator circuit monitor the
power supply line. When an out-of-tolerance condition
occurs, the RESET output is forced to active low. In
addition, the RESET output is guaranteed to remain logic
low even with V
CC
as low as 1V.
An internal watchdog timer is also available, which forces
the RESET output to active low when the watchdog input
is not toggled prior to the time-out period of 1.6 seconds.
The LTC699 is offered in DIP and surface mount packages.
D
U
ESCRIPTIO
S
FEATURE
Microprocessor
Supervisory Circuit
U
S
A
O
PPLICATI
I
Critical
μ
P Power Monitoring
I
Intelligent Instruments
I
Computers and Controllers
I
Automotive Systems
U
A
O
PPLICATI
TYPICAL
W
IAGRA
BLOCK
0.1μF
μP POWER
I/O LINE
μP RESET
μP
SYSTEM
0.1μF
500k
LTC699 TA1
V
CC
GND
WDI
RESET
MICROPROCESSOR RESET AND WATCHDOG TIMING IN
A SINGLE CHIP FOR MICROPROCESSOR SYSTEMS.
+5V
LTC699
VCC
RESET PULSE
GENERATOR
WDI
1.3V
–
+
C1
OSC
RESET
LTC699 BD
GND
TRANSITION
DETECTOR
WATCHDOG
TIMER
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LTC699C | Microprocessor Supervisory Circuit |
| LTC699CS8 | Microprocessor Supervisory Circuit |
| LTC699I | Microprocessor Supervisory Circuit |
| LTC699IS8 | Microprocessor Supervisory Circuit |
| LTC699CN8 | Microprocessor Supervisory Circuit |
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