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參數(shù)資料
| 型號(hào)： | H6061 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 3 V Self Recovering Watchdog |
| 中文描述： | 3伏自我恢復(fù)看門狗 |
| 文件頁(yè)數(shù)： | 1/8頁(yè) |
| 文件大?。?/td> | 142K |
| 代理商： | H6061 |
EM MICROELECTRONIC-MARIN SA
H6061
1
3 V Self Recovering Watchdog
Features
n
Watchdog fully operational from 2.7 to 5.25 V
n
Regulated DC voltage monitor, internal voltage
reference
n
Self recovering watchdog function: reset goes active
after the 1st timeout period, reset goes inactive
again after the 2nd timeout period, repeated active
reset signal until the system recovers
n
Standard timeout period and power-on reset time
(100 ms), externally programmable from 3 ms to
3 mins if required
n
Works down to 1.6 V supply voltage
n
Low voltage alarm prior to reset on power-down
n
Reset outputs of both polarities
n
Open drain outputs
n
Small footprint SO8 and DIP8 packages
Description
The H6061 is a combined initialiser, watchdog and
voltage monitor. The circuit is a low voltage low power
monolithic CMOS device combining a series of voltage
comparators and a programmable timer on the same
chip.
The
device
is
telecommunications applications where 3 V working is
expected, for functions such as supply voltage and
microprocessor monitoring. The reset outputs are self
recovering after a watchdog timeout, enabling the circuit
to work with standalone systems without any external
push-switch or control signal to restart after a watchdog
timeout. The circuit provides a reset signal of both
polarities. The state of the outputs is defined down to
1.6 V. An internal debouncer ensures power-up
perfomance for fast-rise supply lines.
specially
suited
to
Applications
n
Microprocessor and microcontroller systems
n
Point of sales equipment
n
Telecom products
n
Automotive subsystems
n
Microcontroller 68HC05 applications
Typical Operating Configuration
Pin Assignment
DIP8 / SO8
V
IN
V
SS
RC
TCL
V
DD
RES
SAVE
RES
Fig. 2
H6061
Fig. 1
V
IN
TCL SAVE
H6061
RES
V
RES
V
SS
5 V
GND
NMI
RES
I/O
μ
P
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