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參數(shù)資料
| 型號： | HA1848P |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Watchdog Timer |
| 中文描述： | 看門狗定時器 |
| 文件頁數(shù)： | 1/13頁 |
| 文件大小： | 59K |
| 代理商： | HA1848P |
HA1835P/HA1848P
Watchdog Timer
Description
The HA1835P and HA1848P is a monolithic voltage regulator control designed for microcomputer
systems. In addition to the voltage regulator, it include watchdog timer function and power-on reset
function.
These ICs can perform many function in various microcomputer systems with few external parts.
Features
Regulated power supply control function
Wide area of operational voltage; V
CC
= 6 V to 30 V
Available external PNP-type transistor, suited to any system power supply
Built-in overcurrent limiter for external PNP-type transistor
Output voltage can be adjusted exactry in the range from 4 V to 6 V
Watchdog timer
Internal bandpass filter control circuit (pulse width detect type) and reset signal oscillator
Fail-safe utility
Bandpass filter characteristics can be set by external resister (Rf) and capacitance (Cf)
Automatic reset
Automatic power-on reset
Pulse generator characteristics can be set by external resistor (R
R
) and capacitance (C
R
)
Alternative between
RES
and RES output
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