参数资料
型号: M34513E4SP
元件分类: 微控制器/微处理器
英文描述: 4-BIT, OTPROM, 4.2 MHz, MICROCONTROLLER, PDIP32
封装: 0.400 INCH, 1.78 MM PITCH, PLASTIC, SDIP-32
文件页数: 47/97页
文件大小: 1276K
代理商: M34513E4SP
50
4513/4514 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
VOLTAGE DROP DETECTION CIRCUIT
The built-in voltage drop detection circuit is designed to detect a
drop in voltage and to reset the microcomputer if the supply voltage
drops below a set value.
Fig. 37 Voltage drop detection circuit operation waveform
Fig. 36 Voltage drop detection reset circuit
Voltage drop detection circuit
Internal reset signal
RESET pin
Watchdog timer output
WEF
Note: The output structure of RESET pin is N-channel open-drain.
VDD
VRST (detection voltage)
Voltage drop detection
circuit output
The microcomputer starts
operation after f(XIN) is counted
16892 to 16895 times.
RESET pin
Notes 1: Pull-up RESET pin externally.
2: Refer to the voltage drop detection circuit in the electrical characteristics
for the rating value of VRST (detection voltage).
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