4513 datasheet(51/97 Pages) RENESAS

Part #	4513

Description	SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

PDF	97 Pages

Scroll/Zoom	100%

Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

Logo

51 / 97 page

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).

4513 Datasheet(PDF) 51 Page - Renesas Technology Corp