R3111Q601B-TR-F Ver la hoja de datos (PDF) - RICOH Co.,Ltd.

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R3111Q601B-TR-F

LOW VOLTAGE DETECTOR

RICOH Co.,Ltd. 

R3111x

TYPICAL APPLICATION

• R3111xxxxA CPU Reset Circuit (Nch Open Drain Output)

Case 1. Input Voltage to R3111xxxxA is equal to

Input Voltage to CPU

Case 2. Input Voltage to R3111xxxxA is unequal to

Input Voltage to CPU

VDD

VDD

470kΩ R

VDD

R3111xxxxA

Series

OUT

CPU

RESET

GND

VDD

VDD

470kΩ R

VDD

R3111xxxxA

Series

OUT

CPU

RESET

GND

VDD2

GND

GND

• R3111xxxxC CPU Reset Circuit (CMOS Output)

VDD

R3111xxxxC

Series

OUT

GND

VDD

VDD

CPU

RESET

GND

• R3111xxxxA Output Delay Time Circuit 1

(Nch Open Drain Output)

VDD

VDD

470kΩ R

VDD

R3111xxxxA

Series

OUT

CPU

RESET

GND

GND

• R3111xxxxA Output Delay Time Circuit 2

(Nch Open Drain Output)

VDD

100kΩ

R1

470kΩ R2 VDD

CPU

R3111xxxxA

VDD Series

OUT

RESET

GND

GND

• Memory Back-up Circuit

VDD

D1

VDD

VCC

D2

A

B

C

Y1

Y2

Y3

Y4

GND

R3111xxxxC OUT

Series

GND

VCC

VCC

VCC

VCC

RAM1 RAM2 RAM3 RAM4

GND CS GND CS GND CS GND CS

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