R311H151C View Datasheet(PDF) - RICOH Co.,Ltd.

Part Name

Description

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R311H151C

LOW VOLTAGE DETECTOR

RICOH Co.,Ltd. 

s TYPICAL APPLICATION

q R3111xxx1A CPU Reset Circuit (Nch Open Drain Output)

Case 1.Input Voltage to R3111xxx1A is equal to

Case 2.Input Voltage to R3111xxx1A is unequal to

Input Voltage to CPU

VDD

Input Voltage to CPU

VDD1

VDD2

VDD

470K

R

VDD

VDD

470K

R

VDD

R3111XXX1A

SERIES OUT

CPU

RESET

GND

R3111XXX1A

SERIES OUT

CPU

RESET

GND

GND

GND

q R3111xxx1A CPU Reset Circuit CMOS Output

VDD

VDD

VDD

R3111XXX1C

SERIES OUT

CPU

RESET

GND

GND

q R3111xxx1A Output Delay Time Circuit 1

(Nch Open Drain Output)

VDD

VDD

470K

R

VDD

R3111XXX1A

SERIES OUT

CPU

RESET

GND

GND

q R3111xxx1A Output Delay Time Circuit 2

(Nch Open Drain Output)

VDD

100K

R1

470K

R3111XXX1A

VDD SERIES OUT

R2 VDD

CPU

RESET

GND

GND

q Memory Back-up Circuit

VDD

D1

VDD

VCC

D2

A

B

G

Y1

Y2

Y3

Y4

GND

R3111XXX1C OUT

SERIES

GND

VCC

RAM1

VCC

RAM2

VCC

RAM3

VCC

RAM4

GND CS GND CS GND CS GND CS

Rev.1.10

- 18 -

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