M62023L Mitsubishi, M62023L Datasheet

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M62023L

Manufacturer Part Number
M62023L
Description
SYSTEM RESET IC WITH SWITCH FOR MEMORY BACK-UP
Manufacturer
Mitsubishi
Datasheet
GENERAL DESCRIPTION
The M62023L/P/FP is a system reset IC that controls the memory
backup function of an SRAM and an embedded RAM of a
microcontroller.
power-down and power failure. It also shifts the power supply to
RAMs from main to backup, outputs a signal (CS) that invokes
standby mode, and alters RAMs to backup circuit mode.
FEATURES
• Built-in switch for selection between main power supply and back-
• Small difference between input and output voltages
• Detection voltage (power supply monitor voltage) : 2.57V typ
• Chip select signal output (CS)
• Two channels of reset outputs (RES/RES)
• Power on reset circuit
APPLICATION
Power supply control systems for memory of microcontroller
systems in electronic equipment such as OA equipment,
industrial equipment, and home-use electronic appliances
and SRAM boards with built-in backup function that require
switching between external power supply and battery.
The IC outputs reset signals (RES/RES) to a microcontroller at
up power supply to RAMs
(I
BLOCK DIAGRAM
OUT
RES
RES
=80mA, V
V
IN
3
7
5
IN
=3V) : 0.15V typ
R
R
1
2
1.24V
Com
SYSTEM RESET IC WITH SWITCH FOR MEMORY BACK-UP
SW
CIRCUIT
RESET
(
1 4
CIRCUIT
DELAY
GND
/
6
)
MITSUBISHI <Dig./Ana.INTERFACE>
PIN CONFIGURATION (TOP VIEW)
V
V
OUT
BAT
V
Ct 4
IN
M62023L,P,FP
Outline 8P4 (P)
1
2
3
D
Outline 8P5 (L)
1
8P2S-A (FP)
8 CS
7 RES
6 GND
5 RES
4 C
3 V
2 V
1 V
1997.5.30- rev
8 CS
7 RES
6 GND
5 RES
IN
BAT
OUT
t
1
4
2
8
V
V
CS
C
OUT
BAT
t

Related parts for M62023L

M62023L Summary of contents

Page 1

... GENERAL DESCRIPTION The M62023L/P/ system reset IC that controls the memory backup function of an SRAM and an embedded RAM of a microcontroller. The IC outputs reset signals (RES/RES microcontroller at power-down and power failure. It also shifts the power supply to RAMs from main to backup, outputs a signal (CS) that invokes standby mode, and alters RAMs to backup circuit mode ...

Page 2

... (Note 3) and V , voltage values are generated by internal resistance only and no external OH OL =1M , between the CS pin and GND M62023L,P,FP Ratings Unit 7 V 100 mA 800(L)/625(P)/440(FP) mW 8(L)/6.25(P)/4.4(FP) mW/°C -20 to +75 °C -40 to +125 °C Limits Unit Min Typ Max 2 ...

Page 3

... RAM enters standby state disabling read/write function. The pin is capable of flowing a 1mA sink current. M62023 Com RESET CIRCUIT 1.24V DELAY CIRCUIT GND 6 Capacitance to be connected M62023L,P,FP Function of CMOS RAM DD V OUT 1 BATTERY V BAT C OUT CMOS C t ...

Page 4

... V OL(RES) As the state shifts from a logic A logic high is maintained, and low to logic high, the output then shifts to a logic low level becomes the voltage MITSUBISHI <Dig./Ana.INTERFACE> M62023L,P, ...

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