M62023L Mitsubishi, M62023L Datasheet - Page 3

• Manufacturer Part Number: M62023L
• Description: SYSTEM RESET IC WITH SWITCH FOR MEMORY BACK-UP
• Manufacturer: Mitsubishi

+3V
(MAIN POWER SUPPLY)
EXPLANATION OF TERMINALS
APPLICATION EXAMPLE
Pin No.
V
DD
1
2
3
4
5
6
7
8
MCU
CPU
or
Symbol
V
V
GND
RES
RES
C
V
CS
OUT
C
BAT
IN
IN
t
RES
RES
Power supply output
Backup power supply
input
Power supply input
Delay capacitor
connection pin
Positive reset output
Ground
Negative reset output
Chip select output
V
IN
7
5
3
R
R
Name
1
2
SYSTEM RESET IC WITH SWITCH FOR MEMORY BACK-UP
1.24V
V
V
The pin is capable of outputting up to 100 mA. Use it as V
and the like.
Backup power supply is connected to this pin.
If a lithium battery is used, insert a resistor in series for safety purposes.
+3V input pin. Connect to a logic power supply.
A delay capacitor is connected to this pin. By connecting a capacitor, it is
possible to delay each output.
Connect to the positive reset input of a microcontroller. The pin is capable of
flowing 1mA sink current.
Reference for all signals
Connect to the negative reset input of a microcontroller. The pin is capable of
flowing 1mA sink current.
Connect to the
thereby letting RAM be active. Under failure or backup condition, the CS
output is set to high level, then RAM enters standby state disabling read/write
function. The pin is capable of flowing a 1mA sink current.
Com
IN
OUT
M62023
and V
.
Capacitance to be connected: C
SW
CIRCUIT
GND
BAT
RESET
CIRCUIT
are controlled by means of an internal switch and output through
(
DELAY
3 4
chip select
6
/
)
D
of RAM. The CS output is at low level in normal state
1
MITSUBISHI <Dig./Ana.INTERFACE>
Function
4
1
2
8
V
V
CS
M62023L,P,FP
C
OUT
BAT
t
IN
: 10µF; C
BATTERY
C
3V
t
OUT
DD
: 4.7µF; C
of CMOS RAM
C
OUT
1997.5.30- rev
CMOS
RAM
t
: 4.7µF
V
DD