CXP5078 查看數據表（PDF） - Sony Semiconductor

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CXP5078

CMOS 4-bit Single Chip Microcomputer

Sony Semiconductor 

CXP5076/5078

Symbol

PD3/

SEG31

to

PD0/

SEG28

PC3/

SEG27

to

PC0/

SEG24

PH3/

SEG23

to

PH0/

SEG20

PG3/

SEG19

to

PG0/

SEG16

Name

Port D

Segment

output

Port C

Segment

output

Port H

Segment

output

Port G

Segment

output

I/O

Equivalent Circuit

Description

Doubles as a 4-bit output port (For the

output format, the inverter and pull-up

O

resistor possible to be programmed.)

P

N

Segment

and as the segment signal output pin

for LCD.

Doubles as a 4-bit output port (The

O The transfer gate input signal

output format is equivalent to port D.)

and as the segment signal output pin

is controlled based on 1/2, 1/3 for LCD.

bias method in advance.

Doubles as a 4-bit output port (The

O

Data

Output Select

Standby

Port C, D, G, H output format is equivalent to port D.)

(Note 3)

and as the segment signal output pin

LCD/PORT

for LCD. (Possible to designate in bit

select

units.)

See Note 3) for the output

circuit format.

O

Doubles as a 4-bit output port (The

output format is equivalent to port D.)

and as the segment signal output pin

for LCD.

SEG0

to

SEG15

Segment

output

P

N

O

Segment signal output pin for LCD

The transfer gate input signal

is controlled based on 1/2, 1/3

bias methods in advance.

COM0

to

COM3

Common

output

O

P

N

VLC1

to

VLC3

VL

Transfer gate output

Power supply

for LCD

—

Cut-off

output

O

N

–6–

Common signal output pin for LCD

Bias power supply pin for LCD

Control pin which cuts off the current

input to the bias resistor for the

external LCD during standby.

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