UPD75218CW View Datasheet(PDF) - NEC => Renesas Technology

Part Name

Description

MFG CO.

UPD75218CW

4-BIT SINGLE-CHIP MICROCOMPUTER

NEC => Renesas Technology 

µPD75218

3. PIN FUNCTIONS

3.1 PORT PINS

Dual-

Pin

I/O

function pin

Function

8-bit

Input / output

I/O After reset circuit typeNote

P00

Input

INT4

4-bit input port (PORT0)

×

Input

B

P01

Input/output

SCK

F

P02

Input/output

SO

G

P03

Input

SI

B

P10

Input

INT0

Noise elimination function available

Input

B

P11

INT1

Noise elimination function available

P12

INT2

4-bit input port (PORT1)

P13

TI0

P20

Input/

–––

4-bit input/output port (PORT2)

P21

output

–––

×

Input

E

P22

–––

P23

BUZ

P30 to P33

Input/

output

–––

Programmable 4-bit input/ output port (PORT3).

Input/output specifiable in 1-bit units.

Input

E

P40 to P43

Input/

output

–––

4-bit input/output port (PORT4).

LED direct drive capability.

q

Input

E

P50 to P53 Input/

–––

4-bit input/output port (PORT5).

output

LED direct drive capability.

Input

E

P60 to P63 Input/

–––

Programmable 4-bit input/output port (PORT6).

×

Input

V

output

Input/output specifiable in 1-bit units.

On-chip pull-down resistor available (mask

option). Suitable for key input.

PH0

Output T13/S12 4-bit P-ch open-drain output port with high

× Low level

I

PH1

PH2

T12/S13

T11/S14

withstand voltage and high current (PORTH).

LED direct drive capability. On-chip pull-down

resistor available (mask option).

(with an on-

chip pull-

down resistor)

or high

PH3

T10/S15

impedance.

Note The circuit-type codes enclosed in circles indicate that the corresponding circuits have a Schmitt-triggered

input.

7

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