UPD75336 datasheet(8/68 Pages) NEC

8 / 68 page

µPD75336

PIN FUNCTIONS

3.1

PORT PINS (1/2)

Dual-

Function Pin

INT4

SCK

SO/SB0

SI/SB1

INT0

INT1

INT2

TI0

PTO0

PTO1

PCL

BUZ

LCDCL

SYNC

—

I/O Circuit

Type *1

F - A

F - B

M - C

B - C

E - B

*1.

: Schmitt triggered input

2. LED direct drive possible

With noise elimination function

Pin Name

P00

P01

P02

P03

P10

P11

P12

P13

P20

P21

P22

P23

P30 *2

P31 *2

P32 *2

P33 *2

P40 to P43 *2

P50 to P53 *2

Input/Output

Input

Input/output

Input

Input/output

Function

4-bit input port (PORT 0)

Pull-up resistor can be used for P01 to P03

as a 3-bit unit by software.

4-bit input port (PORT 1)

Pull-up resistor can be used as a 4-bit unit

by software.

4-bit input/output port (PORT 2)

Pull-up resistor can be used as a 4-bit unit

by software.

Programmable 4-bit input/output port (PORT 3)

Input/output can be specified bit-wise.

Pull-up resistor can be used as a 4-bit unit

by software.

N-ch open-drain 4-bit input/output port

(PORT 4)

On-chip pull-up resistor can be specified bit-

wise (mask option).

Open-drain: 10 V withstand voltage

N-ch open-drain 4-bit input/output port

(PORT 5)

On-chip pull-up resistor can be specified bit-

wise (mask option).

Open-drain: 10 V withstand voltage

Reset

Input

High level

(on-chip pull-up re-

sistor) or high-im-

pedance

High level

(on-chip pull-up

resistor) or high-

impedance

8-Bit I/O

UPD75336 Datasheet(PDF) 8 Page - NEC

UPD75336 Datasheet(HTML) 8 Page - NEC

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