UPD75112 datasheet(10/74 Pages) RENESAS

10 / 74 page

µPD75112, 75116

3. Pin Functions

3.1 Port Pins

Dual Function Pin

INT4

SCK

INT0

INT1

INT2

INT3

PTO0

PTO1

PCL

I/O Circuit

Type *1

Pin Name

P00

P01

P02

P03

P10

P11

P12

P13

P20 *3

P21 *3

P22 *3

P23 *3

P30 to

P33 *3

P40 to

P43 *3

P50 to

P53 *3

P60 to

P63 *3

P70 to

P73 *3

P80 to

P83 *3

P90 to

P93 *3

P120 to

P123 *3

P130 to

P133 *3

P140 to

P143 *3

Function

4-bit input port (PORT0)

4-bit input port (PORT1)

4-bit input/output port (PORT2)

Programmable 4-bit input/output

port (PORT3)

Bit-wise input/output setting enable

4-bit input/output port (PORT4)

4-bit input/output port (PORT5)

Programmable 4-bit input/output

port (PORT6)

Bit-wise input/output setting enable

4-bit input/output port (PORT7)

4-bit input/output port (PORT8)

4-bit input/output port (PORT9)

N-ch open drain 4-bit input/ output

port (PORT12)

Bit-wise pull-up resistor incorporation

enable

(mask option)

2 V withstand for open drain

N-ch open drain 4-bit input/ output

port (PORT13)

Bit-wise pull-up resistor incorporation

enable

(mask option)

12 V withstand for open drain

N-ch open drain 4-bit input/output

port (PORT14)

Bit-wise pull-up resistor incorporation

enable

(mask option)

12 V withstand for open drain

*1: Circles indicate Schmitt trigger inputs.

2: High impedance for open drain

High level for on-chip pull-up resistors

3: LED direct drive is possiblle

Input/ Output

Input

Input/output

Input

Input/output

At Reset

Input

Input*2

8-Bit I/O

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