UPD75P3116 NEC, UPD75P3116 Datasheet - Page 7

• Manufacturer Part Number: UPD75P3116
• Description: 4-BIT SINGLE-CHIP MICROCONTROLLER
• Manufacturer: NEC

3.1 Port Pins (2/2)
Notes 1. Circuit types enclosed in brackets indicate Schmitt trigger input.
P60
P61
P62
P63
P80
P81
P82
P83
P90
P91
P92
P93
Pin name
2. Low-level leak current increases when an input instruction or a bit manipulation instruction is performed.
3. Do not connect an internal pull-up resistor by software when used as the segment signal output.
I/O
I/O
I/O
I/O
Alternate function
KR0/D0
KR1/D1
KR2/D2
KR3/D3
S23
S22
S21
S20
S19
S18
S17
S16
Programmable 4-bit I/O port (PORT6)
Input and output in single-bit units can be specified.
When set for 4-bit units, connection of an internal
pull-up resistor can be specified by software.
4-bit I/O port (PORT8)
When set for 4-bit units, connection of an internal
pull-up resistor can be specified by software
Programmable 4-bit I/O port (PORT9)
When set for 4-bit units, connection of an internal
pull-up resistor can be specified by software
Function
Note 3
Note 3
.
.
8-bit
I/O
X
after reset
PD75P3116
Status
Input
Input
Input
I/O circuit
type
<F>-A
H
H
Note 1
7