UPD75238GJ View Datasheet(PDF) - NEC => Renesas Technology
Part Name
Description
Manufacturer
UPD75238GJ Datasheet PDF : 190 Pages
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µPD75238
1. PIN FUNCTIONS
1.1 PORT PINS (1/2)
Pin name
I/O Also
used as
Function
8-bit I/O
When reset
I/ONote 1
circuit
type
P00
I
INT4
4-bit input port (port 0).
P01
SCK0
For P01 to P03, pull-up resistors can be
provided by software in units of 3 bits.
P02
SO0/SB0
× Input
P03
SI0/SB1
P10
I
INT0
With noise elimination function × Input
P11
INT1
4-bit input port (port 1).
P12
INT2
Pull-up resistors can be provided by software
in units of 4 bits.
P13
TI0
P20
I/O PTO0 4-bit I/O port (port 2).
× Input
P21
–
Pull-up resistors can be provided by software
in units of 4 bits.
P22
PCL
B
F-A
F-B
M-C
B-C
E-B
P23
P30Note 2
I/O
P31Note 2
P32Note 2
P33Note 2
P40-P43Note 2 I/O
BUZ
–
–
–
–
–
Programmable 4-bit I/O port (port 3).
Input/output can be specified bit by bit.
Pull-up resistors can be provided by software
in units of 4 bits.
× Input
E-C
N-ch open-drain 4-bit I/O port (port 4).
A pull-up resistor can be provided bit by bit
(mask option).
Withstand voltage is 10 V in open-drain mode.
r High level
M
(when a pull-up
resistor is
provided) or
high impedance
P50-P53Note 2 I/O
–
N-ch open-drain 4-bit I/O port (port 5).
A pull-up resistor can be provided bit by bit
(mask option).
Withstand voltage is 10 V in open-drain mode.
High level
M
(when a pull-up
resistor is
provided) or
high impedance
P60
I/O
–
Programmable 4-bit I/O port (port 6).
r Input
P61
–
Input/output can be specified bit by bit.
Pull-up resistors can be provided by software
P62
–
in units of 4 bits.
P63
–
E-C
P70
I/O
–
4-bit I/O port (port 7).
P71
–
A pull-down resistor can be provided bit by bit
(mask option).
P72
–
P73
–
VSS level (when V
a pull-down
resistor is
provided) or
high impedance
Notes 1. The circuits enclosed in circles have a Schmitt-triggered input.
2. An LED can be driven directly.
7
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