UPD75238GJ NEC [NEC], UPD75238GJ Datasheet - Page 9
UPD75238GJ
Manufacturer Part Number
UPD75238GJ
Description
4 BIT SINGLE-CHIP MICROCOMPUTER
Manufacturer
NEC [NEC]
Datasheet
1.UPD75238GJ.pdf
(190 pages)
- Current page: 9 of 190
- Download datasheet (2Mb)
1.2 NON-PORT PINS (1/2)
Pin name
T10/S15-
T13/S12
S16-S19
S20-S23
T14/S11
T15/S10
S0-S3
S4-S7
T0-T9
S8
S9
I/O
O
P120-P123
P130-P133
P100-P103
P110-P113
PH3/P153-
PH0/P150
Also
used as
P143
P142
P140
P141
–
Output pins
for FIP
controller/
driver.
Allows pull-
down
resistor to
be provided
(mask
option).
High-voltage, large-current output for digit
output
High-voltage, large-current output usable
for digit/segment output as well.
Any unused pins can be used for port H.
Usable for port 15 in static mode.
High-voltage, large-current output usable
for digit/segment output as well.
Usable for port 14 in static mode.
High-voltage output for segment output.
Usable for port 12 to port 14 in static mode.
High-voltage output for segment output.
Usable for port 10 and port 11 in static
mode.
Function
When reset
V
(when
pull-down
resistor to
V
provided)
or high-
impedance
V
(when
pull-down
resistor to
V
provided),
V
(when
pull-down
resistor to
V
provided),
or high-
impedance
LOAD
LOAD
LOAD
LOAD
SS
SS
level
is
level
is
level
is
PD75238
I/O
circuit
type
I - C
I - F
9
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