UPD75238GJ NEC [NEC], UPD75238GJ Datasheet - Page 42
UPD75238GJ
Manufacturer Part Number
UPD75238GJ
Description
4 BIT SINGLE-CHIP MICROCOMPUTER
Manufacturer
NEC [NEC]
Datasheet
1.UPD75238GJ.pdf
(190 pages)
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42
8
8
CSIM0
CSIM1
Input buffer
Input buffer
Input buffer
TI0
Selector
SI0
INT2 INT1 INT0
SI1
Fig. 4-2 Configuration of Ports 0, 1, and 8
SCK0
SO1 SCK1
or f
INT4
X
/64
Noise elimination
circuit
Bit 1 of
POGA
Input buffer with hysteresis
Selector
SO0
Output buffer which can
be switched to either
push-pull output or N-ch
open-drain output
Internal SCK1
P01
output
latch
Pull-up
resistor
Internal
SCK0
Bit 0 of
POGA
PPO
Pull-up
resistor
V
DD
V
P-ch
DD
P-ch
P10/INT0
P11/INT1
P12/INT2
P13/ TI0
P81/SCK1
P82/SO1
P83/PI1
P00/INT4
P01/SCK0
P02/SO0/SB0
P03/SI0/SB1
P80/PPO
PD75238
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