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UPD75P4308GS 데이터시트(PDF) 7 Page - NEC

부품명 UPD75P4308GS
상세설명  4-BIT SINGLE-CHIP MICROCONTROLLER
PDF  60 Pages
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제조업체  NEC [NEC]
홈페이지  http://www.nec.com/
Logo NEC - NEC

UPD75P4308GS 데이터시트(HTML) 7 Page - NEC

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µPD75P4308
7
3.1 Port Pins (2/2)
Pin name
I/O
Alternate
Function
8-bit
After
I/O Circuit
function
I/O
reset
typeNote
P60
I/O
KR0/D0
Yes
Input
<F>-A
P61
KR1/D1
P62
KR2/D2
P63
KR3/D3
P70
I/O
KR4
Input
<F>-A
P71
KR5
P72
KR6
P73
KR7
P80
I/O
—
No
Input
E-B
P81
—
Note Circuit types in brackets indicate the Schmitt trigger input.
4-bit I/O port (PORT7).
Connections of on-chip pull-up resistors are
software-specifiable in 4-bit units.
2-bit I/O port (PORT8).
Connections of on-chip pull-up resistors are
software-specifiable in 2-bit units.
Programmable 4-bit I/O port (PORT6).
Input and output can be specified in single-bit
units. Connections of on-chip pull-up resistors
are software-specifiable in 4-bit units.
Data input/output pin for program memory
(PROM) write/verify (lower 4 bits).



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