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UPD75402ACT 데이터시트(PDF) 19 Page - NEC

부품명 UPD75402ACT
상세설명  4 BIT SINGLE-CHIP MICROCOMPUTER
PDF  48 Pages
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제조업체  NEC [NEC]
홈페이지  http://www.nec.com/
Logo NEC - NEC

UPD75402ACT 데이터시트(HTML) 19 Page - NEC

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Fig. 5-4 Block Diagram of the Serial Interface
8
Bit
test
CSIM
Selector
Internal bus
8
8
Slave address
register (SVA)
Address comparator
Shift register (SIO)
Bus-release/
command/
acknowledge
detector
Serial clock
counter
Serial clock
control
circuit
MPX
fXX/2
4
INTCSI
IRQCSI
Set signal
INTCSI
control
circuit
Busy/
acknowl-
edge
output
circuit
P03/SI
P02 /SO/SB0
P01/SCK
(8)
(8)
Match
signal
(8)
Bit manipulation
RELT
CMDT
SBIC
Bit test
SET CLR
DQ
RELD
CMDD
ACKD
SO
Iatch
External SCK



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