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Part Name
Description
7481 View Datasheet(PDF) - Renesas Electronics
Part Name
Description
Manufacturer
7481
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Renesas Electronics
7481 Datasheet PDF : 98 Pages
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PRELIMINARY
NSootimcee: pTahriasmisentroict
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MITSUBISHI MICROCOMPUTERS
7480/7481 GROUP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Ports P1
4
– P1
7
Data bus
SIOE
SIOM
SRDY
Direction register
Port latch
SCS
SIOE
SIOM
SIOE
Direction register
Data bus
Port latch
S
RDY
Data bus
SIOE
TE
S
CLK
output
Direction register
Port latch
SIOE
RE
Direction register
T
X
D
Data bus
Port latch
Data bus
Pull-up control
register
Tr6 to Tr9 are pull-up transistors.
Tr6
Port P1
7
Tr7
S
CLK
input
Port P1
6
Tr8
Port P1
5
R
X
D
Tr9
Port P1
4
Fig. 13 Block diagram of ports (2)
15
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