D75208CW NEC, D75208CW Datasheet - Page 21
D75208CW
Manufacturer Part Number
D75208CW
Description
Search -----> UPD75208
Manufacturer
NEC
Datasheet
1.D75208CW.pdf
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P01/SCK
P02/SO
P03/SI
* 1. CMOS output and N-ch open-drain output switchable output buffer.
2. Instruction execution
SIO0
*1
Shift Register (8)
8
8
Q
SO Output
Latch
Serial Clock
Counter (3)
Fig 5-7 Serial Interface Block Diagram
Clear
R
S
SIO7
SIO
Overflow
Internal Bus
SIOM7 SIOM6 SIOM5 SIOM4 SIOM3 SIOM2 SIOM1 SIOM0
MPX
Serial Start
8
SET1 *2
f
f
xx
xx
/2
/2
4
10
SIOM
IRQSIO
Clear Signal
INTSIO
IRQSIO
Set Signal
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