UPD75216ACW

Manufacturer Part NumberUPD75216ACW
Description4-BIT SINGLE-CHIP MICROCOMPUTER
ManufacturerNEC
UPD75216ACW datasheet
 


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8
P03/SI
SIO0
Shift Register (8)
*1
P02/SO
P01/SCK
* 1. CMOS output and N-ch open drain output switchable output buffer.
2. Instruction execution
Fig 5-7 Serial Interface Block Diagram
Internal Bus
8
SIO7
SIO
SIOM7SIOM6SIOM5SIOM4SIOM3SIOM2SIOM1SIOM0
SO Output
Latch
Overflow
Serial Clock
Counter (3)
Clear
R
Q
S
MPX
SET1 *2
8
SIOM
INTSIO
IRQSIO
Set Signal
IRQSIO
Clear Signal
Serial Start
4
f
/2
xx
10
f
/2
xx