NJU3505L データシートの表示（PDF） - Japan Radio Corporation

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NJU3505L

4-BIT SINGLE CHIP MICRO CONTROLLER

Japan Radio Corporation  

NJU3505

s SERIAL INPUT OUTPUT

SERIAL INPUT OUTPUT consists of the sift registers to convert from 8-bit parallel data to serial data, the 3-

bit serial clock counter, and the 3-bit serial control register. It operates as the 8-bit serial input or output. The

external or internal clock is selected as the shift clock in accordance with the Serial Input / Output control

register.

[ Block diagram of the Serial Input Output ]

INTERNAL CLOCK

COUNTER

SERIAL I/O INTERRUPT SIGNAL

DB

3

4

CONTROL REGISTER

DEMULTIPLEXER

4

4

8-bit SERIAL DATA REGISTER

4

4

MULTIPLEXER

4

DB

SELECTOR

SCK/CKOUT SDI(O)/PL1

SDO/PL0

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