SM16705FN 参数 Datasheet PDF下载

SAMHOP Microelectronics Corp.

8-BIT CONSTANT CURRENT LED DRIVER

SM16705P/F/FN

BLOCK DIAGRAM

OUT0

R-EXT

I-REG.

OUT1

OUT7

ENABLE

Q

ST D

Q

ST D

Q

ST D

LATCH

SERIAL-IN

CLOCK

D Q

CK

D Q

CK

D Q

CK

SERIAL-

OUT

TIMING DIAGRAM

CLOCK

SERIAL-IN

LATCH

ENABLE

OUT0

OUT1

OUT2

OUT7

SERIAL-OUT

.....

5V

0V

5V

0V

5V

0V

5V

0V

On

Off

On

Off

On

Off

On

Off

5V

0V

Note : Latches are level sensitive, not rising edges sensitive and not synchronous CLOCK.

Input of LATCH-terminal to H Level, data passes latches, and input of LATCH -terminal to L level, data

hold latches.

Input of ENABLE-terminal to H Level, all output (OUT0 ~ 7) do off.

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V.2.0 MAY,2003