M61530FP

Rev.1.0, Sep.19.2003, page 6 of 18

Relation between DATA and CLOCK

The data signal is read on the rising edges of the CLOCK signal

D0

D1

D2

D3

D13

D14

D15

Latch condition

CLOCK

DATA

1. Data transmission

The DATA signal is read on the rising edges of the CLOCK signal. The DATA line must always be low

on the falling edge of the CLOCK signal during transmission of the DATA signal.

2. Data Latch

Data for this IC is in 16-bits (D0 to D15) words. Latch the transmitted data by

driving the DATA line high on the falling edge of the CLOCK signal after the transmission of D15.

The DATA line is driven high to latch

D0 to D15 at this time

CLOCK and DATA timing

tWHC

25%

75%

DATA

CLOCK

(D15) L ATCH signal

tWLC

tf

tr

tHLD tSHD

tHHD

tSLD

tHLD

(D0 to D15)

tSLD