AD421

–3–

REV. C

Parameter

(B Versions)

Units

Conditions/Comments

100

ns min

Data Clock Period

50

ns min

Data Clock Low Time

50

ns min

Data Clock High Time

30

ns min

Data Stable Width

30

ns min

Data Setup Time

0

ns min

Data Hold Time

50

ns min

Latch Delay Time

50

ns min

Latch Low Time

50

ns min

Latch High Time

NOTES

µs on any digital

input.

Specifications subject to change without notice.

WORD "N"

WORD "N +1"

10

1

1

1 1

11

1

1

00

0

0

0

0

1

0

0

1

CLOCK

DATA

LATCH

Figure 1. Serial Interface Waveforms (Normal Data Load)

CLOCK

DATA

LATCH

t

CK

t

CL

t

CH

t

DS

t

DH

t

DW

t

LD

t

LL

t

LH

Figure 2. Serial Interface Timing Diagram