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B1

CLK

CLKENBA

OEAB

OEBA

SEL

CE

C1

1D

A1

CE

C1

1D

CE

C1

1D

CE

C1

1D

1

1

1 of 18 Channels

G1

30

28

2

27

55

3

54

SN74ALVCH16524

18-BIT REGISTERED BUS TRANSCEIVER

WITH 3-STATE OUTPUTS

SCES080E – JULY 1996 – REVISED OCTOBER 2004

FUNCTION TABLE

B-TO-A STORAGE (OEBA = L)

INPUTS

OUTPUT

A

CLKENBA

CLK

SEL

B

H

X

X

X

L

↑

H

L

L

L

↑

H

H

H

L

↑

L

L

L

↑

L

H

(1)

Output level before the indicated steady-state input conditions were

established

(2)

Four positive CLK edges are needed to propagate data from B to A

when SEL is low.

LOGIC DIAGRAM (POSITIVE LOGIC)

2