Datasheet

SN74ALVCH16280
16-BIT TO 32-BIT REGISTERED BUS EXCHANGER
WITH BYTE MASKS AND 3-STATE OUTPUTS
SCES033A – JULY 1995 – REVISED FEBRUARY 1999
3–86
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
Function Tables
OUTPUT ENABLE
INPUTS
OUTPUTS
CLK OE DIR A 1B, 2B 1D, 2D
↑ H X Z Z Z
↑ LH ZActive Active
↑ L L Active Z Active
A-TO-B STORAGE
(OE
= L, DIR = H)
INPUTS OUTPUTS
SEL CLK A 1B 2B
H X X 1B
0
†
2B
0
†
L ↑ LL
‡
L
L ↑ H H
‡
H
†
Output level before the indicated
steady-state input conditions were
established
‡
Two CLK edges are needed to propagate
the data.
B-TO-A STORAGE
(OE
= L, DIR = L)
INPUTS
OUTPUT
CLK SEL 1B 2B
A
↑ H X L L
§
↑ HXH H
§
↑ LLX L
↑ L H X H
§
Two clock edges are needed to propagate the
data. The data is loaded in the first register
when SEL
is low and propagates to the second
register when SEL
is high.
C-TO-D STORAGE
(OE
= L)
INPUTS
OUTPUTS
SEL CLK A 1B 2B
H X X 1D
0
†
2D
0
†
L ↑ LL
‡
L
L ↑ H H
‡
H
†
Output level before the indicated
steady-state input conditions were
established
‡
Two CLK edges are needed to propagate
the data.
PRODUCT PREVIEW