Datasheet

SN74ALVCHR162409
9-BIT, 4-PORT UNIVERSAL BUS EXCHANGER
WITH 3-STATE OUTPUTS
SCES056F – SEPTEMBER 1995 – REVISED FEBRUARY 1999
4–96
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
Function Tables
INPUTS
OUTPUT
CLK SEND PORT
RECEIVE PORT
X X B
0
†
X LL
X HH
↑ LL
↑ HH
H XB
0
†
L X B
0
†
†
Output level before the indicated steady-state
input conditions were established
DATA-FLOW CONTROL
INPUTS
PRE SELEN CLK SEL0 SEL1 SEL2 SEL3 SEL4
DATA FLOW
H X X X X X X X All outputs disabled
L H ↑ X X X X X No change
L L ↑ 0 0 0 0 0 None, all I/Os off
L L ↑ 0 0 0 0 1 Not used
L L ↑ 0 0 0 1 0 Not used
L L ↑ 0 0 0 1 1 Not used
L L ↑ 0 0 1 0 0 Not used
L L ↑ 0 0 1 0 1 Not used
L L ↑ 0 0 1 1 0 Not used
L L ↑ 0 0 1 1 1 Not used
L L ↑ 0 1 0 0 0 2A to 1A and 1B to 2B
L L ↑ 0 1 0 0 1 2A to 1A
L L ↑ 0 1 0 1 0 2B to 1B
L L ↑ 0 1 0 1 1 2A to 1A and 2B to 1B
L L ↑ 0 1 1 0 0 1A to 2A and 1B to 2B
L L ↑ 0 1 1 0 1 1A to 2A
L L ↑ 0 1 1 1 0 1B to 2B
L L ↑ 0 1 1 1 1 1A to 2A and 2B to 1B
L L ↑ 1 0 0 0 0 1A to 1B and 2B to 2A
L L ↑ 1 0 0 0 1 1A to 1B
L L ↑ 1 0 0 1 0 2A to 2B
L L ↑ 1 0 0 1 1 1A to 1B and 2A to 2B
L L ↑ 1 0 1 0 0 1B to 1A and 2A to 2B
L L ↑ 1 0 1 0 1 1B to 1A
L L ↑ 1 0 1 1 0 2B to 2A
L L ↑ 1 0 1 1 1 1B to 1A and 2B to 2A
L L ↑ 1 1 0 0 0 2B to 1A and 2A to 1B
L L ↑ 1 1 0 0 1 1B to 2A
L L ↑ 1 1 0 1 0 2B to 1A
L L ↑ 1 1 0 1 1 2B to 1A and 1B to 2A
L L ↑ 1 1 1 0 0 1A to 2B and 1B to 2A
L L ↑ 1 1 1 0 1 1A to 2B
L L ↑ 1 1 1 1 0 2A to 1B
L L ↑ 1 1 1 1 1 1A to 2B and 2A to 1B