Datasheet

SN54ABT8652, SN74ABT8652
SCAN TEST DEVICES
WITH OCTAL BUS TRANSCEIVERS AND REGISTERS
SCBS122F – AUGUST 1992 – REVISED DECEMBER 1996
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
REAL-TIME TRANSFER
BUS B TO BUS A
REAL-TIME TRANSFER
BUS A TO BUS B
STORAGE FROM
A, B, OR A AND B
TRANSFER STORED DATA
TO A AND/OR B
BUS B
BUS A
BUS B
BUS A
BUS B
BUS A
BUS B
BUS A
OEAB
3
X
L
L
OEAB
3
L
26
L
1
CLKAB
X
28
CLKBA
X
2
SAB
X
27
SBA
L
1
CLKAB
X
28
CLKBA
X
2
SAB
L
27
SBA
X
26
H
1
CLKAB
28
CLKBA
X
2
SAB
X
27
SBA
X
1
CLKAB
28
CLKBA
2
SAB
27
SBA
X
H
XX
X
X
X
HL X HH
↑
↑
↑↑
OEBA
OEBA
3
H
26
H
OEAB OEBA
326
OEAB OEBA
X
Pin numbers shown are for the DL, DW, and JT packages.
Figure 1. Bus-Management Functions