Datasheet

SN54ABT8652, SN74ABT8652
SCAN TEST DEVICES
WITH OCTAL BUS TRANSCEIVERS AND REGISTERS
SCBS122F – AUGUST 1992 – REVISED DECEMBER 1996
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
functional block diagram
Boundary-Control
Register
Bypass Register
Boundary-Scan Register
Instruction Register
TDI
TMS
TCK
TD
O
TAP
Controller
V
CC
V
CC
One of Eight Channels
OEAB
OEBA
CLKBA
SBA
CLKAB
SAB
A1
B1
1D
C1
1D
C1
25
13
3
26
28
27
1
2
4
16
14
15
Pin numbers shown are for the DL, DW, and JT packages.