Datasheet

SN54ABTH18502A, SN54ABTH182502A, SN74ABTH18502A, SN74ABTH182502A
SCAN TEST DEVICES
WITH 18-BIT UNIVERSAL BUS TRANSCEIVERS
SCBS164E – AUGUST 1993 – REVISED DECEMBER 1996
32
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
recommended operating conditions
SN54ABTH182502A SN74ABTH182502A
UNIT
MIN MAX MIN MAX
UNIT
V
CC
Supply voltage 4.5 5.5 4.5 5.5 V
V
IH
High-level input voltage 2 2 V
V
IL
Low-level input voltage 0.8 0.8 V
V
I
Input voltage 0 V
CC
0 V
CC
V
I
OH
High level out
p
ut current
A port, TDO –24 –32
mA
I
OH
High
-
le
v
el
o
u
tp
u
t
c
u
rrent
B port –12 –12
mA
I
OL
Low level out
p
ut current
A port, TDO 48 64
mA
I
OL
Lo
w-
le
v
el
o
u
tp
u
t
c
u
rrent
B port 12 12
mA
∆t/∆v Input transition rise or fall rate 10 10 ns/V
T
A
Operating free-air temperature –55 125 –40 85 °C
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.