Datasheet

SN54BCT8240A, SN74BCT8240A
SCAN TEST DEVICES
WITH OCTAL INVERTING BUFFERS
SCBS067E – FEBRUARY 1990 – REVISED DECEMBER 1996
16
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
recommended operating conditions
SN54BCT8240A SN74BCT8240A
UNIT
MIN NOM MAX MIN NOM MAX
UNIT
V
CC
Supply voltage 4.5 5 5.5 4.5 5 5.5 V
V
IH
High-level input voltage 2 2 V
V
IHH
Double-high-level input voltage TMS 10 12 10 12 V
V
IL
Low-level input voltage 0.8 0.8 V
I
IK
Input clamp current –18 –18 mA
I
OH
High level out
p
ut current
TDO –3 –3
mA
I
OH
High
-
le
v
el
o
u
tp
u
t
c
u
rrent
Any Y –12 –15
mA
I
OL
Low level out
p
ut current
TDO 20 24
mA
I
OL
Lo
w-
le
v
el
o
u
tp
u
t
c
u
rrent
Any Y 48 64
mA
T
A
Operating free-air temperature –55 125 0 70 °C