Datasheet

SN54BCT125A, SN74BCT125A
QUADRUPLE BUS BUFFER GATES
WITH 3-STATE OUTPUTS
SCBS032F – SEPTEMBER 1988 – REVISED MARCH 2003
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
recommended operating conditions (see Note 3)
SN54BCT125A SN74BCT125A
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
IL
Low-level input voltage 0.8 0.8 V
I
IK
Input clamp current –18 –18 mA
I
OH
High-level output current –12 –15 mA
I
OL
Low-level output current 48 64 mA
T
A
Operating free-air temperature –55 125 0 70 °C
NOTE 3: All unused inputs of the device must be held at V
CC
or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN54BCT125A SN74BCT125A
UNIT
PARAMETER
TEST
CONDITIONS
MIN TYP
†
MAX MIN TYP
†
MAX
UNIT
V
IK
V
CC
= 4.5 V, I
I
= –18 mA –1.2 –1.2 V
I
OH
= –3 mA 2.4 3.3 2.4 3.3
V
OH
V
CC
= 4.5 V
I
OH
= –12 mA 2 3.2
V
I
OH
= –15 mA 2 3.1
V
OL
V
CC
=45V
I
OL
= 48 mA 0.38 0.55
V
V
OL
V
CC
=
4
.
5
V
I
OL
= 64 mA 0.42 0.55
V
I
I
V
CC
= 0, V
I
= 7 V 0.1 0.1 mA
I
IH
V
CC
= 5.5 V, V
I
= 2.7 V 35 25 µA
I
IL
V
CC
= 5.5 V, V
I
= 0.5 V –20 –20 µA
I
OZH
V
CC
= 5.5 V, V
O
= 2.7 V 50 50 µA
I
OZL
V
CC
= 5.5 V, V
O
= 0.5 V –50 –50 µA
I
OS
‡
V
CC
= 5.5 V, V
O
= 0 –100 –225 –100 –225 mA
I
CCH
V
CC
= 5.5 V, Outputs open 19 31 19 31 mA
I
CCL
V
CC
= 5.5 V, Outputs open 46 49 46 49 mA
I
CCZ
V
CC
= 5.5 V, Outputs open 6 14 6 14 mA
C
i
V
CC
= 5 V, V
I
= 2.5 V or 0.5 V 4 4 pF
C
o
V
CC
= 5 V, V
O
= 2.5 V or 0.5 V 9 9 pF
†
All typical values are at V
CC
= 5 V.
‡
Not more than one output should be tested at a time, and the duration of the test should not exceed one second.