Datasheet

SN74BCT756
OCTAL BUFFER/DRIVER
WITH OPEN-COLLECTOR OUTPUTS
SCBS056B – OCTOBER 1990 – REVISED JULY 1997
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP
†
MAX UNIT
V
IK
V
CC
= 4.5 V, I
I
= –18 mA –1.2 V
I
OH
V
CC
= 4.5 V, V
OH
= 5.5 V 0.1 mA
V
OL
V
CC
= 4.5 V, I
OL
= 64 mA 0.42 0.55 V
I
I
V
CC
= 5.5 V, V
I
= 7 V 0.1 mA
I
IH
V
CC
= 5.5 V, V
I
= 2.7 V 20 µA
I
IL
V
CC
= 5.5 V, V
I
= 0.5 V –1 mA
Outputs high 21 33
I
CC
V
CC
= 5.5 V, Outputs open
Outputs low
55 86
mA
OE disable 6 10
C
i
V
CC
= 5 V, V
I
= 2.5 V or 0.5 V 6 pF
C
o
V
CC
= 5 V, V
I
= 2.5 V or 0.5 V 10 pF
†
All typical values are at V
CC
= 5 V, T
A
= 25°C.
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature, C
L
= 50 pF (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
V
CC
= 5 V,
C
L
= 50 pF,
R1 = 500 Ω,
R2 = 500 Ω,
T
A
= 25°C
V
CC
= 4.5 to 5.5 V,
C
L
= 50 pF,
R1 = 500 Ω,
R2 = 500 Ω,
T
A
= MIN to MAX
‡
UNIT
MIN TYP MAX MIN MAX
t
PLH
A
Y
6.2 8.5 10.5 6.2 11.3
ns
t
PHL
A
Y
0.5 2 4.1 0.5 4.2
ns
t
PLH
OE
Y
8.2 12.5 14.8 8.2 16.5
ns
t
PHL
OE
Y
3.4 6.8 9.2 3.4 10.3
ns
‡
For conditions as MIN or MAX, use the appropriate value specified under recommended operating conditions.