Datasheet

SN64BCT757
OCTAL BUFFER/DRIVER
WITH OPEN-COLLECTOR OUTPUTS
SCBS479 – MARCH 1993 – REVISED MAY 1994
3–3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
recommended operating conditions (see Note 2)
MIN NOM MAX UNIT
V
CC
Supply voltage 4.5 5 5.5 V
V
IH
High-level input voltage 2 V
V
IL
Low-level input voltage 0.8 V
V
OH
High-level output voltage 5.5 V
I
IK
Input clamp current –18 mA
I
OL
Low-level output current 64 mA
∆t/∆V
CC
Power-up ramp rate 2 µs/V
T
A
Operating free-air temperature –40 85 °C
NOTE 2: Unused or floating inputs must be held high or low.
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
OZ
V
CC
= 0 to 2.3 V (power up), V
O
= 2.7 V, OE = 0.8 V or OE = 2 V 50 µA
I
OZ
V
CC
= 1.8 V to 0 (power down), V
O
= 2.7 V, OE = 0.8 V or OE = 2 V 50 µA
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 34
I
CC
V
CC
= 5.5 V, Outputs open
Outputs low
77
mA
OE and OE inactive 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
O
= 2.5 V or 0.5 V 4 pF
†
All typical values are at V
CC
= 5 V, T
A
= 25°C.
switching characteristics over recommended range of supply voltage, C
L
= 50 pF (unless
otherwise noted) (see Note 3)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
V
CC
= 5 V,
T
A
= 25°C
T
A
= –40°C
to 85°C
T
A
= 0°C
to 70°C
UNIT
(INPUT)
(OUTPUT)
MIN TYP MAX MIN MAX MIN MAX
t
PLH
A
Y
6.9 8.3 9.6 6.5 11.2 6.6 10.1
ns
t
PHL
A
Y
2.4 4.2 6 1.9 7 2 6.6
ns
t
PLH
2OE
Y
11 14.8 17.9 10.4 21.3 10.8 19.7
ns
t
PHL
2OE
Y
2.9 4.6 6.2 2.6 7.5 2.6 6.9
ns
t
PLH
1OE
Y
11.4 13.9 16.1 8.9 19.9 10 18
ns
t
PHL
1OE
Y
4.4 6.1 7.8 4 9.2 4 8.5
ns
NOTE 3: Load circuits and voltage waveforms are shown in Section 1.