Datasheet

SN54LVC157A, SN74LVC157A
SCAS292Q –JANUARY 1993–REVISED DECEMBER 2010 www.ti.com
Electrical Characteristics
over recommended operating free-air temperature range (unless otherwise noted)
SN74LVC157A
PARAMETER TEST CONDITIONS V
CC
T
A
= 25°C –40 TO 85°C –40 TO 125°C UNIT
MIN TYP MAX MIN MAX MIN MAX
I
OH
= –100 mA 1.65 V to 3.6 V V
CC
– 0.2 V
CC
– 0.2 V
CC
– 0.3
I
OH
= –4 mA 1.65 V 1.29 1.2 1.05
I
OH
= –8 mA 2.3 V 1.9 1.7 1.55
V
OH
V
2.7 V 2.2 2.2 2.05
I
OH
= –12 mA
3 V 2.4 2.4 2.25
I
OH
= –24 mA 3 V 2.3 2.2 2
I
OL
= 100 mA 1.65 V to 3.6 V 0.1 0.2 0.3
I
OL
= 4 mA 1.65 V 0.24 0.45 0.6
V
OL
I
OL
= 8 mA 2.3 V 0.3 0.7 0.75 V
I
OL
= 12 mA 2.7 V 0.4 0.4 0.6
I
OL
= 24 mA 3 V 0.55 0.55 0.8
I
I
All inputs V
I
= 5.5 V or GND 3.6 V ±1 ±5 ±20 mA
V
I
= V
CC
I
CC
I
O
= 0 3.6 V 1 10 40 mA
or GND
One input at V
CC
– 0.6 V,
ΔI
CC
2.7 V to 3.6 V 500 500 5000 mA
Other inputs at V
CC
or GND
C
i
V
I
= V
CC
or GND 3.3 V 5 pF
Switching Characteristics
over recommended operating free-air temperature range (unless otherwise noted) (see Figure 1)
SN54LVC157A
FROM TO
PARAMETER V
CC
–55 TO 125°C UNIT
(INPUT) (OUTPUT)
MIN MAX
2.7 V 6.2
A or B
3.3 V ± 0.3 V 0.8 5.4
2.7 V 8.2
t
pd
A/B Y ns
3.3 V ± 0.3 V 0.8 7
2.7 V 7.8
G
3.3 V ± 0.3 V 0.8 6.5
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