Datasheet

 
     
SCLS397F − APRIL 1998 − REVISED APRIL 2005
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
switching characteristics over recommended operating free-air temperature range,
V
CC
= 2.5 V ± 0.2 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
TO
LOAD
T
A
= 25°C SN54LV157A SN74LV157A
UNIT
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
LOAD
CAPACITANCE
MIN TYP MAX MIN MAX MIN MAX
UNIT
A or B Y 7.4* 15.9* 1* 19.5* 1 19.5
t
pd
A/B Y
C
L
= 15 pF
7.9* 19.4* 1* 23.5* 1 23.5
ns
t
pd
G Y
C
L
= 15 pF
7.8* 19.8* 1* 24* 1 24
ns
A or B Y 9.4 18.8 1 22 1 22
t
pd
A/B Y
C
L
= 50 pF
10.8 22.3 1 26 1 26
ns
t
pd
G Y
C
L
= 50 pF
9.6 22.7 1 26.5 1 26.5
ns
* On products compliant to MIL-PRF-38535, this parameter is not production tested.
switching characteristics over recommended operating free-air temperature range,
V
CC
= 3.3 V ± 0.3 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
TO
LOAD
T
A
= 25°C SN54LV157A SN74LV157A
UNIT
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
LOAD
CAPACITANCE
MIN TYP MAX MIN MAX MIN MAX
UNIT
A or B Y 5.2* 9.7* 1* 11.5* 1 11.5
t
pd
A/B Y
C
L
= 15 pF
5.8* 13.2* 1* 15.5* 1 15.5
ns
t
pd
G Y
C
L
= 15 pF
5.5* 13.6* 1* 16* 1 16
ns
A or B Y 6.7 13.2 1 15 1 15
t
pd
A/B Y
C
L
= 50 pF
7.6 16.7 1 19 1 19
ns
t
pd
G Y
C
L
= 50 pF
7 17.1 1 19.5 1 19.5
ns
* On products compliant to MIL-PRF-38535, this parameter is not production tested.
switching characteristics over recommended operating free-air temperature range,
V
CC
= 5 V ± 0.5 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
TO
LOAD
T
A
= 25°C SN54LV157A SN74LV157A
UNIT
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
LOAD
CAPACITANCE
MIN TYP MAX MIN MAX MIN MAX
UNIT
A or B Y 3.6* 6.4* 1* 7.5* 1 7.5
t
pd
A/B Y
C
L
= 15 pF
4.1* 8.1* 1* 9.5* 1 9.5
ns
t
pd
G Y
C
L
= 15 pF
3.8* 8.6* 1* 10* 1 10
ns
A or B Y 4.8 8.4 1 9.5 1 9.5
t
pd
A/B Y
C
L
= 50 pF
5.4 10.1 1 11.5 1 11.5
ns
t
pd
G Y
C
L
= 50 pF
5 10.6 1 12 1 12
ns
* On products compliant to MIL-PRF-38535, this parameter is not production tested.
noise characteristics, V
CC
= 3.3 V, C
L
= 50 pF, T
A
= 25°C (see Note 5)
PARAMETER
SN74LV157A
UNIT
PARAMETER
MIN TYP MAX
UNIT
V
OL(P)
Quiet output, maximum dynamic V
OL
0.3 0.8 V
V
OL(V)
Quiet output, minimum dynamic V
OL
−0.1 −0.8 V
V
OH(V)
Quiet output, minimum dynamic V
OH
3.2 V
V
IH(D)
High-level dynamic input voltage 2.31 V
V
IL(D)
Low-level dynamic input voltage 0.99 V
NOTE 5: Characteristics are for surface-mount packages only.
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