
SCES339E SEPTEMBER 2000 REVISED APRIL 2005
4
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
(INPUT)
TO
LOAD
TA = 25
°
C
TYP
SN54LV20A
MIN
SN74LV20A
MIN
UNIT
(OUTPUT)
CAPACITANCE
MIN
MAX
MAX
MAX
tpd
A, B, C, or D
Y
CL = 15 pF
6.8*
11.6*
1*
13.5*
1
13.5
ns
tpd
A, B, C, or D
Y
CL = 50 pF
9.2
15.3
1
18.5
1
18.5
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
(INPUT)
TO
LOAD
TA = 25
°
C
TYP
SN54LV20A
SN74LV20A
UNIT
(OUTPUT)
CAPACITANCE
MIN
MAX
MIN
MAX
MIN
MAX
tpd
A, B, C, or D
Y
CL = 15 pF
4.9*
6.6*
1*
8*
1
8
ns
tpd
A, B, C, or D
Y
CL = 50 pF
6.5
10.1
1
11.5
1
11.5
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
(INPUT)
TO
LOAD
TA = 25
°
C
TYP
SN54LV20A
MIN
SN74LV20A
MIN
UNIT
(OUTPUT)
CAPACITANCE
MIN
MAX
MAX
MAX
tpd
A, B, C, or D
Y
CL = 15 pF
3.7*
5*
1*
6*
1
6
ns
tpd
A, B, C, or D
Y
CL = 50 pF
4.8
7
1
8
1
8
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
SN74LV20A
MIN
UNIT
TYP
MAX
VOL(P)
VOL(V)
VOH(V)
VIH(D)
VIL(D)
NOTE 5: Characteristics are for surface-mount packages only.
Quiet output, maximum dynamic VOL
Quiet output, minimum dynamic VOL
Quiet output, minimum dynamic VOH
High-level dynamic input voltage
0.2
0.8
V
0
0.8
V
3.2
V
2.31
V
Low-level dynamic input voltage
0.99
V
operating characteristics, T
A
= 25
°
C
PARAMETER
TEST CONDITIONS
VCC
3.3 V
TYP
20.5
UNIT
Cpd
Power dissipation capacitance
CL = 50 pF,
f = 10 MHz
pF
5 V
23.9
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