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參數(shù)資料
| 型號(hào)： | SN54LV157A |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | QUADRUPLE 2 LINE TO 1 LINE DATA SELECTORS / MULTIPLEXERS |
| 中文描述： | 四2線1線數(shù)據(jù)選擇器/多路復(fù)用器 |
| 文件頁(yè)數(shù)： | 5/15頁(yè) |
| 文件大?。?/td> | 357K |
| 代理商： | SN54LV157A |
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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
(INPUT)
TO
LOAD
TA = 25
°
C
TYP
7.4*
SN54LV157A
MIN
1*
SN74LV157A
MIN
1
UNIT
(OUTPUT)
CAPACITANCE
MIN
MAX
15.9*
MAX
19.5*
MAX
19.5
A or B
Y
tpd
A/B
Y
CL = 15 pF
7.9*
19.4*
1*
23.5*
1
23.5
ns
G
Y
7.8*
19.8*
1*
24*
1
24
A or B
Y
9.4
18.8
1
22
1
22
tpd
A/B
G
Y
Y
CL = 50 pF
10.8
9.6
22.3
22.7
1
1
26
1
1
26
ns
26.5
26.5
* 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
5.2*
SN54LV157A
SN74LV157A
UNIT
(OUTPUT)
CAPACITANCE
MIN
MAX
9.7*
MIN
1*
MAX
11.5*
MIN
MAX
11.5
A or B
Y
1
tpd
A/B
Y
CL = 15 pF
5.8*
13.2*
1*
15.5*
1
15.5
ns
G
Y
5.5*
13.6*
1*
16*
1
16
A or B
Y
6.7
13.2
1
15
1
15
tpd
A/B
G
Y
Y
CL = 50 pF
7.6
16.7
17.1
1
1
19
1
1
19
ns
7
19.5
19.5
* 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
3.6*
SN54LV157A
MIN
1*
SN74LV157A
MIN
1
UNIT
(OUTPUT)
CAPACITANCE
MIN
MAX
6.4*
MAX
7.5*
MAX
7.5
A or B
Y
tpd
A/B
Y
CL = 15 pF
4.1*
8.1*
1*
9.5*
1
9.5
ns
G
Y
3.8*
8.6*
1*
10*
1
10
A or B
Y
4.8
8.4
1
9.5
1
9.5
tpd
A/B
G
Y
Y
CL = 50 pF
5.4
10.1
10.6
1
1
11.5
12
1
1
11.5
12
ns
5
* 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
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
0.3
0.8
V
0.8
V
3.2
V
2.31
V
Low-level dynamic input voltage
0.99
V
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