參數(shù)資料
型號(hào): SN74AHC157DB
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): 5/19頁(yè)
文件大小: 653K
代理商: SN74AHC157DB
SN54AHC157, SN74AHC157
QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS
SCLS345I
MAY 1996
REVISED JULY 2003
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
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
4.1*
SN54AHC157
MIN
1*
SN74AHC157
MIN
1
UNIT
(OUTPUT)
CAPACITANCE
MIN
MAX
6.4*
MAX
7.5*
MAX
7.5
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPLH
tPLH
tPHL
A or B
Y
CL= 15 pF
CL = 15 pF
ns
4.1*
6.4*
1*
7.5*
1
7.5
A/B
Y
CL= 15 pF
CL = 15 pF
5.3*
8.1*
1*
9.5*
1
9.5
ns
5.3*
8.1*
1*
9.5*
1
9.5
G
Y
CL= 15 pF
CL = 15 pF
5.6*
5.6*
8.6*
8.6*
1*
1*
10*
10*
1
1
10
10
ns
A or B
Y
CL= 50 pF
CL = 50 pF
5.6
8.4
1
9.5
1
9.5
ns
5.6
8.4
1
9.5
1
9.5
A/B
Y
CL= 50 pF
CL = 50 pF
6.8
10.1
1
11.5
1
11.5
ns
6.8
10.1
1
11.5
1
11.5
G
Y
CL= 50 pF
CL = 50 pF
7.1
7.1
10.6
10.6
1
1
12
12
1
1
12
12
ns
* On products compliant to MIL-PRF-38535, this parameter is not production tested.
noise characteristics V
CC
= 5 V, C
L
= 50 pF, T
A
= 25
°
C (see Note 5)
PARAMETER
SN74AHC157
MIN
TYP
UNIT
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
0.8
V
0.8
V
4.8
V
3.5
V
Low-level dynamic input voltage
1.5
V
operating characteristics, V
CC
= 5 V, T
A
= 25
°
C
PARAMETER
TEST CONDITIONS
TYP
UNIT
Cpd
Power dissipation capacitance
No load,
f = 1 MHz
11
pF
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