参数资料
型号: SN74AHCT157DGV
厂商: TEXAS INSTRUMENTS INC
元件分类: 编、解码器及复用、解复用
英文描述: AHCT/VHCT SERIES, QUAD 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO16
封装: PLASTIC, TVSOP-16
文件页数: 4/7页
文件大小: 121K
代理商: SN74AHCT157DGV
SN54AHCT157, SN74AHCT157
QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS
SCLS347G – MAY 1996 – REVISED OCTOBER 1998
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
TA = 25°C
SN54AHCT157
SN74AHCT157
UNIT
PARAMETER
TEST CONDITIONS
VCC
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
V
IOH = –50 mA
45 V
4.4
4.5
4.4
V
VOH
IOH = –8 mA
4.5 V
3.94
3.8
V
IOL = 50 mA
45 V
0.1
V
VOL
IOL = 8 mA
4.5 V
0.36
0.44
V
II
VI = VCC or GND
5.5 V
±0.1
±1
mA
ICC
VI = VCC or GND,
IO = 0
5.5 V
2
20
mA
ICC
One input at 3.4 V,
Other inputs at VCC or GND
5.5 V
1.35
1.5
mA
Ci
VI = VCC or GND
5 V
2
10
pF
This is the increase in supply current for each input at one of the specified TTL voltage levels rather than 0 V or VCC.
switching characteristics over recommended operating free-air temperature range,
VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1)
FROM
TO
LOAD
SN54AHCT157
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
LOAD
CAPACITANCE
TA = 25°C
MIN
MAX
UNIT
(INPUT)
(OUTPUT)
CAPACITANCE
MIN
TYP
MAX
MIN
MAX
tPLH*
AorB
Y
CL =15 pF
4.1
6.4
1
7.5
ns
tPHL*
A or B
Y
CL = 15 pF
4.1
6.4
1
7.5
ns
tPLH*
A/B
Y
CL =15 pF
5.3
8.1
1
9.5
ns
tPHL*
A/B
Y
CL = 15 pF
5.3
8.1
1
9.5
ns
tPLH*
G
Y
CL =15 pF
5.6
8.6
1
10
ns
tPHL*
G
Y
CL = 15 pF
5.6
8.6
1
10
ns
tPLH
AorB
Y
CL =50 pF
5.6
8.7
1
10.8
ns
tPHL
A or B
Y
CL = 50 pF
5.6
8.7
1
10.8
ns
tPLH
A/B
Y
CL =50 pF
6.8
10.4
1
13.2
ns
tPLH
A/B
Y
CL = 50 pF
6.8
10.4
1
13.2
ns
tPLH
G
Y
CL =50 pF
7.1
11
1
13.5
ns
tPHL
G
Y
CL = 50 pF
7.1
11
1
13.5
ns
* On products compliant to MIL-PRF-38535, this parameter is not production tested.
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
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