參數(shù)資料
型號(hào)： SN74HC157D
廠商： TEXAS INSTRUMENTS INC
元件分類： 編、解碼器及復(fù)用、解復(fù)用
英文描述： HC/UH SERIES, QUAD 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO16
封裝： GREEN, PLASTIC, SOIC-16
文件頁數(shù)： 16/20頁
文件大?。?/td> 802K
代理商： SN74HC157D
SN54HC157, SN74HC157
QUADRUPLE 2LINE TO 1LINE DATA SELECTORS/MULTIPLEXERS
SCLS113D DECEMBER 1982 REVISED SEPTEMBER 2003
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
switching characteristics over recommended operating free-air temperature range, CL = 150 pF
(unless otherwise noted) (see Figure 1)
PARAMETER
FROM
TO
VCC
TA = 25°C
SN54HC157
SN74HC157
UNIT
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
2 V
81
190
290
235
A or B
Y
4.5 V
23
38
58
47
A or B
Y
6 V
18
33
49
41
2 V
81
210
320
260
tpd
A/B
Y
4.5 V
23
42
64
52
ns
tpd
A/B
Y
6 V
18
36
54
45
ns
2 V
91
190
290
235
G
Y
4.5 V
24
38
58
47
G
Y
6 V
18
33
49
41
2 V
45
210
315
265
tt
Y
4.5 V
17
42
63
53
ns
tt
Y
6 V
13
36
53
45
ns
operating characteristics, TA = 25°C
PARAMETER
TEST CONDITIONS
TYP
UNIT
Cpd
Power dissipation capacitance
No load
40
pF
PARAMETER MEASUREMENT INFORMATION
VOLTAGE WAVEFORM
INPUT RISE AND FALL TIMES
50%
10%
90%
VCC
0 V
tr
tf
Input
VOLTAGE WAVEFORMS
PROPAGATION DELAY AND OUTPUT TRANSITION TIMES
50%
10%
90%
VCC
VOH
VOL
0 V
tr
tf
Input
In-Phase
Output
50%
tPLH
tPHL
50%
10%
90%
VOH
VOL
tr
tf
tPHL
tPLH
Out-of-Phase
Output
Test
Point
From Output
Under Test
CL
(see Note A)
LOAD CIRCUIT
NOTES: A. CL includes probe and test-fixture capacitance.
B. Phase relationships between waveforms were chosen arbitrarily. All input pulses are supplied by generators having the following
characteristics: PRR
≤ 1 MHz, ZO = 50 , tr = 6 ns, tf = 6 ns.
C. The outputs are measured one at a time with one input transition per measurement.
D. tPLH and tPHL are the same as tpd.
Figure 1. Load Circuit and Voltage Waveforms
相關(guān)PDF資料
PDF描述
SN74HC157DT HC/UH SERIES, QUAD 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO16
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SN74HC163PWR HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, PDSO16
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SN74HC157D 制造商:Texas Instruments 功能描述:ICS DECODERS/ENCODERS/MULTIPLEXERS/DEMU
SN74HC157DB 制造商:Texas Instruments 功能描述:74HC Quad 2-Channel Multiplexer Tube
SN74HC157DBR 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 QUAD 2Ln To 1Ln Data Selector Multiplexer RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
SN74HC157DBRE4 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 QUAD 2Ln To 1Ln Data Selector Multiplexer RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
SN74HC157DBRG4 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 QUAD 2Ln To 1Ln Data Selector Multiplexer RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
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