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參數(shù)資料
| 型號： | SN74LS251N |
| 廠商： | MOTOROLA INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | 8-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS |
| 中文描述： | LS SERIES, 8 LINE TO 1 LINE MULTIPLEXER, COMPLEMENTARY OUTPUT, PDIP16 |
| 封裝： | PLASTIC, DIP-16 |
| 文件頁數(shù)： | 4/8頁 |
| 文件大?。?/td> | 125K |
| 代理商： | SN74LS251N |
SN74LS251
http://onsemi.com
4
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE
(unless otherwise specified)
Limits
Symbol
Parameter
Min
Typ
Max
Unit
Test Conditions
V
IH
Input HIGH Voltage
2.0
V
Guaranteed Input HIGH Voltage for
All Inputs
V
IL
Input LOW Voltage
0.8
V
Guaranteed Input LOW Voltage for
All Inputs
V
IK
Input Clamp Diode Voltage
–0.65
–1.5
V
V
CC
= MIN, I
IN
= –18 mA
V
OH
Output HIGH Voltage
2.4
3.1
V
V
CC
= MIN, I
OH
= MAX, V
IN
= V
IH
or V
IL
per Truth Table
V
OL
Output LOW Voltage
0.25
0.4
V
I
OL
= 12 mA
V
CC
= V
CC
MIN,
V
IN
= V
IL
or V
IH
per Truth Table
0.35
0.5
V
I
OL
= 24 mA
I
OZH
Output Off Current HIGH
20
μ
A
V
CC
= MAX, V
OUT
= 2.7 V
I
OZL
Output Off Current LOW
–20
μ
A
V
CC
= MAX, V
OUT
= 0.4 V
I
IH
Input HIGH Current
20
μ
A
V
CC
= MAX, V
IN
= 2.7 V
0.1
mA
V
CC
= MAX, V
IN
= 7.0 V
I
IL
Input LOW Current
–0.4
mA
V
CC
= MAX, V
IN
= 0.4 V
I
OS
Short Circuit Current (Note 1)
–30
–130
mA
V
CC
= MAX
I
CC
Power Supply Current
10
mA
V
CC
= MAX, V
E
= 0 V
12
mA
V
CC
= MAX, V
E
= 4.5 V
Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.
AC CHARACTERISTICS
(T
A
= 25
°
C, V
CC
= 5.0 V)
Limits
Symbol
Parameter
Min
Typ
Max
Unit
Test Conditions
t
PLH
t
PHL
Propagation Delay,
Select to Z Output
20
21
33
33
ns
Figure 1
t
PLH
t
PHL
Propagation Delay,
Select to Z Output
29
28
45
45
ns
Figure 2
t
PLH
t
PHL
Propagation Delay,
Data to Z Output
10
9.0
15
15
ns
Figure 1
C
= 15 pF,
L
R
L
= 2.0 k
t
PLH
t
PHL
Propagation Delay,
Data to Z Output
17
18
28
28
ns
Figures 2
t
PZH
t
PZL
Output Enable Time
to Z Output
17
24
27
40
ns
Figures 4, 5
t
PZH
t
PZL
Output Enable Time
to Z Output
30
26
45
40
ns
Figures 3, 5
t
PHZ
t
PLZ
Output Disable Time
to Z Output
37
15
55
25
ns
Figures 3, 5
C
= 5.0 pF,
L
R
L
= 667 k
t
PHZ
t
PLZ
Output Disable Time
to Z Output
30
15
45
25
ns
Figures 4, 5
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| SN74LS251N | 制造商:Texas Instruments 功能描述:Logic - Multiplexer and Demultiplexer I |
| SN74LS251N3 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| SN74LS251NDS | 制造商:Motorola Inc 功能描述:LOGIC MUX, SINGLE, 8-INPUT, LS-TTL, 16 Pin, Plastic, DIP |
| SN74LS251NE4 | 功能描述:編碼器、解碼器、復用器和解復用器 8 To 1 Data Slctr/ Mltplxr W/3-St Otpt 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 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| SN74LS251NS | 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述: |
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