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參數(shù)資料
| 型號： | SN74LS138N |
| 廠商： | MOTOROLA INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | 1-OF-8 DECODER/ DEMULTIPLEXER |
| 中文描述： | LS SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, PDIP16 |
| 封裝： | PLASTIC, DIP-16 |
| 文件頁數(shù)： | 3/5頁 |
| 文件大?。?/td> | 185K |
| 代理商： | SN74LS138N |
5-232
FAST AND LS TTL DATA
SN54/74LS138
GUARANTEED OPERATING RANGES
Symbol
Parameter
Min
Typ
Max
Unit
VCC
Supply Voltage
54
74
4.5
4.75
5.0
5.0
5.5
5.25
V
TA
Operating Ambient Temperature Range
54
74
–55
0
25
25
125
70
°
C
IOH
IOL
Output Current — High
54, 74
–0.4
mA
Output Current — Low
54
74
4.0
8.0
mA
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE
(unless otherwise specified)
Symbol
Parameter
Limits
Unit
Test Conditions
Min
Typ
Max
VIH
Input HIGH Voltage
2.0
V
Guaranteed Input HIGH Voltage for
All Inputs
VIL
Input LOW Voltage
54
0.7
V
Guaranteed Input LOW Voltage for
All Inputs
74
0.8
VIK
Input Clamp Diode Voltage
–0.65
–1.5
V
VCC = MIN, IIN = –18 mA
VOH
Output HIGH Voltage
54
2.5
3.5
V
or VIL per Truth Table
VCC = MIN, IOH = MAX, VIN = VIH
74
2.7
3.5
V
VOL
Output LOW Voltage
54, 74
0.25
0.4
V
IOL = 4.0 mA
VCC = VCC MIN,
per Truth Table
74
0.35
0.5
V
IOL = 8.0 mA
VIN = VIL or VIH
IIH
Input HIGH Current
20
μ
A
VCC = MAX, VIN = 2.7 V
VCC = MAX, VIN = 7.0 V
VCC = MAX, VIN = 0.4 V
VCC = MAX
VCC = MAX
0.1
mA
IIL
IOS
ICC
Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.
Input LOW Current
–0.4
mA
Short Circuit Current (Note 1)
–20
–100
mA
Power Supply Current
10
mA
AC CHARACTERISTICS
(TA = 25
°
C)
Symbol
Parameter
Delay
Limits
Unit
Test Conditions
Levels of
Min
Typ
Max
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
Propagation Delay
Address to Output
2
2
13
27
20
41
ns
CL = 15 pF
Propagation Delay
Address to Output
3
3
18
26
27
39
ns
VCC = 5.0 V
Propagation Delay E1 or E2
Enable to Output
2
2
12
21
18
32
ns
Propagation Delay E3
Enable to Output
3
3
17
25
26
38
ns
AC WAVEFORMS
Figure 1
Figure 2
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SN74LS138 | LOW POWER SCHOTTKY |
| SN74LS138D | LOW POWER SCHOTTKY |
| SN74LS138N | LOW POWER SCHOTTKY |
| SN74LS139 | LOW POWER SCHOTTKY |
| SN74LS139D | LOW POWER SCHOTTKY |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SN74LS138N | 制造商:Texas Instruments 功能描述:IC 74LS 74LS138 DIP16 5.25V |
| SN74LS138N | 制造商:Texas Instruments 功能描述:IC 74LS 74LS138 DIP16 5.25V |
| SN74LS138N3 | 制造商:Texas Instruments 功能描述: |
| SN74LS138NE4 | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 3-line to 8-line Decoder/Demltplxr 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(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| SN74LS138NMOT88 | 制造商:Motorola 功能描述:74LS138N |
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