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參數(shù)資料
| 型號(hào)： | 74F138 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 1-of-8 decoder/demultiplexer |
| 中文描述： | 1 - 8解碼器/解復(fù)用器 |
| 文件頁(yè)數(shù)： | 5/8頁(yè) |
| 文件大小： | 85K |
| 代理商： | 74F138 |
Philips Semiconductors
Product specification
74F138
1-of-8 decoder/demultiplexer
February 14, 1991
5
AC ELECTRICAL CHARACTERISTICS
LIMITS
SYMBOL
PARAMETER
TEST
CONDITION
V
CC
= +5.0V
T
amb
= +25
°
C
C
L
= 50pF
R
L
= 500
V
CC
= +5.0V
±
10%
T
amb
= 0
°
C to +70
°
C
C
L
= 50pF
R
L
= 500
V
CC
= +5.0V
±
10%
T
amb
= –40
°
C to +85
°
C
C
L
= 50pF
R
L
= 500
UNIT
MIN
TYP
MAX
MIN
MAX
MIN
MAX
t
PLH
t
PHL
Propagation delay
An to Qn
Waveform 1, 2
3.5
4.0
5.6
6.1
7.0
8.0
3.5
4.0
8.0
9.0
3.0
3.5
8.5
9.0
ns
t
PLH
t
PHL
Propagation delay
E0 or E1
to Qn
Waveform 2
3.5
3.0
6.4
5.3
7.0
7.0
3.5
3.0
8.0
7.5
3.0
3.0
8.0
7.5
ns
t
PLH
t
PHL
Propagation delay
E2
to Qn
Waveform 1
4.0
3.5
6.2
5.6
8.0
7.5
4.0
3.5
9.0
8.5
4.0
3.5
9.5
8.5
ns
AC WAVEFORMS
For all waveforms, V
M
= 1.5V
V
M
V
M
V
M
V
M
Qn
An, E2
t
PHL
t
PLH
SF00179
Waveform 1.
Propagation Delay for Inverting Outputs
V
M
V
M
V
M
V
M
Qn
An, E0, E1
t
PHL
t
PLH
SF00180
Waveform 2. Propagation Delay for Non-Inverting Outputs
TEST CIRCUIT AND WAVEFORMS
t
w
90%
V
M
10%
90%
V
M
10%
90%
V
M
10%
90%
V
M
10%
NEGATIVE
PULSE
POSITIVE
PULSE
t
w
AMP (V)
0V
0V
t
THL (
t
f
)
INPUT PULSE REQUIREMENTS
rep. rate
t
w
t
TLH
2.5ns
t
THL
2.5ns
1MHz
500ns
Input Pulse Definition
V
CC
family
74F
D.U.T.
PULSE
GENERATOR
R
L
C
L
R
T
V
IN
V
OUT
Test Circuit for Totem-Pole Outputs
DEFINITIONS:
R
L
=
Load resistor;
see AC ELECTRICAL CHARACTERISTICS for value.
Load capacitance includes jig and probe capacitance;
see AC ELECTRICAL CHARACTERISTICS for value.
Termination resistance should be equal to Z
OUT
of
pulse generators.
C
L
=
R
T
=
t
THL (
t
f
)
t
TLH (
t
r
)
t
TLH (
t
r
)
AMP (V)
amplitude
3.0V
1.5V
V
M
SF00006
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 74F138D | 制造商:-- 功能描述:74F138D 制造商:n/a 功能描述:74F138D 制造商:North American Philips Discrete Products Div 功能描述:Demultiplexer/Decoder, 3 To 8 Line, 16 Pin, Plastic, SOP 制造商:NXP Semiconductors 功能描述:74F138D 制造商:Texas Instruments 功能描述:74F138D |
| 74F138DC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:3-To-8-Line Demultiplexer |
| 74F138FC | 制造商:Freescale Semiconductor 功能描述:74F138FC |
| 74F138LC | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| 74F138N | 制造商:NXP Semiconductors 功能描述:Demultiplexer/Decoder, 3 To 8 Line, 16 Pin, Plastic, DIP 制造商:Yageo / Phycomp 功能描述:Demultiplexer/Decoder, 3 To 8 Line, 16 Pin, Plastic, DIP |
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