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參數資料
| 型號： | HD74HC238 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Octal Buffers And Line Drivers With 3-State Outputs 20-LCCC -55 to 125 |
| 中文描述： | 3至8線解碼器/解復用器 |
| 文件頁數： | 1/9頁 |
| 文件大小： | 51K |
| 代理商： | HD74HC238 |
HD74HC238
3-to-8-line Decoder/Demultiplexer
Description
The HD74HC238 has 3 binary select inputs (A, B and C). If the device is enabled these inputs determine
which one of the eight normally high outputs will go low. Two active low and one active high enables (G
1
,
G
2A
and G
2B
) are provided to ease the cascading of decoders.
Features
High Speed Operation: t
pd
(Data to Y) = 15 ns typ (C
L
= 50 pF)
High Output Current: Fanout of 10 LSTTL Loads
Wide Operating Voltage: V
CC
= 2 to 6 V
Low Input Current: 1 μA max
Low Quiescent Supply Current: I
CC
(static) = 4 μA max (Ta = 25°C)
Function Table
Inputs
Enable
Select
Outputs
G
1
X
G
2A
X
G
2B
H
C
B
A
Y
0
L
Y
1
L
Y
2
L
Y
3
L
Y
4
L
Y
5
L
Y
6
L
Y
7
L
X
X
X
X
H
X
X
X
X
L
L
L
L
L
L
L
L
L
X
X
X
X
X
L
L
L
L
L
L
L
L
H
L
L
L
L
L
H
L
L
L
L
L
L
L
H
L
L
L
L
H
L
H
L
L
L
L
L
L
H
L
L
L
H
L
L
L
H
L
L
L
L
L
H
L
L
L
H
H
L
L
L
H
L
L
L
L
H
L
L
H
L
L
L
L
L
L
H
L
L
L
H
L
L
H
L
H
L
L
L
L
L
H
L
L
H
L
L
H
H
L
L
L
L
L
L
L
H
L
H
L
L
H
H
H
L
L
L
L
L
L
L
H
相關PDF資料 |
PDF描述 |
|---|---|
| HD74HC240 | Octal Buffers And Line Drivers With 3-State Outputs 20-CDIP -55 to 125 |
| HD74HC241 | Octal Buffers And Line Drivers With 3-State Outputs 20-CFP -55 to 125 |
| HD74HC242 | Octal Buffers And Line Drivers With 3-State Outputs 20-LCCC -55 to 125 |
| HD74HC243 | Octal Buffers And Line Drivers With 3-State Outputs 20-CDIP -55 to 125 |
| HD74HC244 | Octal Buffers And Line Drivers With 3-State Outputs 20-CDIP -55 to 125 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| HD74HC238FP | 制造商:Renesas Electronics Corporation 功能描述:Decoder/Demultiplexer Single 3-to-8 16-Pin SOP |
| HD74HC238FP(EL-E) | 制造商:Renesas Electronics Corporation 功能描述: |
| HD74HC238P-E | 制造商:Renesas Electronics Corporation 功能描述: |
| HD74HC240FP-E | 制造商:Renesas Electronics Corporation 功能描述:Logic, 74HC series, SOP-20 |
| HD74HC240FPEL-E | 制造商:Renesas Electronics Corporation 功能描述:Logic, 74HC series, SOP-20 |
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