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參數資料
| 型號： | HD74HC243 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Octal Buffers And Line Drivers With 3-State Outputs 20-CDIP -55 to 125 |
| 中文描述： | 四。總線收發器（3態輸出），四。總線收發器（帶noninverted三態輸出） |
| 文件頁數： | 1/10頁 |
| 文件大小： | 60K |
| 代理商： | HD74HC243 |
HD74HC242/HD74HC243
Quad. Bus Transceivers (with 3-state outputs)
Quad. Bus Transceivers (with noninverted 3-state outputs)
Description
The HD74HC242 is an inverting buffer and the HD74HC243 is a noninverting buffer. Each device has one
active high enable (GBA), and one active low enable (
G
AB). GBA enables the A output and
G
AB enables
the B outputs. The device does not have schmitt trigger inputs.
Features
High Speed Operation: t
pd
= 10 ns typ (C
L
= 50 pF)
High Output Current: Fanout of 15 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
HD74HC242
HC74HC243
Control inputs
G
AB
Data Port Status
Data Port Status
GBA
A
O
B
A
B
H
H
I
O
I
L
H
Z
Z
Z
Z
H
L
Z
Z
O
Z
Z
L
I
O :
O
:
Z
L
I
I
O
:
Input
Output
Inverting Output
Hight Impedance
:
相關PDF資料 |
PDF描述 |
|---|---|
| HD74HC244 | Octal Buffers And Line Drivers With 3-State Outputs 20-CDIP -55 to 125 |
| HD74HC245 | Octal Buffers And Line Drivers With 3-State Outputs 20-LCCC -55 to 125 |
| HD74HC251 | Octal Buffers And Line Drivers With 3-State Outputs 20-CDIP -55 to 125 |
| HD74HC253 | Octal Buffers And Line Drivers With 3-State Outputs 20-CFP -55 to 125 |
| HD74HC257 | 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 |
|---|---|
| HD74HC243FP-E | 制造商:Renesas Electronics Corporation 功能描述: |
| HD74HC244FP | 制造商:Hitachi 功能描述:HC/UH SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, SOIC-20 |
| HD74HC244FP(E) | 制造商:Renesas Electronics Corporation 功能描述: |
| HD74HC244FP-E | 制造商:Renesas Electronics Corporation 功能描述:Logic, 74HC series, SOP-20 |
| HD74HC244FPEL-E | 制造商:Renesas Electronics Corporation 功能描述:Logic, 74HC series, SOP-20 |
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