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參數(shù)資料
| 型號(hào)： | HD74HCT242 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Quad. Bus Transceivers (with 3-state outputs) |
| 中文描述： | 四。總線收發(fā)器（3態(tài)輸出） |
| 文件頁數(shù)： | 1/8頁 |
| 文件大小： | 57K |
| 代理商： | HD74HCT242 |
HD74HCT242/HD74HCT243
Quad. Bus Transceivers (with 3-state outputs)
Description
The HD74HCT242 is an inverting buffer and the HD74HCT243 is a noninverting buffer. Each device has
one active high enable (GBA), and one active low enable (
G
AB). GBA enables the A outputs and
G
AB
enables the B outputs.
The device does not have schmitt trigger inputs.
Features
LSTTL Output Logic Level Compatibility as well as CMOS Output Compatibility
High Speed Operation: t
pd
(A to Y) = 9.5 ns typ (C
L
= 50 pF)
High Output Current: Fanout of 15 LSTTL Loads
Wide Operating Voltage: V
CC
= 4.5 to 5.5 V
Low Input Current: 1 μA max
Low Quiescent Supply Current: I
CC
(static) = 4 μA max (Ta = 25°C)
Function Table
HD74HCT242
HD74HCT243
Control Inputs
G
AB
H
Data Port Status
Data Port Status
G
BA
H
A
O
B
A
B
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
High Impedance
:
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HD74HCT243 | Quad. Bus Transceivers (with 3-state outputs) |
| HD74HCT245 | Octal D-Type Transparent Latches with 3-state Outputs 20-CDIP -55 to 125 |
| HD74HCT244 | Octal D-Type Transparent Latches with 3-state Outputs 20-LCCC -55 to 125 |
| HD74HCT373 | Octal D-Type Transparent Latches with 3-state Outputs 20-CFP -55 to 125 |
| HD74HCT533 | Octal D-Type Transparent Latches with 3-state Outputs 20-CDIP -55 to 125 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HD74HCT244FP-E | 制造商:Renesas Electronics Corporation 功能描述:Logic, 74HC series, SOP-20 |
| HD74HCT244FPEL-E | 制造商:Renesas Electronics Corporation 功能描述:Logic, 74HC series, SOP-20 |
| HD74HCT373FP(E) | 制造商:Renesas Electronics 功能描述:Bulk |
| HD74HCT373-T | 制造商:Renesas Electronics Corporation 功能描述: |
| HD74HCT374FP(E) | 制造商:Renesas Electronics 功能描述:Bulk |
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