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參數(shù)資料
| 型號(hào)： | HD74HC640 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Octal Bus Transceivers (with 3-state outputs) |
| 中文描述： | 八路總線收發(fā)器（3態(tài)輸出） |
| 文件頁數(shù)： | 1/11頁 |
| 文件大小： | 69K |
| 代理商： | HD74HC640 |
HD74HC640/HD74HC643
Octal Bus Transceivers (with 3-state outputs)
Description
Each device has an active enable
G
and a direction control input, DIR. when DIR is high, data flows from
the A inputs to the B outputs. When DIR is low, data flows from the B inputs to the A outputs. The
HD74HC640 transfers inverted data from one bus to other and the HD74HC643 transfers inverted data
from the A bus to the B bus and true data from the B bus to the A bus.
Features
High Speed Operation: t
pd
= 12 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
Control Inputs
G
Operation
DIR
HD74HC640
B
data to A bus
A
data to B bus
HD74HC643
L
L
B data to A bus
A
data to B bus
L
H
H
X
Isolation
Isolation
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HD74HC643 | Octal Bus Transceivers (with 3-state outputs) |
| HD74HC646 | Octal Bus Transceivers/Registers with Multiplexed 3-state outputs |
| HD74HC648 | Octal Bus Transceivers/Registers with Multiplexed 3-state outputs |
| HD74HC651 | 8-Bit Universal Shift/Storage Registers With 3-State Outputs 20-CDIP -55 to 125 |
| HD74HC652 | Octal Bus Transceivers/Registers(with inverted 3-state outputs) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HD74HC640P | 制造商:Renesas Electronics Corporation 功能描述:Bus XCVR Single 8-CH 3-ST 20-Pin PDIP |
| HD74HC684P(E) | 制造商:Renesas Electronics Corporation 功能描述: |
| HD74HC688FP(E) | 制造商:Renesas Electronics Corporation 功能描述: |
| HD74HC73P | 制造商:Renesas Electronics 功能描述:74HC Dual J-K Flip-Flop with Preset and Clear Bulk |
| HD74HC74FP-E | 制造商:Renesas Electronics Corporation 功能描述:Flip Flop D-Type Pos-Edge 2-Element 14-Pin SOP 制造商:Renesas Electronics Corporation 功能描述:Logic, 74HC series, SOP-14 |
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