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參數資料
| 型號： | KK74AC643N |
| 廠商： | KODENSHI CORP. |
| 英文描述： | Octal 3-State Bus Transceiver High-Speed Silicon-Gate CMOS |
| 中文描述： | 八路三態總線收發器高速硅柵CMOS |
| 文件頁數： | 1/6頁 |
| 文件大小： | 239K |
| 代理商： | KK74AC643N |
TECHNICAL DATA
Octal 3-State Bus Transceiver
High-Speed Silicon-Gate CMOS
K K
74AC643
ORDERING INFORMATION
KK
74AC643N Plastic
KK
74AC643DW SOIC
T
A
= -40
°
to 85
°
C for all packages
The
KK
74AC643 is identical in pinout to the LS/ALS643,
HC/HCT643. The device inputs are compatible with standard CMOS
outputs; with pullup resistors, they are compatible with LS/ALS outputs.
The
KK
74AC643 is a 3-state transceiver that is used for 2-way
asynchronous communication between data buses. The device has an
active-low Output Enable pin, which is used to place the I/O ports into
high-impedance states. The Direction control determines whether data
flows from A to B or from B to A.
Outputs Directly Interface to CMOS, NMOS, and TTL
Operating Voltage Range: 2.0 to 6.0 V
Low Input Current: 1.0
μ
A; o.1
μ
A @ 25
°
C
High Noise Immunity Characteristic of CMOS Devices
Outputs Source/Sink 24 mA
PIN ASSIGNMENT
LOGIC DIAGRAM
PIN 20=V
CC
PIN 10 = GND
FUNCTION TABLE
Control Inputs
Output
Enable
Direction
Operation
L
L
Data Transmitted
from Bus B to
Bus A
L
H
Data Transmitted
from Bus A to
Bus B (inverted)
H
X
Buses Isolated
(High Impedance
State)
X = don’t care
1
相關PDF資料 |
PDF描述 |
|---|---|
| KK74AC643 | Octal 3-State Bus Transceiver High-Speed Silicon-Gate CMOS |
| KK74AC643DW | Octal 3-State Bus Transceiver High-Speed Silicon-Gate CMOS |
| KK74AC651 | Octal 3-State Bus Transceivers and D Flip-Flops High-Speed Silicon-Gate CMOS |
| KK74AC651DW | Octal 3-State Bus Transceivers and D Flip-Flops High-Speed Silicon-Gate CMOS |
| KK74AC651N | Octal 3-State Bus Transceivers and D Flip-Flops High-Speed Silicon-Gate CMOS |
相關代理商/技術參數 |
參數描述 |
|---|---|
| KK74AC651 | 制造商:KODENSHI 制造商全稱:KODENSHI KOREA CORP. 功能描述:Octal 3-State Bus Transceivers and D Flip-Flops High-Speed Silicon-Gate CMOS |
| KK74AC651DW | 制造商:KODENSHI 制造商全稱:KODENSHI KOREA CORP. 功能描述:Octal 3-State Bus Transceivers and D Flip-Flops High-Speed Silicon-Gate CMOS |
| KK74AC651N | 制造商:KODENSHI 制造商全稱:KODENSHI KOREA CORP. 功能描述:Octal 3-State Bus Transceivers and D Flip-Flops High-Speed Silicon-Gate CMOS |
| KK74AC652 | 制造商:KODENSHI 制造商全稱:KODENSHI KOREA CORP. 功能描述:Octal 3-State Bus Transceivers and D Flip-Flops High-Speed Silicon-Gate CMOS |
| KK74AC652DW | 制造商:KODENSHI 制造商全稱:KODENSHI KOREA CORP. 功能描述:Octal 3-State Bus Transceivers and D Flip-Flops High-Speed Silicon-Gate CMOS |
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