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參數(shù)資料
| 型號： | IN74LS245N |
| 廠商： | INTEGRAL JOINT STOCK COMPANY |
| 英文描述： | Octal Bus Transceivers And Registers With 3-State Outputs 24-SOIC -40 to 85 |
| 中文描述： | 八路三態(tài)同相總線收發(fā)器 |
| 文件頁數(shù)： | 1/5頁 |
| 文件大小： | 332K |
| 代理商： | IN74LS245N |
TECHNICAL DATA
IN74LS245
Octal 3-State Noninverting
Bus Transceiver
ORDERING INFORMATION
IN74LS245N Plastic
IN74LS245DW SOIC
T
A
= 0
°
to 70
°
C for all packages
These octal bus transceiver are designed for asynchronous two-way
communication between data buses. The control function implementation
minimized external timing requirements.
The device allows data transmission from the A bus to the B bus or
from the B bus to the A bus depending upon the logic level at the
directional control (DIR) input. The enable input(E) can be used to
disable the device so that the buses are effectively isolated.
Bidirectional Bus Transceiver in a High-Density 20-Pin Package
3-state Outputs Dirve Bus Lines Directly
P-N-P Inputs D-C Loading on Bus Lines
Hysteresis at Bus Inputs Improve Noise Margins
Typical Propagation Delay Times; Port to Port ... 8 ns
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
H
X
Buses Isolated
(High Impedance
State)
X = don’t care
1
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