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IN74HCT245AN 参数 Datasheet PDF下载

IN74HCT245AN图片预览
型号: IN74HCT245AN
PDF下载: 下载PDF文件 查看货源
内容描述: 八路三态同相总线收发器的高性能硅栅CMOS [Octal 3-State Noninverting Bus Transceiver High-Performance Silicon-Gate CMOS]
分类和应用: 总线收发器
文件页数/大小: 7 页 / 202 K
品牌: IKSEMICON [ IK SEMICON CO., LTD ]
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TECHNICAL DATA
IN74HCT245A
Octal 3-State Noninverting
Bus Transceiver
High-Performance Silicon-Gate CMOS
The IN74HCT245A is identical in pinout to the LS/ALS245.This
device may be used as a level converter for interfacing TTL or NMOS
outputs to High Speed CMOS inputs.
The IN74HCT245A is a 3-state noninverting 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.
TTL/NMOS Compatible Input Levels
Outputs Directly Interface to CMOS, NMOS, and TTL
Operating Voltage Range: 4.5 to 5.5 V
Low Input Current: 1.0
μA
ORDERING INFORMATION
IN74HCT245AN Plastic
IN74HCT245ADW SOIC
IN74HCT245ATDS SOIC
T
A
= -55° to 125° C for all packages
PIN ASSIGNMENT
LOGIC DIAGRAM
FUNCTION TABLE
PIN 20=V
CC
PIN 10 = GND
Control Inputs
Output
Enable
L
Direction
L
Operation
Data Transmitted
from Bus B to
Bus A
Data Transmitted
from Bus A to
Bus B
Buses Isolated
(High Impedance
State)
L
H
H
X
X = don’t care
Rev. 00