MC74HCT245

更新时间： 2024-09-13 23:01:35

品牌	Logo	应用领域
安森美 - ONSEMI		总线收发器
页数	文件大小	规格书
8页	184K
描述
Octal 3-State Noninverting Bus Transceiver with LSTTL Compatible Inputs

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MC74HCT245 数据手册

High–Performance Silicon–Gate CMOS

The MC74HCT245A is identical in pinout to the LS245. This

device may be used as a level converter for interfacing TTL or NMOS

outputs to High Speed CMOS inputs.

http://onsemi.com

The MC74HCT245A 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.

• Output Drive Capability: 15 LSTTL Loads

• 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

MARKING

DIAGRAMS

PDIP–20

N SUFFIX

CASE 738

MC74HCT245AN

AWLYYWW

SOIC WIDE–20

DW SUFFIX

CASE 751D

HCT245A

AWLYYWW

• In Compliance with the Requirements Defined by JEDEC Standard

No. 7A

HCT

245A

ALYW

TSSOP–20

DT SUFFIX

CASE 948G

• Chip Complexity: 304 FETs or 76 Equivalent Gates

LOGIC DIAGRAM

= Assembly Location

WL = Wafer Lot

YY = Year

WW = Work Week

DATA

PORT

DATA

PORT

PIN ASSIGNMENT

DIRECTION

19 OUTPUT ENABLE

18 B1

DIRECTION

PIN 20 = V

PIN 10 = GND

17 B2

OUTPUT ENABLE

16 B3

Design Criteria

Internal Gate Count*

Value Units

15 B4

1.0

14 B5

Internal Gate Propagation Delay

Internal Gate Power Dissipation

Speed Power Product

13 B6

12 B7

5.0

µW

GND 10

11 B8

0.005

*Equivalent to a two–input NAND gate.

FUNCTION TABLE

ORDERING INFORMATION

Control Inputs

Output

Device

Package

PDIP–20

Shipping

Enable

Direction

Operation

MC74HCT245AN

1440 / Box

38 / Rail

Data Transmitted from Bus B to Bus A

Data Transmitted from Bus A to Bus B

Buses Isolated (High–Impedance State)

MC74HCT245ADW

SOIC–WIDE

MC74HCT245ADWR2 SOIC–WIDE 1000 / Reel

MC74HCT245ADT

TSSOP–20

75 / Rail

X = Don’t Care

MC74HCT245ADTR2

TSSOP–20 2500 / Reel

Semiconductor Components Industries, LLC, 2000

Publication Order Number:

March, 2000 – Rev. 8

MC74HCT245A/D

12 3 4 5 6 7 8

中文翻译

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与MC74HCT245相关器件

型号	品牌	获取价格	描述	数据表
MC74HCT245A	ONSEMI	获取价格	Octal 3-State Noninverting Bus Transceiver with LSTTL Compatible Inputs
MC74HCT245A_07	ONSEMI	获取价格	Octal 3−State Noninverting Bus Transceiver with LSTTL Compatible Inputs
MC74HCT245ADT	MOTOROLA	获取价格	Octal 3-State Noninverting Bus Transceiver with LSTTL Compatible Inputs
MC74HCT245ADT	ONSEMI	获取价格	Octal 3-State Noninverting Bus Transceiver with LSTTL Compatible Inputs
MC74HCT245ADT	ROCHESTER	获取价格	HCT SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO20, LEAD FREE, TSSOP-20
MC74HCT245ADTG	ONSEMI	获取价格	Octal 3−State Noninverting Bus Transceiver with LSTTL Compatible Inputs
MC74HCT245ADTR2	ONSEMI	获取价格	Octal 3-State Noninverting Bus Transceiver with LSTTL Compatible Inputs
MC74HCT245ADTR2	MOTOROLA	获取价格	Bus Transceiver, HCT Series, 1-Func, 8-Bit, True Output, CMOS, PDSO20, PLASTIC, TSSOP-20
MC74HCT245ADTR2G	ONSEMI	获取价格	Octal 3−State Noninverting Bus Transceiver with LSTTL Compatible Inputs
MC74HCT245ADW	ONSEMI	获取价格	Octal 3-State Noninverting Bus Transceiver with LSTTL Compatible Inputs

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