Datasheet > MM74HCT244WM

MM74HCT244WM

更新时间： 2024-09-14 11:11:47

品牌	Logo	应用领域
安森美 - ONSEMI		/
页数	文件大小	规格书
9页	296K
描述
八通道3态缓冲器

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中文翻译

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数据手册
替代型号

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MM74HCT244WM 数据手册

DATA SHEET

www.onsemi.com

Inverting Octal 3-STATE

Buffer, Octal 3-STATE Buffer

MM74HCT240,

MM74HCT244

SOIC−20 WB

CASE 751D−05

TSSOP−20 WB

CASE 948E

TSSOP−20

CASE 948AQ

General Description

MARKING DIAGRAMS

The MM74HCT240 and MM74HCT244 3−STATE buffers utilize

advanced silicon−gate CMOS technology and are general purpose

high speed inverting and non−inverting buffers. They possess high

drive current outputs which enable high speed operation even when

driving large bus capacitances. These circuits achieve speeds

comparable to low power Schottky devices, while retaining the low

power consumption of CMOS. All three devices are TTL input

compatible and have a fanout of 15 LS−TTL equivalent inputs.

MM74HCT devices are intended to interface between TTL and

NMOS components and standard CMOS devices. These parts are also

plug−in replacements for LS−TTL devices and can be used to reduce

power consumption in existing designs.

XXX

XXXXXX

AWLYYWWG

XXX

ALYWG

XXXXX = Specific Device Code

= Assembly Location

= Wafer Lot

= Year

= Work Week

= Pb−Free Package

L/WL

Y/YY

W/WW

G or G

The MM74HCT240 is an inverting buffer and the MM74HCT244 is

a non−inverting buffer. Each device has two active low enables (1G

and 2G), and each enable independently controls 4 buffers.

All inputs are protected from damage due to static discharge by

(Note: Microdot may be in either location)

CONNECTION DIAGRAMS

Pin Assignment for SOIC and TSSOP

diodes to V and ground.

Features

• TTL Input Compatible

• Typical Propagation Delay: 14 ns

• 3−STATE Outputs for Connection to System Buses

• Low Quiescent Supply Current: 160 mA

• High Output Drive Current: 6 mA (min)

• These are Pb−Free Devices

TRUTH TABLES

MM74HCT240

MM74HCT240 (Top View)

MM74HCT244

MM74HCT244 (Top View)

ORDERING INFORMATION

See detailed ordering, marking and shipping information in the

package dimensions section on page 5 of this data sheet.

NOTES: H = HIGH Level

L = LOW Level

Z = High Impedance

Publication Order Number:

November, 2022 − Rev. 2

MM74HCT244/D

12 3 4 5 6 7...9

中文翻译

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MM74HCT244WM 替代型号

型号	品牌	替代类型	描述	数据表
MM74HCT244WMX	ONSEMI	完全替代	八通道3态缓冲器
MM74HCT244WMX	FAIRCHILD	类似代替	暂无描述
MM74HCT244WM	FAIRCHILD	类似代替	Inverting Octal 3-STATE Buffer Octal 3-STATE Buffer

与MM74HCT244WM相关器件

型号	品牌	获取价格	描述	数据表
MM74HCT244WM/A+	TI	获取价格	IC,BUFFER/DRIVER,DUAL,4-BIT,HCT-CMOS,SOP,20PIN,PLASTIC
MM74HCT244WMX	FAIRCHILD	获取价格	暂无描述
MM74HCT244WMX	TI	获取价格	HCT SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDSO20, PLASTIC, SO-20
MM74HCT244WMX	ONSEMI	获取价格	八通道3态缓冲器
MM74HCT244WMX_NL	FAIRCHILD	获取价格	Bus Driver, HCT Series, 2-Func, 4-Bit, True Output, CMOS, PDSO20, 0.300 INCH, MS-013, SOIC
MM74HCT245	FAIRCHILD	获取价格	Octal 3-STATE Transceiver
MM74HCT245J	NSC	获取价格	IC HCT SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, CDIP20, CERDIP-20, Bus Driver/Transceiver
MM74HCT245J/A+	NSC	获取价格	IC,BUS TRANSCEIVER,SINGLE,8-BIT,HCT-CMOS,DIP,20PIN,CERAMIC
MM74HCT245MTC	FAIRCHILD	获取价格	Octal 3-STATE Transceiver
MM74HCT245MTC	ROCHESTER	获取价格	HCT SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO20, 4.40 MM, MO-153AC, TSSOP-20

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