Datasheet > 74ALS244

74ALS244

更新时间： 2024-11-03 22:53:15

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		总线驱动器
页数	文件大小	规格书
6页	76K
描述
Octal 3-STATE Bus Driver

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数据手册

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74ALS244 数据手册

September 1986

Revised February 2000

DM74ALS244A

Octal 3-STATE Bus Driver

General Description

Features

This octal 3-STATE bus driver is designed to provide the

designer with flexibility in implementing a bus interface with

memory, microprocessor, or communication systems. This

device offers 64-extended temperature Grade product

guaranteeing performance from −40°C to +85°C. The out-

put 3-STATE gating control is organized into two separate

groups of four buffers, and both control inputs enable the

respective outputs when set logic LOW. The 3-STATE cir-

cuitry contains a feature that maintains the buffer outputs in

3-STATE (high impedance state) during power supply

ramp-up or ramp-down. This eliminates bus glitching prob-

lems that arise during power-up and power-down.

■ Advanced low power oxide-isolated ion-implanted

Schottky TTL process

■ Functional and pin compatible with the 74LS counterpart

■ Improved switching performance with less power dissi-

pation compared with the 74LS counterpart

■ Switching response specified into 500Ω and 50 pF load

■ Switching response specifications guaranteed over full

temperature and V_CCsupply range

■ PNP input design reduces input loading

Ordering Code:

Order Number

DM74ALS244AWM

DM74ALS244ASJ

DM74ALS244AMSA

DM74ALS244AN

Package Number

M20B

Package Description

20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide

20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide

20-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide

20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide

M20D

MSA20

N20A

Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.

Connection Diagram

Logic Diagram

Function Table

Input

Output

H = HIGH Level Logic State

L = LOW Level Logic State

X = Don't Care (Either LOW or HIGH Level Logic State)

Z = High Impedance (OFF) State

DS006212

www.fairchildsemi.com

12 3 4 5 6

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与74ALS244相关器件

型号	品牌	获取价格	描述	数据表
74ALS244A	NXP	获取价格	Octal buffer 3-State
74ALS244A-1	NXP	获取价格	Octal buffer 3-State
74ALS244A-1D	ETC	获取价格	Dual 4-Bit Non-Inverting Buffer/Driver
74ALS244A-1DB	NXP	获取价格	Octal buffer 3-State
74ALS244A-1DB-T	NXP	获取价格	暂无描述
74ALS244A-1D-T	NXP	获取价格	IC ALS SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDSO20, PLASTIC, SO-20, Bus Driver/Transcei
74ALS244A-1N	NXP	获取价格	Octal buffer 3-State
74ALS244AD	NXP	获取价格	Octal buffer 3-State
74ALS244ADB	NXP	获取价格	Octal buffer 3-State
74ALS244ADB-T	NXP	获取价格	IC ALS SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDSO20, PLASTIC, SSOP2-20, Bus Driver/Trans