74LS240

更新时间： 2024-11-17 22:53:15

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		驱动器
页数	文件大小	规格书
7页	75K
描述
Octal 3-STATE Buffer/Line Driver/Line Receiver

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中文翻译

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数据手册

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74LS240 数据手册

August 1986

Revised March 2000

DM74LS240 • DM74LS241

Octal 3-STATE Buffer/Line Driver/Line Receiver

General Description

Features

These buffers/line drivers are designed to improve both the

performance and PC board density of 3-STATE buffers/

drivers employed as memory-address drivers, clock driv-

ers, and bus-oriented transmitters/receivers. Featuring

400 mV of hysteresis at each low current PNP data line

input, they provide improved noise rejection and high

fanout outputs and can be used to drive terminated lines

down to 133Ω.

■ 3-STATE outputs drive bus lines directly

■ PNP inputs reduce DC loading on bus lines

■ Hysteresis at data inputs improves noise margins

■ Typical I_OL(sink current)

24 mA

■ Typical I_OH(source current)

−15 mA

■ Typical propagation delay times

Inverting

10.5 ns

12 ns

Noninverting

■ Typical enable/disable time 18 ns

■ Typical power dissipation (enabled)

Inverting

130 mW

135 mW

Noninverting

Ordering Code:

Order Number Package Number

Package Description

DM74LS240WM

DM74LS240SJ

DM74LS240N

DM74LS241WM

DM74LS241N

M20B

M20D

N20A

M20B

N20A

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

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

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

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

Connection Diagrams

DM74LS240

DM74LS241

DS006411

www.fairchildsemi.com

12 3 4 5 6 7

中文翻译

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与74LS240相关器件

型号	品牌	获取价格	描述	数据表
74LS240DC	ETC	获取价格	Dual 4-Bit Inverting Buffer/Driver
74LS240DCQM	FAIRCHILD	获取价格	Bus Driver, 2-Func, 4-Bit, Inverted Output, TTL, CDIP20,
74LS240DCQR	FAIRCHILD	获取价格	Bus Driver, 2-Func, 4-Bit, Inverted Output, TTL, CDIP20,
74LS240FC	FAIRCHILD	获取价格	Bus Driver, 2-Func, 4-Bit, Inverted Output, TTL, CDFP20,
74LS240FCQM	FAIRCHILD	获取价格	Bus Driver, 2-Func, 4-Bit, Inverted Output, TTL, CDFP20,
74LS240FCQR	ROCHESTER	获取价格	Bus Driver,
74LS240N	NXP	获取价格	IC LS SERIES, DUAL 4-BIT DRIVER, INVERTED OUTPUT, PDIP20, PLASTIC, DIP-20, Bus Driver/Tran
74LS240PC	ETC	获取价格	Dual 4-Bit Inverting Buffer/Driver
74LS240PCQM	ROCHESTER	获取价格	Bus Driver,
74LS240PCQR	ROCHESTER	获取价格	Bus Driver,