Datasheet > TC74HC240AF(EL,F)

TC74HC240AF(EL,F)

更新时间： 2024-11-03 06:37:31

品牌	Logo	应用领域
东芝 - TOSHIBA		/
页数	文件大小	规格书
8页	239K
描述
TC74HC240AF(EL,F)

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TC74HC240,244AP/AF,241AP/AF

TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic

TC74HC240AP,TC74HC240AF,TC74HC241AP

TC74HC241AF,TC74HC244AP,TC74HC244AF

Octal Bus Buffer

TC74HC240AP/AF

TC74HC241AP/AF

TC74HC244AP/AF

Inverted, 3-State

Outputs

TC74HC240AP, TC74HC241AP,

TC74HC244AP

Non-Inverted,

3-State Outputs

Non-Inverted,

3-State Outputs

The TC74HC240A, 241A and 244A are high speed CMOS

OCTAL BUS BUFFERs fabricated with silicon gate C2MOS

technology.

They achieve the high speed operation similar to equivalent

LSTTL while maintaining the CMOS low power dissipation.

The 74HC240A is an inverting 3-state buffer having two

active-low output enables. The TC74HC241A and TC74HC244A

are non-inverting 3-state buffers that differ only in that the 241A

has one active-high and one active-low output enable, and the

244A has two active-low output enables.

TC74HC240AF, TC74HC241AF, TC74HC244AF

These devices are designed to be used with 3-state memory

address drivers, etc.

All inputs are equipped with protection circuits against static

discharge or transient excess voltage.

Weight

DIP20-P-300-2.54A

SOP20-P-300-1.27A

: 1.30 g (typ.)

: 0.22 g (typ.)

Features

•

High speed: t = 10 ns (typ.) at V

= 5 V

Low power dissipation: I

= 4 μA (max) at Ta = 25°C

High noise immunity: V

= V

= 28% V

(min)

NIH

NIL

Output drive capability: 15 LSTTL loads

Symmetrical output impedance: |I | = I

= 6 mA (min)

∼

−

Balanced propagation delays: t

pHL

pLH

Wide operating voltage range: V

(opr) = 2~6 V

Pin and function compatible with 74LS240/241/244

2007-10-01

12 3 4 5 6 7 8

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