TC74HC240AF TOSHIBA Semiconductor CORPORATION, TC74HC240AF Datasheet

TC74HC240AF

Manufacturer Part Number

TC74HC240AF

Description

Manufacturer

TOSHIBA Semiconductor CORPORATION

Datasheet

1.TC74HC240AF.pdf (8 pages)

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Octal Bus Buffer

OCTAL BUS BUFFERs fabricated with silicon gate C2MOS

technology.

LSTTL while maintaining the CMOS low power dissipation.

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.

address drivers, etc.

discharge or transient excess voltage.

Features

•

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

They achieve the high speed operation similar to equivalent

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

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

All inputs are equipped with protection circuits against static

High speed: t

Low power dissipation: I

High noise immunity: V

Output drive capability: 15 LSTTL loads

Symmetrical output impedance: |I

Balanced propagation delays: t

Wide operating voltage range: V

Pin and function compatible with 74LS240/241/244

TC74HC240AP/AF

TC74HC241AP/AF

TC74HC244AP/AF

TC74HC240AP,TC74HC240AF,TC74HC241AP

TC74HC241AF,TC74HC244AP,TC74HC244AF

= 10 ns (typ.) at V

TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic

NIH

= 4 μA (max) at Ta = 25°C

= V

pLH

NIL

∼ − t

(opr) = 2~6 V

Inverted, 3-State

Outputs

Non-Inverted,

3-State Outputs

Non-Inverted,

3-State Outputs

= 28% V

= 5 V

| = I

pHL

= 6 mA (min)

(min)

TC74HC240,244AP/AF,241AP/AF

Weight

DIP20-P-300-2.54A

SOP20-P-300-1.27A

TC74HC240AP, TC74HC241AP,

TC74HC244AP

TC74HC240AF, TC74HC241AF, TC74HC244AF

: 1.30 g (typ.)

: 0.22 g (typ.)

2007-10-01

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TC74HC240AF Summary of contents

Page 1

... TC74HC240,244AP/AF,241AP/AF Inverted, 3-State Outputs Non-Inverted, 3-State Outputs Non-Inverted, 3-State Outputs = 28% V (min) NIL (min ∼ − t pLH pHL (opr TC74HC240AP, TC74HC241AP, TC74HC244AP TC74HC240AF, TC74HC241AF, TC74HC244AF Weight DIP20-P-300-2.54A : 1.30 g (typ.) SOP20-P-300-1.27A : 0.22 g (typ.) 2007-10-01 ...

Page 2

Pin Assignment TC74HC240A IEC Logic Symbol TC74HC240A Truth Table Inputs Outputs Δ Δ: For TC74HC241A only ΔΔ: ...

Page 3

Absolute Maximum Ratings (Note 1) Characteristics Supply voltage range DC input voltage DC output voltage Input diode current Output diode current DC output current DC V /ground current CC Power dissipation Storage temperature Note 1: Exceeding any of the absolute ...

Page 4

Electrical Characteristics DC Characteristics Characteristics Symbol High-level input V IH voltage Low-level input V IL voltage High-level output V OH voltage Low-level output V OL voltage 3-state output I OZ off-state current Input leakage I IN current Quiescent supply I ...

Page 5

AC Characteristics (input Characteristics Symbol t TLH Output transition time t THL t pLH Propagation delay time t pHL t pZL Output enable time R t pZH t pLZ Output disable time R t pHZ Input capacitance C ...

Page 6

Package Dimensions Weight: 1.30 g (typ.) TC74HC240,244AP/AF,241AP/AF 6 2007-10-01 ...

Page 7

Package Dimensions Weight: 0.22 g (typ.) TC74HC240,244AP/AF,241AP/AF 7 2007-10-01 ...

Page 8

RESTRICTIONS ON PRODUCT USE • The information contained herein is subject to change without notice. • TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor devices in general can malfunction or fail due to ...

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