1.

General description

The 74HC240; 74HCT240 is a high-speed Si-gate CMOS device and is pin compatible

with Low-Power Schottky TTL (LSTTL).

The 74HC240; 74HCT240 is a dual octal inverting buffer/line driver with 3-state outputs.

The 3-state outputs are controlled by the output enable inputs 1OE and 2OE. A HIGH on

nOE causes the outputs to assume a high impedance OFF-state.

The 74HC240; 74HCT240 is similar to the 74HC244; 74HCT244 but has inverting

outputs.

2.

Features

s Inverting 3-state outputs

s Multiple package options

s Complies with JEDEC standard no. 7 A

s ESD protection:

x HBM JESD22-A114-D exceeds 2000 V

x MM JESD22-A115-A exceeds 200 V

s Specified from

−40 °Cto+85 °C and from −40 °C to +125 °C

3.

Ordering information

74HC240; 74HCT240

Octal buffer/line driver; 3-state; inverting

Rev. 03 — 2 August 2007

Product data sheet

Table 1.

Ordering information

Type number

Package

Temperature range

Name

Description

Version

74HC240

74HC240N

−40 °C to +125 °C

DIP20

plastic dual in-line package; 20 leads (300 mil)

SOT146-1

74HC240D

−40 °C to +125 °C

SO20

plastic small outline package; 20 leads;

body width 7.5 mm

SOT163-1

74HC240DB

−40 °C to +125 °C

SSOP20

plastic shrink small outline package; 20 leads;

body width 5.3 mm

SOT339-1

74HC240PW

−40 °C to +125 °C

TSSOP20

plastic thin shrink small outline package; 20 leads;

body width 4.4 mm

SOT360-1

74HC240BQ

−40 °C to +125 °C

DHVQFN20

plastic dual-in-line compatible thermal enhanced

very thin quad flat package; no leads; 20 terminals;

body 2.5

× 4.5 × 0.85 mm

SOT764-1

74HCT240

74HCT240N

−40 °C to +125 °C

DIP20

plastic dual in-line package; 20 leads (300 mil)

SOT146-1