74ALVC244

Octal buffer/line driver; 3-state

Rev. 5 — 30 April 2021

Product data sheet

1. General description

The 74ALVC244 is an 8-bit buffer/line driver with 3-state outputs. The device can be used as

two 4-bit buffers or one 8-bit buffer. The device features two output enables (1OE and 2OE),

each controlling four of the 3-state outputs. A HIGH on nOE causes the outputs to assume a

high-impedance OFF-state.

This device is fully specified for partial power down applications using IOFF. The IOFF circuitry

disables the output, preventing the potentially damaging backflow current through the device when

it is powered down.

2. Features and benefits

• Wide supply voltage range from 1.65 V to 3.6 V

• 3.6 V tolerant inputs/outputs

• CMOS low power consumption

• Direct interface with TTL levels (2.7 V to 3.6 V)

• Power-down mode

• Latch-up performance exceeds 250 mA

• Complies with JEDEC standards:

• JESD8-7 (1.65 V to 1.95 V)

• JESD8-5 (2.3 V to 2.7 V)

• JESD8B (2.7 V to 3.6 V)

• ESD protection:

• HBM JESD22-A114E exceeds 2000 V

• MM JESD22-A115-A exceeds 200 V

• Multiple package options

• Specified from -40 °C to +85 °C

3. Ordering information

Table 1. Ordering information

Package

Type number

Temperature range Name

Description

Version

74ALVC244D

-40 °C to +85 °C

SO20

plastic small outline package; 20 leads;

body width 7.5 mm

SOT163-1

74ALVC244PW -40 °C to +85 °C

TSSOP20

plastic thin shrink small outline package; 20 leads;

body width 4.4 mm

SOT360-1

74ALVC244BQ -40 °C to +85 °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