74LVC257A

Quad 2-input multiplexer with 5 V tolerant inputs/outputs;

3-state

Rev. 8 — 31 August 2021

Product data sheet

1. General description

The 74LVC257A is a quad 2-input multiplexer; 3-state. Inputs can be driven from either 3.3 V or

5 V devices. This feature allows the use of these devices as translators in mixed 3.3 V and 5 V

environments.

Schmitt-trigger action at all inputs makes the circuit tolerant of slower input rise and fall times.

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

• Overvoltage tolerant inputs to 5.5 V

• Wide supply voltage range from 1.2 V to 3.6 V

• CMOS low-power consumption

• Direct interface with TTL levels

• Output drive capability 50 Ω transmission lines at 85 °C

• IOFF circuitry provides partial Power-down mode operation

• Complies with JEDEC standard:

• JESD8-7A (1.65 V to 1.95 V)

• JESD8-5A (2.3 V to 2.7 V)

• JESD8-C/JESD36 (2.7 V to 3.6 V)

• ESD protection:

• HBM JESD22-A114F exceeds 2000 V

• MM JESD22-A115B exceeds 200 V

• CDM JESD22-C101E exceeds 1000 V

• Specified from -40 °C to +85 °C and -40 °C to +125 °C

3. Ordering information

Table 1. Ordering information

Package

Type number

Temperature range Name

Description

Version

74LVC257AD

-40 °C to +125 °C

SO16

plastic small outline package; 16 leads;

body width 3.9 mm

SOT109-1

74LVC257APW -40 °C to +125 °C

TSSOP16

plastic thin shrink small outline package; 16 leads;

body width 4.4 mm

SOT403-1

74LVC257ABQ -40 °C to +125 °C

DHVQFN16 plastic dual in-line compatible thermal enhanced

very thin quad flat package; no leads; 16 terminals;

body 2.5 × 3.5 × 0.85 mm

SOT763-1