V62/24605-01XE中文资料德州仪器数据手册PDF规格书

1 Features

• Wide operating range of 1.8 V to 5.5 V

• Single-supply voltage translator (refer to LVxT

Enhanced Input Voltage):

– Up translation:

• 1.2 V to 1.8 V

• 1.5 V to 2.5 V

• 1.8 V to 3.3 V

• 3.3 V to 5.0 V

– Down translation:

• 5.0 V, 3.3 V, 2.5 V to 1.8 V

• 5.0 V, 3.3 V to 2.5 V

• 5.0 V to 3.3 V

• 5.5-V tolerant input pins

• Supports standard pinouts

• Up to 150Mbps with 5-V or 3.3-V VCC

• Latch-up performance exceeds 250 mA

per JESD 17

• Supports defense, aerospace, and medical

applications:

– Controlled baseline

– One assembly and test site

– One fabrication site

– Extended product life cycle

– Product traceability

2 Applications

• Enable or disable a digital signal

• Controlling an indicator LED

• Translation between communication modules and

system controllers

3 Description

The SN74LV4T02-EP contains four independent 2-

input NOR Gates with extended voltage operation

to allow for level translation. Each gate performs

the Boolean function Y = A + B in positive logic.

The output level is referenced to the supply voltage

(VCC) and supports 1.2-V, 1.8-V, 2.5-V, 3.3-V, and 5-V

CMOS levels.

The input is designed with a lower threshold circuit to

support up translation for lower voltage CMOS inputs

(for example 1.2 V input to 1.8 V output or 1.8 V input

to 3.3 V output). Additionally, the 5-V tolerant input

pins enable down translation (for example 3.3 V to 2.5

V output).