SN74LV8T138-EP中文资料三线至八线解码器/多路信号分离器（增强型产品）数据手册TI规格书

描述 Description

The SN74LV8T138-EP is a three to eight decoder with one standard output strobe (G2) and two active low output strobes (G1 and G0). When the outputs are gated by any of the strobe inputs, they are all forced into the high state. When the outputs are not disabled by the strobe inputs, only the selected output is low while all others are high. The output level is referenced to the supply voltage (VCC) and supports 1.8V, 2.5V, 3.3V, and 5V CMOS levels.

The input is designed with a lower threshold circuit to support up translation for lower voltage CMOS inputs (for example, 1.2V input to 1.8V output or 1.8V input to 3.3V output). In addition, the 5V tolerant input pins enable down translation (for example, 3.3V to 2.5V output).

特性 Features

Wide operating range of 1.65V to 5.5V

5.5V tolerant input pins

Single-supply voltage translator (refer to LVxT Enhanced Input Voltage):

Up translation:

1.2V to 1.8V

1.5V to 2.5V

1.8V to 3.3V

3.3V to 5.0V



Down translation:

5.0V, 3.3V, 2.5V to 1.8V

5.0V, 3.3V to 2.5V

5.0V to 3.3V





Up to 150Mbps with 5V or 3.3V VCC

Supports standard function pinout

Latch-up performance exceeds 250mAper JESD 17

Supports defense and aerospace applications:

Controlled baseline

One assembly and test site

One fabrication site

Extended product life cycle

Product traceability