SN74LV8T165中文資料德州儀器數(shù)據(jù)手冊(cè)PDF規(guī)格書

1 Features

? Wide operating range of 1.8 V to 5.5 V

? Single-supply voltage translator

(refer to Section 7.3.1):

– 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

? Latching logic with known power-up state

? Latch-up performance exceeds 250 mA

per JESD 17

2 Applications

? Increase the number of inputs on a microcontroller

3 Description

The SN74LV8T165 device is a parallel- or serial-in,

serial-out 8-bit shift register. This device has two

modes of operation: load data, and shift data which

are controlled by the SH/LD input. The output level is

referenced to the supply voltage (VCC) and supports

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). In addition, the 5-V tolerant input pins

enable down translation (for example 3.3 V to 2.5 V

output).