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TXS0108ERGYR

8-bit auto-direction level translator, 1.4-3.6V to 1.65-5.5V, 110Mbps, 20-VQFN

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Manufacturer Part：

TXS0108ERGYR

Package：

20-VQFN / RGY (4.5 x 3.5 x 1.0mm)

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Description

Product Overview

The TXS0108ERGYR from Texas Instruments is an 8-bit bidirectional voltage-level translator for open-drain and push-pull applications in a 20-VQFN (4.5 x 3.5mm) package. It supports auto-direction sensing with no direction-control signal needed, translating between 1.4V-3.6V (A port) and 1.65V-5.5V (B port) logic levels at data rates up to 110Mbps push-pull and 1.2Mbps open-drain.

Key Specifications

Number of Bits 8
Data Rate (Push-Pull) 110Mbps
Data Rate (Open-Drain) 1.2Mbps
VCCA Range 1.4V to 3.6V
VCCB Range 1.65V to 5.5V
Direction Control Auto-direction (no control signal)
Propagation Delay 4.8ns typ.
Supply Current 8μA max
Package 20-VQFN (4.5 x 3.5 x 1.0mm)
Operating Temperature -40°C to +125°C

Features

  • No direction-control signal needed
  • 110Mbps push-pull data rate
  • 1.2Mbps open-drain data rate
  • Auto-direction sensing
  • 1.4V to 3.6V on A port, 1.65V to 5.5V on B port
  • No power-supply sequencing required
  • Edge-rate accelerators for fast edges
  • Output enable (OE) with Hi-Z state
  • IEC 61000-4-2 ESD: ±8kV contact on B port

Applications

  • I2C, SPI, UART level shifting
  • SDIO and GPIO voltage translation
  • Smartphone and tablet interfaces
  • Desktop PC motherboard level shifting
  • JTAG and MDIO interface translation

The TXS0108ERGYR from Texas Instruments is an 8-bit bidirectional voltage-level translator that uses two separate configurable power-supply rails. The A port tracks VCCA (1.4V-3.6V) and the B port tracks VCCB (1.65V-5.5V), enabling bidirectional translation between common logic levels (1.8V, 2.5V, 3.3V, 5V) without direction-control signals. With data rates up to 110Mbps in push-pull mode and 1.2Mbps in open-drain mode, it supports I2C, SPI, UART, GPIO, and SDIO interfaces in a compact 20-VQFN package.

The TXS0108E uses pass-transistor-based translation with integrated edge-rate accelerators and auto-direction sensing. Each channel consists of a pair of nMOS pass transistors that connect the A and B ports through a common node. The edge-rate accelerators (one-shot circuits) briefly turn on the pass transistors strongly during transitions to speed up edge rates, then reduce drive to prevent bus contention. For open-drain applications, internal pull-up resistors on both ports maintain the high state. The OE input disables all outputs by placing them in Hi-Z state when driven low.

Pin Name Type Function
1 OE Input Output enable (active high)
2 VCCA Power A port supply (1.4-3.6V)
3-6 A1-A4 I/O A port data channels 1-4
7 GND Power Ground
8-11 A5-A8 I/O A port data channels 5-8
12 VCCB Power B port supply (1.65-5.5V)
13-16 B5-B8 I/O B port data channels 5-8
17 GND Power Ground
18-20 B1-B3 I/O B port data channels 1-3
  • I2C bus level translation between 1.8V MCU and 3.3V peripherals
  • SPI interface voltage conversion in mixed-voltage systems
  • SDIO level shifting for SD card interfaces
  • JTAG debug port voltage adaptation
  • GPIO bank level translation in smartphones and tablets
Manufacturer Part Number Package Notes
TI TXS0108EPWR TSSOP-20 Same function, TSSOP package
TI TXS0108EZXYR UFBGA-20 Same function, BGA package
NXP 74LVC8T245 TSSOP-24 8-bit direction-controlled translator
Renesas ISL3035EIRZ QFN-20 8-bit auto-direction translator
onsemi NLSV4T3234DTR2G TSSOP-24 4-bit dual-supply translator
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We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Shipping & Payment

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Service & Packaging

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

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