Texas TXS0102DCURG4--2-Bit Bidirectional Voltage-Level Translator

Description

Manufactured by Texas, this two-bit non-inverting translator is a bidirectional voltage-level translator and can be used to establish digital switching compatibility between mixed-voltage systems. It uses two separate configurable power supply rails, with the A ports supporting operating voltages from 1.65 V to 3.6 V while it tracks the VCCA supply, and the B ports supporting operating voltages from 2.3 V to 5.5 V while it tracks the VCCB supply. This allows the support of both lower and higher logic signal levels while providing bidirectional translation capabilities between any of the 1.8-V, 2.5-V, 3.3-V, and 5-V voltage nodes.

When the output-enable (OE) input is low, all I/Os are placed in the high-impedance state, which significantly reduces the power-supply quiescent current consumption.

To ensure the high-impedance state during power up or power down, OE should be tied to GND through a pulldown resistor; the minimum value of the resistor is determined by the current-sourcing capability of the driver.

 

Detailed Description

The TXS0102 device is a directionless voltage-level translator specifically designed for translating logic voltage levels. The A port is able to accept I/O voltages ranging from 1.65 V to 3.6 V, while the B port can accept I/O voltages from 2.3 V to 5.5 V. The device is a pass-gate architecture with edge-rate accelerators (one-shots) to improve the overall data rate. 10-kΩ pullup resistors, commonly used in open-drain applications, have been conveniently integrated so that an external resistor is not needed. While this device is designed for open-drain applications, the device can also translate push-pull CMOS logic outputs.

 

Functional Block Diagram

Features

No Direction-Control Signal Needed

• Maximum Data Rates

– 24 Mbps (Push Pull)

– 2 Mbps (Open Drain)

• Available in the Texas Instruments NanoStar™ Package

• 1.65 V to 3.6 V on A Port and 2.3 V to 5.5 V on B Port (VCCA ≤ VCCB)

• VCC Isolation Feature: If Either VCC Input Is at GND, Both Ports Are in the High-Impedance State

• No Power-Supply Sequencing Required: Either VCCA or VCCB Can Be Ramped First

• Ioff Supports Partial-Power-Down Mode Operation

• Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II

• ESD Protection Exceeds JESD 22

– A Port:

– 2500-V Human-Body Model (A114-B)

– 250-V Machine Model (A115-A)

– 1500-V Charged-Device Model (C101)

– B Port:

– 8-kV Human-Body Model (A114-B)

– 250-V Machine Model (A115-A)

– 1500-V Charged-Device Model (C101)

 

Applications

• I²C/ SMBus

• UART

• GPIO

 

Typical Application Block Diagram for TXS0102

Application Information

The TXS0102 device can be used to bridge the digital-switching compatibility gap between two voltage nodes to successfully interface logic threshold levels found in electronic systems. It should be used in a point-to-point topology for interfacing devices or systems operating at different interface voltages with one another. Its primary target application use is for interfacing with open-drain drivers on the data I/Os such as I²C or 1-wire, where the data is bidirectional and no control signal is available. The device can also be used in applications where a pushpull driver is connected to the data I/Os, but the TXB0102 might be a better option for such push-pull applications.

 

Typical Application Circuit

 

Product Parameter

Manufacturer	Texas	Manufacturer's Part #	TXS0102DCURG4
Categories	Integrated Circuits (ICs)	Sub-Categories	Logic - Translators, Level Shifters
Part Status	Active	Translator Type	Voltage Level
Channel Type	Bidirectional	Number of Circuits	1
Voltage - VCCA	1.65V~3.6V	Voltage - VCCB	2.3V~5.5V
Output Type	Open Drain, Push-Pull	Data Rate	24Mbps
Operating Temperature	-40°C~85°C TA	Mounting Type	Surface Mount
Package / Case	8-VFSOP (0.091, 2.30mm Width)	Factory Lead Time	6 Weeks
Lifecycle Status	ACTIVE (Last Updated: 2 days ago)	Mount	Surface Mount
Number of Pins	8	Weight	9.610488mg
Packaging	Tape & Reel (TR)	Pbfree Code	yes
Number of Terminations	8	Subcategory	Other Interface ICs
Terminal Position	DUAL	Terminal Form	GULL WING
Peak Reflow Temperature (Cel)	260	Number of Functions	1
Supply Voltage	1.8V	Terminal Pitch	0.5mm
Base Part Number	TXS0102	Pin Count	8
Number of Channels	2	Max Supply Voltage	5.5V
Min Supply Voltage	1.65V	Number of Bits	2
Propagation Delay	260 ns	Quiescent Current	14.4μA
Turn On Delay Time	260 ns	Logic Function	Translator
Output Characteristics	3-STATE	High Level Output Current	-20μA
Low Level Output Current	1mA	Height	900μm
Length	2.3mm	Width	2mm
Thickness	850μm	Radiation Hardening	No
Lead Free	Lead Free	Terminal Finish	Nickel/Palladium/Gold (Ni/Pd/Au)
Interface IC Type	INTERFACE CIRCUIT	Feature	Auto-Direction Sensing
Supply Voltage1-Nom	2.5V

 

Manufacturer

Texas Instruments is a semiconductor multinational company in Texas, USA. It is famous for developing, manufacturing, and selling semiconductor and computer technology. It is mainly engaged in innovative digital signal processing and analog circuits. In addition to the semiconductor business, it also provides solutions including sensing and control, educational products and digital light source processing. Texas Instruments (TI) is headquartered in Dallas, Texas, USA, and has manufacturing, design or sales organizations in more than 25 countries.