A Complete Guide to TXS0102DCUR Voltage Level Translator
12 January 2024
Ⅱ. Symbol, footprint and pin configuration of TXS0102DCUR
Ⅲ. What are the features of TXS0102DCUR?
Ⅴ. Specifications of TXS0102DCUR
Ⅵ. Price and inventory of TXS0102DCUR
Ⅶ. What are the applications of TXS0102DCUR?
Ⅷ. What are the common faults of TXS0102DCUR?
If you need a tool to transition between voltage levels in microprocessor-driven circuits, consider Texas Instruments' TXS0102DCUR level converter. In this article, by introducing the pins, price, working principle and specifications of TXS0102DCUR, we can better understand the characteristics and advantages of this device, which provides a reference for subsequent circuit design and use.
The TXS0102DCUR is a non-directional voltage level translator manufactured by Texas Instruments specifically designed to convert logic voltage levels. It uses two independent configurable power rails, where the A port supports a 1.65V to 3.6V operating voltage range while tracking the VCCA supply, while the B port supports a 2.3V to 5.5V operating voltage range while tracking the VCCB supply. As a result, the device can support lower and higher logic signal levels while being able to convert bidirectionally between 1.8V, 2.5V, 3.3V and 5V voltage nodes.
It is a pass-gate architecture with edge-rate accelerators designed to increase overall data rates. This device typically uses a 10-kΩ pull-up resistor for open-drain applications, eliminating the need for external resistors. Although the unit is designed for open-air drainage, it can also convert push-pull CMOS logic outputs. The device is shipped in tape and reel packaging for quick installation and safe delivery.
Replacements and equivalents:
• UM3202V
Next, let’s take a look at the symbol, footprint and pin configuration of TXS0102DCUR.
Among them, TXS0102DCUR has a total of eight pins, and their names and pin functions are as follows:
Pin 1 (B2): Input/output B. Referenced to VCCB.
Pin 2 (GND): Ground
Pin 3 (VCCA): A-port supply voltage. 1.65V≤VCCA≤3.6V and VCCA≤VCCB
Pin 4 (A2): Input/output A. Referenced to VCCA.
Pin 5 (A1): Input/output A. Referenced to VCCA.
Pin 6 (OE): Output enable (active high). Pull OE low to place all outputs in 3-state mode. Referenced to VCCA.
Pin 7 (VCCB): B-port supply voltage. 2.3V≤VCCB≤5.5V
Pin 8 (B1): Input/output B. Referenced to VCCB.
TXS0102DCUR usually has the following characteristics:
• The TXS0102DCUR is a smart sensor that does not require a direction control signal and is capable of automatically detecting the direction of the signal.
• It utilizes a surface mount device for easy integration and layout on a circuit board.
• It includes overvoltage protection circuitry to protect the device from unexpected high voltages.
• The Loff supports partial power-down mode operation, which prevents damaging return currents when the device is powered down.
• It supports high data rates for applications with high bandwidth requirements.
• It has built-in electrostatic discharge (ESD) protection to improve device stability and reliability.
• The TXS0102DCUR is an integrated circuit designed for high efficiency and low loss signaling. It effectively minimizes the transmission loss when transferring signals between different levels.
TXS0102DCUR is a bi-directional voltage level converter, and its working principle mainly includes voltage level conversion and bi-directional control.
First of all, voltage level conversion is one of the basic functions of TXS0102DCUR. It can convert the input voltage level from one voltage range to another. Specifically, the TXS0102DCUR has two independent power supply pins, VCCA and VCCB, which can receive different supply voltages respectively. Through the internal circuit design, the converter can convert the input voltage level from VCCA or VCCB to the target voltage level, thus realizing the signal transmission and control of different voltage ranges.
Secondly, the TXS0102DCUR features bi-directional control. This means that it can transmit signals from Port A to Port B or from Port B to Port A as required. This bidirectional control is realized by switching the internal circuitry. Specifically, when it is necessary to transmit a signal from port A to port B, the TXS0102DCUR's internal circuitry transmits the input signal from port A to output port B, completing the conversion of voltage levels; and vice versa.
In addition, the TXS0102DCUR has an output enable (OE) control function. When the OE input is low, the TXS0102DCUR turns off the output signals by setting all I/O ports to a high impedance state. This helps reduce quiescent current consumption and provides effective control when signal outputs need to be disabled.
• It has 3 channels.
• Its supply current is 14.4 µA.
• Its propagation delay time is 260ns.
• Its data rate is 24 Mbps.
• TXS0102DCUR is manufactured by Texas Instruments.
• It adopts SMD or SMT installation method.
• Its operating temperature is -40°C to 85°C.
• It has 8 pins and comes in VSSOP package and Tape and Reel packaging.
The data shown in the figure below comes from XCC.COM. This chart shows in detail the price and inventory changes of TXS0102DCUR from May 2023 to December 2023.
1. Price of TXS0102DCUR
The price of TXS0102DCUR showed an overall downward trend in volatility from May to December 2023. Its average price remained at 2.66 yuan. This stable performance shows that the average price of TXS0102DCUR is largely affected by market supply and demand. Among them, its highest price appeared in July, reaching 4.01 yuan, while its lowest price appeared in September, falling to 1.49 yuan.
2. Inventory of TXS0102DCUR
We can see from the picture that the inventory of TXS0102DCUR does not change much and remains within a relatively stable range. Specifically, in July, its inventory reached its highest point, at 253,157 pieces; in November, its inventory dropped to its lowest point, at 175,725 pieces. As the price drops, the inventory of TXS0102DCUR shows a downward trend. This suggests that its inventory is affected by price.
TXS0102DCUR is usually used in the following fields:
• I²C/SMBus
• Communications and Networking
• General Purpose Input/Output (GPIO)
• Universal Asynchronous Receiver Transmitter (UART)
When using TXS0102DCUR, we may encounter the following problems:
The first is pin resistors or capacitors. Improper selection of the value of external resistors or capacitors may result in signal distortion or delay. Therefore, according to the specifications of TXS0102DCUR, we select appropriate external resistors or capacitors to ensure that they do not affect the signal quality.
The second is the temperature issue. Extreme temperature conditions may impact its performance. Ensure that this converter functions correctly within the designated operating temperature range if the operating environment experiences extreme temperatures.
The third is level mismatch. If the input and output levels do not match, it may lead to communication errors. Therefore, we need to make sure that the input and output levels match the specifications of the TXS0102DCUR. Depending on the application, we may need to adjust the input or output levels.
The fourth issue is power supply. If the TXS0102DCUR does not have an adequate power supply, it may result in improper operation. We need to make sure that the correct power supply voltage and current are supplied to this converter. Also, we need to check the power supply lines to make sure there are no shorts or breaks.
The fifth is incorrect pin connection. Incorrect pin connections may result in signals not being passed correctly, thus affecting the function of the entire circuit. We need to double-check the pin connections of TXS0102DCUR to make sure that they are connected to the correct pins and to avoid connection errors.
The sixth is the overload protection trigger. Excessive current or voltage may trigger the overload protection of TXS0102DCUR. We need to check the current and voltage of the system to make sure they are within the specification of TXS0102DCUR. At the same time, we need to consider whether we need to reduce the load or replace the level shifter with a more suitable one.
Frequently Asked Questions
1. What is the operating temperature range of TXS0102DCUR?
The operating temperature of TXS0102DCUR ranges from -40°C to 85°C.
2. What is the replacement and equivalent of TXS0102DCUR?
You can replace the TXS0102DCUR with TXS0102DCUT, TXS0102DCURG4, TXS0102DCUTG4, TXS0102DQER or UM3202V.
3. Can the TXS0102DCUR be used bidirectionally?
Yes, the TXS0102DCUR is bidirectional, meaning it can translate signals in both directions, allowing communication between devices with different voltage levels.
4. How many channels does the TXS0102DCUR have?
The TXS0102DCUR has two channels, allowing it to translate signals for two separate lines or communication paths.
