Specifications
| Attribute | Value |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Series | TCA |
| Part Status | Active |
| Translator Type | Voltage Level |
| Channel Type | Bidirectional |
| Number of Circuits | 1 |
| Channelsper Circuit | 2 |
| Voltage - VCCA | 1.65 V ~ 3.6 V |
| Voltage - VCCB | 2.3 V ~ 5.5 V |
| Output Type | Open Drain |
| Data Rate | 24Mbps |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Features | Auto-Direction Sensing |
| Mounting Type | Surface Mount |
Overview
Description
The TCA9406DCUR is a dual bidirectional I²C and SMBus voltage level translator from Texas Instruments. It facilitates communication between I²C buses operating at different voltage levels, enabling compatibility between devices with varying I/O voltages. The device supports up to 400 kHz operation, making it suitable for standard-mode and fast-mode I²C applications.
Key features include automatic direction sensing, which allows it to manage bidirectional data flow without requiring a direction control pin. The TCA9406DCUR also features a low ON-state resistance and minimal propagation delay, maintaining signal integrity and ensuring efficient data transfer.
The device comes in a small, space-saving 8-pin UQFN package, making it ideal for compact and power-sensitive applications. Its operating voltage ranges from 1.2 V to 3.6 V for the low-side and 1.65 V to 5.5 V for the high-side, offering flexibility in interfacing with various logic levels. The TCA9406DCUR is widely used in applications like portable electronics, consumer electronics, and computing systems where I²C bus level translation is required.
Key features include automatic direction sensing, which allows it to manage bidirectional data flow without requiring a direction control pin. The TCA9406DCUR also features a low ON-state resistance and minimal propagation delay, maintaining signal integrity and ensuring efficient data transfer.
The device comes in a small, space-saving 8-pin UQFN package, making it ideal for compact and power-sensitive applications. Its operating voltage ranges from 1.2 V to 3.6 V for the low-side and 1.65 V to 5.5 V for the high-side, offering flexibility in interfacing with various logic levels. The TCA9406DCUR is widely used in applications like portable electronics, consumer electronics, and computing systems where I²C bus level translation is required.
Equivalent
The TCA9406DCUR is a bidirectional voltage-level translator. Equivalent products include:
1. PCA9306 from NXP
2. TXS0108E from Texas Instruments
3. BSS138-based level shifters (for simple applications)
4. MAX3373E from Maxim Integrated
5. LSF0108 from Texas Instruments
Make sure to compare specifications and pin compatibility to ensure a suitable match for your application.
1. PCA9306 from NXP
2. TXS0108E from Texas Instruments
3. BSS138-based level shifters (for simple applications)
4. MAX3373E from Maxim Integrated
5. LSF0108 from Texas Instruments
Make sure to compare specifications and pin compatibility to ensure a suitable match for your application.
Features
The TCA9406DCUR is a bidirectional voltage-level translator designed for open-drain and push-pull applications. Here are its key features:
1. Voltage Translation Range: Facilitates translation between 1.2 V to 3.6 V on the A-side and 1.65 V to 5.5 V on the B-side, enabling interfacing between different voltage levels.
2. I2C and GPIO Compatibility: Suitable for I2C communication and general-purpose input/output (GPIO) applications, supporting both open-drain and push-pull configurations.
3. Automatic Direction Sensing: Detects the direction of the signal, eliminating the need for a directional control pin, simplifying design and reducing pin count.
4. Support for Standard and Fast I2C Speeds: Compatible with I2C bus speeds of up to 400 kHz for standard-mode and up to 1 MHz for fast-mode I2C.
5. Low Propagation Delay: Ensures minimal signal delay, maintaining data integrity.
6. Compact Package: Available in a small, space-saving package (DCU package), ideal for compact or densely populated circuit boards.
7. Low Power Consumption: Designed for minimal power draw, suitable for battery-operated devices.
These features make the TCA9406DCUR versatile and efficient for voltage level translation in various electronic applications.
1. Voltage Translation Range: Facilitates translation between 1.2 V to 3.6 V on the A-side and 1.65 V to 5.5 V on the B-side, enabling interfacing between different voltage levels.
2. I2C and GPIO Compatibility: Suitable for I2C communication and general-purpose input/output (GPIO) applications, supporting both open-drain and push-pull configurations.
3. Automatic Direction Sensing: Detects the direction of the signal, eliminating the need for a directional control pin, simplifying design and reducing pin count.
4. Support for Standard and Fast I2C Speeds: Compatible with I2C bus speeds of up to 400 kHz for standard-mode and up to 1 MHz for fast-mode I2C.
5. Low Propagation Delay: Ensures minimal signal delay, maintaining data integrity.
6. Compact Package: Available in a small, space-saving package (DCU package), ideal for compact or densely populated circuit boards.
7. Low Power Consumption: Designed for minimal power draw, suitable for battery-operated devices.
These features make the TCA9406DCUR versatile and efficient for voltage level translation in various electronic applications.
Pinout
The TCA9406DCUR is a bidirectional I2C voltage-level translator manufactured by Texas Instruments. It comes in an 8-pin VSSOP (DCU) package. The primary function of this device is to enable communication between devices operating at different voltage levels, particularly for I2C and SMBus interfaces. It can translate voltages between 1.2 V to 3.6 V on one side and 1.65 V to 5.5 V on the other side.
Here is a brief description of the pin functions:
1. VREF1: Reference voltage for the A-side (lower voltage side).
2. SDA1: Serial data line for the A-side.
3. SCL1: Serial clock line for the A-side.
4. EN: Enable pin to activate the translator.
5. SCL2: Serial clock line for the B-side.
6. SDA2: Serial data line for the B-side.
7. VREF2: Reference voltage for the B-side (higher voltage side).
8. GND: Ground connection.
The device is particularly useful in applications requiring level shifting for I2C buses, allowing for robust communication between components with different voltage requirements.
Here is a brief description of the pin functions:
1. VREF1: Reference voltage for the A-side (lower voltage side).
2. SDA1: Serial data line for the A-side.
3. SCL1: Serial clock line for the A-side.
4. EN: Enable pin to activate the translator.
5. SCL2: Serial clock line for the B-side.
6. SDA2: Serial data line for the B-side.
7. VREF2: Reference voltage for the B-side (higher voltage side).
8. GND: Ground connection.
The device is particularly useful in applications requiring level shifting for I2C buses, allowing for robust communication between components with different voltage requirements.
Manufacturer
The TCA9406DCUR is manufactured by Texas Instruments. Texas Instruments (TI) is a global semiconductor company that designs and produces a wide range of integrated circuits and electronic components. They serve various industries, including consumer electronics, automotive, industrial, communications, and enterprise systems. TI is known for its innovation and contributions to the development of analog and embedded processing technologies. The company focuses on creating products that improve performance and energy efficiency in electronic systems.
Application
The TCA9406DCUR is a dual bidirectional I2C voltage-level translator. Its primary application areas include facilitating communication between devices operating at different voltage levels, such as microcontrollers, sensors, and other peripherals in embedded systems. It is commonly used in systems where there is a need to interface low-voltage components (1.65 V to 3.6 V) with higher-voltage components (1.65 V to 5.5 V), making it suitable for mobile devices, industrial control systems, consumer electronics, and automotive applications. The device's ability to support open-drain and push-pull architectures also makes it versatile for various signal translation tasks in digital circuits.
Package
The TCA9406DCUR is a dual bidirectional I2C and SMBus voltage-level translator from Texas Instruments. It comes in a small-outline SOT-563 (also known as DCU) package, which is compact and suitable for space-constrained applications.
