Overview
The TXU0204BQAR is a 4-bit, dual-supply noninverting fixed direction voltage-level translator produced by Texas Instruments. This device is designed to facilitate voltage translation between two different voltage domains, making it highly versatile for various electronic systems. It features a fully configurable dual-rail design, allowing each port to operate from 1.1 V to 5.5 V, and supports data rates up to 200 Mbps for certain voltage combinations. The TXU0204BQAR is available in several package options, including VQFN, TSSOP, UQFN, and X2SON, catering to different design and space requirements.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCCA Supply Voltage | -0.5 | 6.5 | V | |
| VCCB Supply Voltage | -0.5 | 6.5 | V | |
| Input Voltage (I/O Ports) | -0.5 | 6.5 | V | |
| Operating Free-Air Temperature | -40 | 125 | °C | |
| Maximum Data Rate (Up Translation) | 200 | Mbps | ||
| Input Clamp Current (VI < 0) | -20 | mA | ||
| Output Clamp Current (VO < 0) | -20 | mA | ||
| Power Consumption (25°C) | 2.5 | µA | ||
| Power Consumption (-40°C to 125°C) | 6 | µA |
Key Features
- Fully configurable dual-rail design allowing each port to operate from 1.1 V to 5.5 V.
- Up to 200 Mbps data rate support for certain voltage combinations.
- Schmitt-trigger inputs for handling slow and noisy inputs.
- Inputs with integrated static pull-down resistors to prevent floating channels.
- High drive strength (up to 12 mA at 5 V).
- Low power consumption with a maximum of 2.5 µA at 25°C and 6 µA over the full temperature range.
- VCC isolation and VCC disconnect (Ioff-float) feature to disable outputs when either VCC input is below 100 mV or disconnected.
- Support for partial-power-down mode operation.
- Control logic (OE) with VCC(MIN) circuitry allowing control from either A or B port.
- Pinout compatible with TXB family level shifters.
- ESD protection exceeding JESD 22 standards (2500-V human-body model, 1500-V charged-device model).
Applications
- Eliminating slow or noisy input signals.
- Driving indicator LEDs or buzzers.
- Debouncing mechanical switches.
- General-purpose I/O level shifting.
- Push-pull level shifting for protocols like UART, SPI, JTAG, etc.
Q & A
- What is the voltage range for the supply voltages VCCA and VCCB of the TXU0204BQAR? The supply voltages VCCA and VCCB can range from 1.1 V to 5.5 V.
- What is the maximum data rate supported by the TXU0204BQAR? The device supports up to 200 Mbps data rate for certain voltage combinations.
- What type of inputs does the TXU0204BQAR have? The device features Schmitt-trigger inputs to handle slow and noisy signals.
- How does the TXU0204BQAR prevent floating channels? The device has inputs with integrated static pull-down resistors to prevent channels from floating.
- What is the power consumption of the TXU0204BQAR at 25°C? The maximum power consumption at 25°C is 2.5 µA.
- Does the TXU0204BQAR support partial-power-down mode operation? Yes, it supports partial-power-down mode operation.
- What is the ESD protection level of the TXU0204BQAR? The device has ESD protection exceeding JESD 22 standards (2500-V human-body model, 1500-V charged-device model).
- What are the available package options for the TXU0204BQAR? The device is available in VQFN, TSSOP, UQFN, and X2SON packages.
- Can the TXU0204BQAR be used for GPIO translation? Yes, it is commonly used for GPIO translation among other applications.
- How does the VCC isolation feature work in the TXU0204BQAR? If either VCC input is below 100 mV or disconnected, all outputs are disabled and become high-impedance.
