Overview
The TXU0104BQAR is a 4-bit, dual-supply noninverting fixed direction voltage-level translator produced by Texas Instruments. This device is part of the TXU0104 family and is designed to facilitate voltage-level translation between two different voltage domains. The TXU0104BQAR operates with a fully configurable dual-rail design, allowing each port to function within a voltage range of 1.1 V to 5.5 V. It is particularly useful in applications requiring high-speed data transmission and robust signal integrity.
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 (A Port, B Port, OE) | -0.5 | - | 6.5 | V |
| Operating Free-Air Temperature | -40 | - | 125 | °C |
| High-Level Output Voltage (IOH = -0.1 mA) | VCCO - 0.1 | - | - | V |
| Low-Level Output Voltage (IOL = 0.1 mA) | 0.1 | - | - | V |
| Input Clamp Current (VI < 0) | -20 | - | - | mA |
| Junction-to-Ambient Thermal Resistance (RθJA) | 87.2 | - | - | °C/W |
Key Features
- Fully configurable dual-rail design allowing each port to operate from 1.1 V to 5.5 V.
- Up to 200 Mbps support for 3.3 V to 5.0 V data transmission.
- Schmitt-trigger inputs to handle 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 – 2.5 µA maximum at 25°C and 6 µA maximum from –40°C to 125°C.
- VCC isolation and VCC disconnect (Ioff-float) feature to disable outputs when either VCC input is below 100 mV or disconnected.
- Ioff supports 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.
- Available in various packages: VQFN (14-pin), TSSOP (14-pin), UQFN (12-pin), and X2SON (12-pin).
- Operating temperature range from –40°C to +125°C.
- ESD protection exceeding JESD 22 – 2500-V human-body model and 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?
VCCA and VCCB can operate within a voltage range of 1.1 V to 5.5 V.
- What is the maximum data transmission speed supported by the TXU0104?
The device supports up to 200 Mbps for 3.3 V to 5.0 V data transmission.
- What type of inputs does the TXU0104 have?
The device features Schmitt-trigger inputs to handle slow and noisy signals.
- How does the TXU0104 handle floating channels?
The inputs are equipped with integrated static pull-down resistors to prevent channels from floating.
- What is the power consumption of the TXU0104?
The device has a low power consumption of 2.5 µA maximum at 25°C and 6 µA maximum from –40°C to 125°C.
- What happens to the outputs when either VCC input is below 100 mV or disconnected?
The outputs are disabled and become high-impedance when either VCC input is below 100 mV or disconnected.
- What is the operating temperature range of the TXU0104?
The device operates from –40°C to +125°C.
- What kind of ESD protection does the TXU0104 offer?
The device provides ESD protection exceeding JESD 22 – 2500-V human-body model and 1500-V charged-device model.
- In what packages is the TXU0104 available?
The device is available in VQFN (14-pin), TSSOP (14-pin), UQFN (12-pin), and X2SON (12-pin) packages.
- Is the TXU0104 compatible with other level shifters?
The TXU0104 is pinout compatible with the TXB family level shifters.
