Overview
The TXS0102DCTT is a 2-bit bidirectional voltage-level translator produced by Texas Instruments. This component is designed to establish digital switching compatibility between mixed-voltage systems, making it an essential tool for integrating different voltage logic levels within a single system. It supports bidirectional translation between various voltage nodes such as 1.8 V, 2.5 V, 3.3 V, and 5 V, ensuring seamless communication between different parts of a circuit.
Key Specifications
| Parameter | Value |
|---|---|
| Package | SSOP (DCT) with 8 pins |
| Operating Temperature Range | -40°C to 85°C |
| Voltage Range on A Port | 1.65 V to 3.6 V |
| Voltage Range on B Port | 2.3 V to 5.5 V |
| Maximum Data Rates | 24 Mbps (push-pull), 2 Mbps (open-drain) |
| ESD Protection | A Port: 2500-V Human-Body Model, B Port: 8-kV Human-Body Model |
| Latch-up Performance | Exceeds 100 mA per JESD 78, Class II |
Key Features
- No direction-control signal needed.
- Supports both push-pull and open-drain applications.
- 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.
- Output-enable (OE) input places all I/Os in the high-impedance state when low.
Applications
The TXS0102DCTT is versatile and can be used in a variety of applications where mixed-voltage systems are present. Some common use cases include:
- Interface between different voltage domains in a system.
- Level translation in microcontroller, FPGA, or ASIC interfaces.
- Communication between different logic levels in embedded systems.
- Power management and sequencing in complex digital circuits.
Q & A
- What is the primary function of the TXS0102DCTT?
The primary function of the TXS0102DCTT is to act as a bidirectional voltage-level translator, enabling communication between mixed-voltage systems.
- What are the supported voltage ranges for the A and B ports?
The A port supports operating voltages from 1.65 V to 3.6 V, while the B port supports operating voltages from 2.3 V to 5.5 V.
- What are the maximum data rates for push-pull and open-drain configurations?
The maximum data rates are 24 Mbps for push-pull and 2 Mbps for open-drain configurations.
- Does the TXS0102DCTT require a direction-control signal?
No, the TXS0102DCTT does not require a direction-control signal.
- How does the VCC isolation feature work?
If either VCC input is at GND, both ports are placed in the High-Impedance state.
- What is the significance of the Ioff feature?
The Ioff feature supports partial-power-down mode operation, allowing for reduced power consumption when not in use.
- How does the output-enable (OE) input affect the I/Os?
When the OE input is low, all I/Os are placed in the high-impedance state, reducing power consumption.
- What kind of ESD protection does the TXS0102DCTT offer?
The TXS0102DCTT offers ESD protection exceeding JESD 22 standards, with 2500-V Human-Body Model for the A port and 8-kV Human-Body Model for the B port.
- What is the operating temperature range of the TXS0102DCTT?
The operating temperature range is -40°C to 85°C.
- What package type and pin count does the TXS0102DCTT come in?
The TXS0102DCTT comes in an SSOP (DCT) package with 8 pins.
