TXS0108E High-Speed Full Duplex 8-Channel Logic Level Converter

Product Description

The TXS0108E Logic Level Converter is an essential tool for modern electronics prototyping where mixed-voltage systems are common. The module is split into two sides: Port A (low voltage) and Port B (high voltage). It utilizes an edge-rate accelerator circuit to maintain signal integrity at high frequencies, ensuring that square waves remain sharp even at $110Mbps$. The "Full Duplex" capability allows data to flow in both directions simultaneously across all eight channels. The module also includes an Output Enable (OE) pin, which can be pulled LOW to place all I/O pins in a high-impedance state, effectively isolating the two circuits during power-up or sleep modes.

Key Features

• Auto-Direction Sensing: Simplifies software and PCB routing by eliminating the need for a direction-control signal.

• 8-Bit Versatility: Shift an entire data bus (e.g., 8-bit parallel) or multiple serial lines (SPI + UART + I2C) using a single chip.

• Wide Voltage Range: Supports everything from legacy 5V systems down to ultra-low 1.2V mobile processors.

• Push-Pull & Open-Drain Support: Compatible with both standard CMOS outputs and I2C-style pull-up architectures.

• Breadboard Friendly: Comes as a compact module with $2.54mm$ pitch headers for easy integration.

Technical Details

• VCCA Constraint: $VCCA$ must always be less than or equal to $VCCB$ ($VCCA \leq VCCB$).

• OE Pin Logic: The OE pin is referenced to $VCCA$. It should be tied to $VCCA$ for normal operation.

• No Pull-up Needed: For most push-pull applications, the internal circuitry handles the transitions without external resistors.