TXB0108DQSR QFN‑20 8‑Bit Bidirectional Voltage Level Translator IC Chip, High‑Speed Logic Signal Converter for Embedded & MCU Interface Conversion

TXB0108DQSR 8‑Bit Bidirectional Voltage‑Level Translator

📌 Product Overview

The TXB0108DQSR is an 8‑bit bidirectional voltage‑level translator with auto‑direction sensing and ±15‑kV ESD protection, packaged in USON‑20 small surface‑mount form. It realizes seamless voltage conversion between two different logic voltage domains without extra direction‑control pins. The device supports high‑speed signal transmission up to 100 Mbps, adopts low‑power operation design, and delivers stable and reliable conversion performance. Marked with “5MR” on the chip surface, it is supplied in tape‑and‑reel packaging for automated SMT assembly. This level shifter is widely used for level shifting, interface expansion and signal conversion of GPIO, SPI, UART, I2S, JTAG and other digital interfaces in embedded electronics.

✨ Core Features

1. 8‑channel bidirectional automatic voltage translation, no direction‑control signal required
2. High‑speed data transmission up to 100 Mbps
3. Wide operating voltage range: 1.2 V to 3.6 V on port A, 1.65 V to 5.5 V on port B
4. Built‑in ±15 kV ESD protection for robust anti‑interference capability
5. Low power consumption, suitable for battery‑powered portable equipment
6. Compact USON‑20 surface‑mount package, ideal for miniaturized PCB layout
7. Tape‑and‑reel packing for mass production SMT welding

📐 Dimension Info

• Chip size: 3.0 X 4.5 X 0.75 mm

🛠️ Application Scenarios

• Microcontroller GPIO level matching
• SPI / UART / I2S / JTAG digital interface conversion
• Consumer electronic products
• Industrial control modules
• Embedded DIY development projects