产品概览
The TXU0202DCUR from Texas Instruments is a 2-bit dual-supply fixed-direction voltage-level translator in a VSSOP-8 (DCU) package. With opposite-direction channels (A1-to-B1 and B2-to-A2), Schmitt-trigger inputs, integrated pull-down resistors, and support for 1.1V to 5.5V rails at up to 200 Mbps, it is ideal for UART, SPI, and general-purpose I/O level shifting.
主要规格
| 渠道 | 2 (opposite direction) |
| 数据速率 | 200 Mbps (3.3V to 5V) |
| Voltage Range | 1.1V – 5.5V (both ports) |
| Direction | Fixed: A1->B1, B2->A2 |
| 输入类型 | Schmitt-trigger |
| 传播延迟 | 10 ns (typical) |
| Drive Strength | 12 mA @ 5V |
| 静态电流 | 2.5 uA max (25 deg C) |
| 包装 | VSSOP-8 (DCU) 2×3.1 mm |
| Temperature | -40至+125摄氏度 |
特点
- Opposite-direction channels ideal for UART TX/RX level shifting
- Schmitt-trigger inputs tolerate slow and noisy input signals
- Integrated static pull-down resistors prevent floating channels
- VCC isolation and VCC disconnect (Ioff-float) for power sequencing
- Pin-compatible with TXB family level shifters
应用
- UART level shifting between MCU and USB-to-serial chips
- SPI and JTAG interface voltage translation
- General-purpose I/O level shifting in multi-voltage systems
- Driving indicator LEDs and buzzers across voltage domains
- Mechanical switch debouncing with Schmitt-trigger inputs