产品概览
The NVT2008PW,118 from NXP is an 8-bit bidirectional voltage-level translator for I2C/SMBus and other open-drain interfaces. It translates between 1.0V-3.6V (A side) and 2.3V-5.5V (B side) domains, enabling communication between low-voltage and higher-voltage ICs.
主要规格
| 功能 | 8-bit I2C/SMBus voltage-level translator |
| 渠道 | 8 bidirectional |
| Voltage Range A | 1.0V to 3.6V |
| Voltage Range B | 2.3V to 5.5V |
| 数据速率 | Up to 2 Mbps (push-pull) |
| 包装 | TSSOP-20 (6.5×4.4mm) |
工作原理
Each channel uses a pass-gate MOSFET structure that automatically senses direction based on external drive. Two independent supply rails (VCCA and VCCB) define the voltage domains. When A side is driven low, the pass gate conducts and pulls B side low, and vice versa. Open-drain/pull-up operation is inherent.
应用
- I2C level translation (1.8V to 3.3V)
- Multi-voltage GPIO interface
- SMBus communication
- Processor-to-peripheral bridging