Product Overview
The TP2434-TR from Microchip is a 3.3V RS-485/RS-422 transceiver supporting data rates up to 20 Mbps with ±15 kV ESD protection on bus pins. It is designed for high-speed half-duplex communication in industrial and instrumentation applications.
Key Specifications
| Function | 3.3V RS-485/RS-422 transceiver |
| Data Rate | Up to 20 Mbps |
| Supply Voltage | 3.0V to 3.6V |
| Common-Mode Range | -7V to +12V |
| ESD Protection | ±15 kV HBM on bus pins |
| Package | SOIC-8 (3.9×4.9mm) |
Working Principle
Differential driver transmits data on A/B bus with controlled slew rate for EMI reduction. Receiver with ±200 mV sensitivity decodes differential signals. Hot-swap capability prevents bus glitches during power-up. Enable pins (DE/RE) control direction for half-duplex operation.
Applications
- Industrial automation (Modbus)
- Building automation (BACnet)
- Motor drive communication
- Instrumentation