SN65HVD230 Bus Transceiver Communication Module

SN65HVD230 Bus Transceiver Communication Module is a reliable and compact module designed for robust differential communication over twisted-pair wiring. Using the SN65HVD230 transceiver chip, it offers high-speed RS-485/RS-422 compatibility, making it ideal for industrial networking, serial communication interfaces, and embedded control systems.

Key Features:

• Standards-Compliant: Supports RS‑485 and RS‑422 differential communication standards.
• High-Speed Data Rate: Up to 10 Mbps transmission.
• Wide Voltage Range: Operates from 3.3 V to 5 V logic systems.
• Fail‑Safe Feature: Automatic receiver output defaults to logic high when inputs are open, shorted, or idle.
• Industrial Reliability: ESD protection and excellent noise immunity.

Technical Specifications:

• Supply Voltage (V_CC): 3.3 V to 5 V
• Data Rate:  Up to 10 Mbps
• Receiver Input Sensitivity: ±200 mV
• Driver Differential Output: ±2 V (min) into 54 Ω
• Propagation Delay: t_pd typically 120 ns
• Operating Temperature: –40 °C to +85 °C industrial grade

Mechanical Specifications:

• Board Type: FR‑4 PCB, single-layer
• Mounting: Compact through-hole design with optional header pins
• Component Protection: ESD diodes and robust PCB traces

Dimensions:

• Module Size: Approx. 25 mm × 18 mm × 6 mm (L × W × H)
• Pin Pitch: Standard 2.54 mm spacing

Pinout and Wiring:

• VCC: 3.3 – 5 V power input
• GND: Signal and power ground
• RO (Receive Output): Data output from bus to MCU
• RE\~ & DE\~: Receiver enable (active low) and driver enable (active low)
• DI (Drive Input): TTL/CMOS input for data from MCU to bus driver
• A / B: Differential RS‑485 bus lines (A = non-inverting, B = inverting)

Datasheet Reference:

• Search for: “SN65HVD230 datasheet and application notes” for detailed electrical and timing specs

Applications:

• Industrial Fieldbus: RS‑485 network communication in PLCs and remote sensors
• Embedded Systems: Microcontroller-based serial links over long cabling
• Automation & Control: Machine-to-machine communication in harsh electrical environments
• Data Logging: Reliable long-distance signal transfer for monitoring systems

Equivalent Models:

• MAX485 Module: Low-power RS‑485 transceiver with similar form factor
• ISO3082 Isolated RS‑485 Module: Offers galvanic isolation for high-noise environments
• ADM485 Module: Industrial-grade RS‑485 interface with robust line robustness
• VP230: SOP IC

Package Includes:

• 1 × SN65HVD230 Bus Transceiver Communication Module