Name: RS485 Click Board 3.3V RS422/485 Transceiver - MikroE
Brand: MikroElektronika
SKU: 188-MIKROE-989
Price: 1784.16 INR
Availability: InStock

Technical Specifications

Brand:

MikroElektronika

Type:

RS485

Applications:

Interfacing the MCU UART module with the RS422/RS485 communication bus. Controlling various building automation systems, light controllers, sensors, and small embedded devices that can share the same bus

On-board Modules:

SN75HVD12, an RS-422/485, half-duplex, tri-state differential line driver and differential input line receiver, from Texas Instruments

Key Features:

High communication speed up to 1Mbps, true failsafe protection, thermal shutdown, short circuit protection of the driver output, termination resistor selected with the jumper, bus biasing selected with jumpers

Interface:

UART

Compatibility:

mikroBUS

Size:

42.9 x 25.4 mm

Input Voltage:

3.3V

Warranty Information

All the products supplied by Evelta are genuine and original. We offer 14 days replacement warranty in case of manufacturing defects. For more details, please visit our cancellation and returns page.

Description

The MIKROE-989 RS485 Click Board integrates SN75HVD12, an RS-422/485, half-duplex, tristate differential line driver and differential input line receiver, from Texas Instruments. It features a half-duplex communication capability, bus Idle, opens and short-circuit detection, glitch free power-up and power-down for hot-plugging applications, thermal shutdown, and more. It is well suited for transmitting data packets over long distances and noisy areas, using the twisted wire bus, which offers good electromagnetic interferences (EMI) immunity. ESD protection of the transceiver IC ensures reliable operation, exceeding 16kV for human body model (HBM).

RS485 Click Board Description

This click is intended to be used as a physical layer device, often referred to as PHY, providing physical interfacing of the MCU TTL level UART lines with the RS422/485 bus. It is well suited for transmitting smaller blocks of data over long distances, using a twisted differential signal pair, for both TX and RX signals, allowing for half-duplex asynchronous communication. The SN75HVD12 transceiver consists of a separate driver and receiver sections, with Driver Enable and Receiver Enable pins (#RE and DE), used to enable the appropriate sections.