저전력 RS485/RS-422 트랜시버 모듈
(RS485 2 click)
개요
- 본 제품은 배터리로 동작하는 RS-485/RS-422 어플리케이션을 위한 Half-duplex MAX3471 트랜시버 모듈입니다.
- 3.3V, 5V로 동작하게 디자인이 되어 있으며, MCU와 UART를 통해 통신합니다.
- MAX3471은 1.6uA의 전류만을 소비합니다.
특징
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MAX3471 transceiver features
The MAX3471 draws only 1.6µA (typical) supply current from a 3.6V supply with the receiver enabled and the driver disabled. Its wide 2.5V to 5.5V supply voltage guarantees operation over the lifetime of a lithium battery.
This device contains one driver and one receiver. Its true fail-safe receiver input guarantees a logic-high receiver output when the receiver inputs are open or shorted, or when they are connected to a terminated transmission line with all drivers disabled.
The MAX3471 receiver operates at up to 64kbps and incorporates input filtering in addition to input hysteresis. This filtering enhances noise immunity when differential signals have very slow rise and fall times.
How the click works
There are two pairs of screw terminals on board the RS485 2 click. The ones marked with A and B are differential high and differential low communication lines. We added two more terminals for VCC and GND reference if needed for further interfacing.
Specifications
Type RS485 Applications Battery-Powered Differential Communications On-board modules MAX3471 half-duplex transceiver Key Features 1.6µA Supply Current with Receiver Enabled; intended for lithium battery-powered RS-485/RS-422 applications. Input Voltage 3.3V or 5V Click board size L (57.15 x 25.4 mm) Pinout diagram
This table shows how the pinout on RS485 2 click corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).
Jumpers and settings
Designator Name Default Position Default Option Description JP1 VCC SEL Left 3V3 Power Supply Voltage Selection 3V3/5V, left position 3V3, right position 5V
문서
연관제품
- 연관제품 1