2채널 UART 멀티플렉서 모듈 -74HC4066D
(UART MUX 4 CLICK)
개요
- 본 제품은 2채널 UART 멀티플렉서 모듈 -74HC4066D입니다.
- 74HC4066D 칩을 기반으로 디자인된 제품으로 하나의 UART를 두개의 UART로 멀티플렉싱하여 주는 제품입니다.
- 동시에 2개의 UART로 데이터를 전송하는 것은 아니며, 1개의 채널씩 순차적으로 출력합니다.
특징
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HOW DOES IT WORK?
UART MUX 4 Click is based on the 74HC4066D, a quad single-pole, single-throw analog switch from Nexperia. The CMOS level inputs of the 74HC4066D include clamp diodes, which in turn allow the use of current limiting resistors to interface inputs to voltages exceeding VCC. This Click board™ has two multiplexed 4-pin UART headers labeled UART1 and UART2. The UART header lines are labeled for corresponding pins. It offers fast switching speeds with a turn-OFF time of 13ns and 11ns for turn-ON if powered with 5V.
The UART MUX 2 Click uses a standard UART interface to communicate with the host MCU, with commonly used RX and TX lines. To switch between the two output UART interfaces, this Click board™ features a switch in the form of an NPN transistor circuit. This switch circuit allows using one of the outputs UART interfaces via the SW pin of the mikroBUS™ socket with a simple logic state.
This Click board™ can operate with either 3.3V or 5V logic voltage levels selected via the VCC SEL jumper. This way, both 3.3V and 5V capable MCUs can use the communication lines properly. However, the Click board™ comes equipped with a library containing easy-to-use functions and an example code that can be used, as a reference, for further development.
SPECIFICATIONS
Type Port expander,RS232 Applications Can be used for the development of a wide range of applications, from industrial and instrumentation to consumer, communications, data-acquisition systems, and many more On-board modules 74HC4066D - quad single-pole, single-throw analog switch from Nexperia Key Features Fast turn-ON and turn-OFF times, two output UART interfaces, 3.3V and 5V operation, clamp diodes included on inputs, CMOS level, ESD protection, and more Interface UART Compatibility mikroBUS Click board size S (28.6 x 25.4 mm) Input Voltage 3.3V or 5V