Microchip PIC12LF1840T48A 433.92 MHz系统参考设计方案

Microchip 公司的PIC12LF1840T48A是具有超低功耗的(XLP)的集成了小于1GHz RF发送器的8位PIC微控制器(MCU).器件提供不418/434/868 MHz RF发送器和KEELOQ® 技术,1.8-3.6V工作,14引脚TSSOP封装,非常适合用在空间,功耗和成本受限的应用如汽车,车库和安全系统的遥控无钥匙进入以及家庭和建筑物自动化系统.本文介绍了PIC12LF1840T48A主要特性, 应用框图以及采用CTRL线和PRESET模式的433.92 MHz发送器参考设计电路图.

The PIC12LF1840T48A’s combination of features in a single, 14-pin TSSOP package makes it ideal for space-, power- and cost-constrained applications, such as remote keyless entry fobs for automobiles, garage doors and home security systems, as well as a broad range of other home and building automation systems.

In addition to being optimized for secure wireless communication, the PIC12LF1840T48A is designed to maximize battery life via an extremely low operating voltage of 1.8V. Furthermore, the XLP microcontroller has extremely low sleep current consumption, and is efficiently integrated with the transmitter to enable fast wake-up and send functionality that takes full advantage of the MCU’s 8 MIPS operation.

PIC12LF1840T48A主要特性:

High-Performance RISC CPU:

• Only 49 Instructions to Learn:

- All single-cycle instructions except branches

• Operating Speed:
..

查看全文