Silabs C8051F990超低功耗滑块解决方案

Silabs 公司的C8051F99x系列是超低功耗容性触摸传感的全集成混合信号系统级芯片（SoC）MCU，具有最低的功耗和最高的触摸灵敏度，广泛适用于容性按钮，滑块，容性接近检测等。C8051F99x系列采用8051兼容的微控制器核，性能高达25MIPS，具有在系统全速非破坏性的调试接口和带模拟复接器的10位300ksps或12位75ksps单端ADC，以及多达8kB的闪存和512B RAM，工作电压1.8到3.6 V，主要用在仪表盘，触摸屏，游戏系统，住宅区HVAC，家用电器，玩具，传真机/打印机/扫描仪面板和工业接口等。本文介绍了C8051F99x-C8051F98x主要亮点和特性，方框图和C8051F990滑块评估板主要特性与电路图。
C8051F99x-C8051F98x devices are fully integrated mixed-signal system-on-a-chip MCUs. Highlighted features are listed below.
C8051F99x-C8051F98x主要亮点：
Ultra low power consumption in active and sleep modes.
High-speed pipelined 8051-compatible microcontroller core (up to 25 MIPS)
In-system, full-speed, non-intrusive debug interface (on-chip)
10-bit 300 ksps or 12-bit 75 ksps single-ended ADC with analog multiplexer
6-bit programmable current reference (resolution can be increased with PWM)
Precision programmable 24.5 MHz internal oscillator with spread spectrum technology.
8 kB , 4 kB, or 2 kB of on-chip Flash memory
512 bytes of on-chip RAM
SMBus/I2C, Enhanced UART, and Enhanced SPI serial interfaces implemented in hardware
Four general-purpose 16-bit timers
Programmable counter/timer array (PCA) with three capture/compare modules and watchdog timer function
On-chip power-on reset, VDD monitor, and temperature sensor
One on-chip voltage comparator
Up to 14 Capacitive Touch (QuickSense™) Inputs
Up to 17 Port I/O
With on-chip power-on reset, VDD monitor, watchdog timer, and clock oscillator, the C8051F99x-C8051F98x devices are truly stand-alone system-on-a-chip solutions. The Flash memory can be reprogrammed even in-circuit, providing non-volatile data storage, and also allowing field upgrades of the 8051 firmware. User software has complete control of all peripherals, and ...