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| Silicon Lab C8051F9xx低压MCU方案 | |||||
作者：Silicon 文章来源：Silicon 点击数： 更新时间：2008-3-25  |
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The C8051F9xx product family is the industry’s first MCU family capable of operating down to 0.9 V and up to 3.6 V, enabling single-cell battery operation as well as dramatically increasing battery life for dual-cell applications. With an integrated dc-dc converter, the C8051F9xx has been designed to provide a fast wake-up time, low active-mode, and ultra-low sleep mode current consumptions. The C8051F9xx family not only provides high performance while saving power but also unprecedented functional density in a small footprint. The C8051F9xx is the first line of MCUs to integrate 64 kB of Flash and 4 kB of RAM into a 4 x 4 mm package while also integrating a 10-bit, 300-ksps analog-to-digital converter (ADC) with an internal fast wake-up voltage reference, a smaRTClock timing module, and multiple internal oscillator options to provide a true system-on-chip solution. Lowest Voltage Operation With an integrated dc-dc converter, the C8051F9xx family is the industry’s first MCU capable of operating down to 0.9 V, enabling single-cell battery operation and dramatically increasing battery life for dual-cell applications, ultimately shrinking the form factor and cost of battery-powered products. Greatest Power Efficiency The C8051F9xx family is optimized in all operating modes to enable customers to either move to a single-cell design or increase the system’s battery life by up to 2x in parallel dual-cell designs. Highest Functional Density With 64 kB of Flash and 4 kB of RAM in a 4 x 4 mm package, the C8051F9xx provides customers with increased memory for data-intensive applications. The small form factor makes these devices ideal for applications where end-product size is critical. Maximize Battery Life The C8051F9xx family is optimized to maximize power efficiency by enabling an ultra-low current sleep mode, a fast wake-up time, a fast settling time to support analog measurements, and a low active current mode, resulting in maximum battery life.  C8051F9xx 主要特性： Single cell/dual-cell operation One-cell mode supports 0.9 to 1.8 V operation Dual-cell mode supports 1.8 to 3.6 V operation Integrated high-efficiency dc-dc boost converter Integrated low drop out (LDO) voltage regulator Multiple internal oscillators smaRTClock oscillator Low power 20 MHz oscillator Precision 24.5 MHz oscillator with spread spectrum mode Ultra-low current sleep mode and fast wake 25 MHz, single-cycle 8051 compatible CPU with low active-mode current Unprecedented functional density 64 kB Flash memory 4 kB of RAM 4 x 4 mm package Burst mode 10-bit ADC with internal fast start-up VREF Capacitive touch sense support Two on-chip voltage comparators Up to 23 capacitive touch sense inputs 主要应用： Portable personal medical products Remote controls Portable audio Consumer electronics Wireless sensors and security Wireless meter reading Industrial monitoring and control  图1. C8051F9xx方框图 The C8051F930 Development Kit is intended as a development platform for the microcontrollers in the C8051F93x-C8051F92x MCU family. The members of this MCU family are C8051F930, C8051F931, C8051F920, and C8051F921. 开发套件所包含内容： The C8051F930 Development Kit contains the following items: C8051F930 Target Board C8051Fxxx Development Kit Quick-Start Guide Silicon Laboratories IDE and Product Information CD-ROM. CD content includes the following: Silicon Laboratories Integrated Development Environment (IDE) Keil 8051 Development Tools (macro assembler, linker, evaluation C compiler) Source code examples and register definition files Documentation C8051F930 Development Kit User’s Guide (this document) AC to DC Power Adapter USB Debug Adapter (USB to Debug Interface) 2 USB Cables 2 AAA Batteries  图2. C8051F930 目标板外形图  图3. C8051F9xx开发板电路图（1）  图4. C8051F9xx开发板电路图（2）  图5. C8051F9xx开发板电路图（3） |
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