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| 型号： | C8051F912DK |
| 厂商： | Silicon Laboratories Inc |
| 文件页数： | 14/25页 |
| 文件大小： | 0K |
| 描述： | KIT DEV FOR C8051F91X/C8051F90X |
| 产品培训模块： | C8051F9xx Lower Power MCUs |
| 视频文件： | Designing for Low Power Operation |
| 特色产品： | C8051F91x/0x MCU Series Development Kit |
| 标准包装： | 1 |
| 类型： | MCU |
| 适用于相关产品： | C8051F91x/0x |
| 所含物品： | 板，电池，线缆，CD，电源适配器，USB 调试适配器 |
| 产品目录页面： | 626 (CN2011-ZH PDF) |
| 其它名称： | 336-1854 |
C8051F91x/90x
in Figure 11 through Figure 13 for additional information.
5.3. System Clock Sources
5.3.1. Internal Oscillators
The C8051F912 device installed on the target board features a factory calibrated programmable high-frequency
internal oscillator (24.5 MHz base frequency, ±2%) and a low power internal oscillator (20 MHz ±10%). After each
reset, the low power oscillator divided by 8 results in a default system clock frequency of 2.5 MHz (±10%). The
selected system clock and the system clock divider may be configured by software for operation at other
frequencies. For low-frequency operation, the C8051F912 features a smaRTClock real time clock. A 32.768 kHz
Watch crystal (Y2) is included on the target board. If you wish to operate the C8051F912 device at a frequency not
available with the internal oscillators, an external crystal may be used. Refer to the C8051F91x-C8051F90x data
sheet for more information on configuring the system clock source.
5.3.2. External Oscillator Options
The target board is designed to facilitate the installation of an external crystal (Y1). Install a 10 M ? resistor at R9
and install capacitors at C20 and C21 using values appropriate for the crystal you select. If you wish to operate the
external oscillator in capacitor or RC mode, options to install a capacitor or an RC network are also available on the
target board. Populate C21 for capacitor mode, and populate R16 and C21 for RC mode. Refer to the C8051F91x-
C8051F90x data sheet for more information on the use of external oscillators.
5.4. Port I/O Headers (J2, J3, J6)
Access to all Port I/O on the C8051F912 is provided through the headers J2 and J3. The header J6 provides
access to the ground plane for easy clipping of oscilloscope probes.
14
Rev. 0.2
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| C8051T610DB24 | DAUGHTER BOARD T610 24QFN SOCKET |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| C8051F912-GDI | 功能描述:8位微控制器 -MCU 16kB Flash MCU RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| C8051F912-GM | 功能描述:8位微控制器 -MCU 16KB 12ADC 24QFN RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| C8051F912-GMR | 功能描述:8位微控制器 -MCU 16KB 12ADC RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| C8051F912-GU | 功能描述:8位微控制器 -MCU 16KB 12ADC 24QSOP RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| C8051F912-GUR | 功能描述:8位微控制器 -MCU 16KB 12ADC RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
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