william_t的专栏

SC9800芯片数据手册，很好的一块芯片，艾诺等厂商都是用的这个做MP4。

51单片机做MP3 还不错 试试吧 你好

I2C 总线实际上已经成为一个国际标准在超过100 种不同的IC 上实现而且得到超过50 家公司的许可。

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The HY5DU12822DTP-xI and HY5DU121622DTP-xI are a 536,870,912-bit CMOS Double Data Rate(DDR) Synchronous DRAM, ideally suited for the main memory applications which requires large memory density and high bandwidth. This Hynix 512Mb DDR SDRAMs offer fully synchronous operations referenced to both rising and falling edges of the clock. While all addresses and control inputs are latched on the rising edges of the CK (falling edges of the /CK), Data, Data strobes and Write data masks inputs are sampled on both rising and falling edges of it. The data paths are internally pipelined and 2-bit prefetched to achieve very high bandwidth. All input and output voltage levels are compatible with SSTL_2.

RDA5280具有调频发射、调频接收的功能，性价比较高。

AXP189是国内第一片基于coms工艺的电源管理芯片，技术上已经达到国际领先水平性价比很高。

益登科技所代理的硅谷数模半导体(Analogix Semiconductor)日前针对便携式媒体设备推出的超低功耗HDMI™传输器芯片。ANX7150基于Analogix的Circuit Design 专利技术，将功耗降到了同类型芯片的95％以下，其芯片输出480i的视频时只有0.5mW，而在输出480p/720p/1080i的视频时功耗也仅为1mW，ANX7150将HDMI接口芯片的功耗大大降低，使HDMI接口得以运用于便携式电子产品中。 册