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求推荐一款TI蓝牙2.1+EDR芯片

Other Parts Discussed in Thread: CC2560, CC2564, CC2540, CC2541

需求如下:

1,bluetooth2.1+DER

2,pin(管脚)越少越好,2560 2564管脚太多

3,几个IO

最好

1,system-on-chip 单芯片方案

2,low-cost 低端廉价

2540/41就挺好,可惜只是4.0单模