sc6600m原理图，SC6600M外围接口设计,包括显示，音频、键盘、SD卡、SIM卡接口电路、基带接口电路！-the sc6600m schematics, SC6600M peripheral interface design, including display, audio, keyboard, SD card, SIM card interface circuit, baseband interface circuit!

sim卡原理图、Altium designer打开(Sim card schematic, altium designer opens)

RC522操作非接触式CPU卡和支持ISO7816协议的SIM卡（COS资料、ISO1443协议资料、rc522驱动、芯片资料、原理图）(Rc522 operates contactless CPU card and SIM card supporting ISO7816 protocol (COS data, iso1443 protocol data, rc522 driver, chip data, schematic diagram))