三星90S MP3使用说明书(用户手册) 使用之前，请仔细阅读使用说明书
2010-01-12 16:58
本帖最后由 eehome 于 2013-1-5 09:55 编辑 以前做的一个定时器仿真，发出来分享一下。设计要求：基于AT89S52单片的秒表，由三个七段数码管显示组成，三个按键，一个为开始
2012-10-24 23:11
90SQ - SCHOTTKY RECTIFIER - International Rectifier
2022-11-04 17:22
90SMX-N - 32.768kHz SMD 8.7 x 3.8 x 2.5mm - EUROQUARTZ limited
2022-11-04 17:22
90SCFM - 20SCFM - List of Unclassifed Manufacturers
2022-11-04 17:22
90SMX - SURFACE-MOUNT CRYSTALS - EUROQUARTZ limited
2022-11-04 17:22
90SQ035 - Schottky Rectifier, 9 A - Vishay Siliconix
2022-11-04 17:22
90S7A - -20 ~ 70 °C commercia l application -30 ~ 75 °C on request - QUARTZCOM the communications company
2022-11-04 17:22
90SMXN - 32.768kHz SMD 8.7 x 3.8 x 2.5mm - EUROQUARTZ limited
2022-11-04 17:22
90SC15B - four-pole crystal filter with a built-in coupling capacitor - NIHON DEMPA KOGYO
2022-11-04 17:22
