P89C51X2BN
P89C51X2BN/00
P89C51X2BN/00@112
P89C52BP
P89C52UBA
P89C52UBA-A
P89C52X2BA/00,512
P89C52X2BA或UBAA
P89C52X2BBD/00,557
P89C52X2BN
0755-23607487