◆MCS-51引脚配置图 P10日1 40 Vcc P11日2 39P00(AD0) P123 38P0.l(AD1) P13d4 37P02(AD2 P14日5 36P03AD3 P1546 35P04AD4) P1.67 34pP0(AD5) P178 33P0(AD6 RST/VPD9 32P0(AD7 RXD)P30可10 31F EA/VpP (TXD)P3.1 30F ALE/PROG ①NToP32 29F PSEN (INm)P3313 28P7(A15 TO)P3. 4 27hP2(A14) (TI)P3.5 26BP2(A13) (WR)P3.6=16 25P24(A12 RD)P37中17 24}P23(Al XTAL2 =18 23P22(A10) XTAL1 E19 22P2l(A9) GND E20 21PA8) MCS-51引脚配置图