AT89C51_中文资料 AT89C51 ATMEL CMOS 8 4k bytes PEROM ! 128 bytes "#$% RAM &'( ATMEL )* +,- ./ CPU ! Flash > ?@A AT89C51 BCD 0123 MCS-51 4567 89( 8 :; HIJ(KL MNJ(OPQRSTU $ MCS 51 4567n01 [\¤ §¨ ]^ n|} ° ±° j) ± [\_ ± ` ab ± ` def$ `:k qr 9 ?! ?V WX AT89C51 DEYZ23? 4k [\ Flash ]^ 128 [\_ RAM 32 ` I/O ab c` 16 de/f$ de/f$ qr9sav:k67 g` 5 hicj:klm g`nopqr9sa tu vew x ye AT89C51 z{ 0Hz |}~ cQ&\ p CPU p F RAM p RAM :1 tu p_&pZg`& ? a ag xoh a /$%b(a B×a(e 8 ` TTL ~ x àáa B×á( è_$% é e êabeìí !$%b( N_ Flash e P0 aò45[\ óe ×45[\ e èò a P1 g`÷_ 8 oh I/O a x àáa 1 `è_se×g` (I) Flash ! P1 ò 8 a P2 g`÷_ 8 oh I/O a P2 ×ùj é× 4 ` TTL ~ x àáa 1 9ú_……