at89c51--外文翻译,features compatible with mcs-51™ products 4k bytes of in-system reprogrammable flash memory╟ endurance: 1,000 write/erase cycles fully static operation: 0 hz to 24 mhz three-level program memory lock 128 x 8-bit internal ram 32 programmable i/o lines two 16-bit timer/counters six interrup..