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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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T89C51RD2-3CWC-L 数据表(PDF) 65 Page - ATMEL Corporation |
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T89C51RD2-3CWC-L 数据表(HTML) 65 Page - ATMEL Corporation |
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65 / 86 page  65 Rev. F - 15 February, 2001 T89C51RD2 Mode Name Mode Rst Psen Ale __ |_| EA P2.6 P2.7 P3.6 P3.7 P0[7..0] PELCK Program or Erase Lock. Disable the Erasure or Programming access 10 __ |_| 1 1 0 1 0 xx PEULCK Program or Erase UnLock. Enable the Erasure or Programming access 1 0 Note3 1 1 0 1 0 55-AA PGMC Write Code Data (byte) or write Page Always precedeed by PGML 10 __ |_| Internally timed 1 0 111 xx PGML Memory Page Load (up to 128 bytes) 1 0 Note2 1 0 1 0 1 Din PGMV Read Code Data (byte) 1 0 1 1 0 __ |_| 1 1 Dout VSB Read Security Byte (=HSB) 1 0 1 1 0 __ |_| 0 1 Dout PGMS Write Security Byte (Note 4) (security byte = HSB) 1 0 10ms 1 1 1 0 0 Din CERR Chip Erase User + XAF 1 0 10ms 1 1 0 0 0 xx PGXC Write Byte or Page in Extra Memory (XAF) Always precedeed by PGXL 10 __ |_| Internally timed 1 1 101 xx PGXL Memory Page Load XAF (up to 128 bytes) 1 0 Note2 1 1 1 0 1 Din TMS Read Signature bytes 30h (Manufacturer code) 31h (Device ID #1) 60h (Device ID #2) 61h (Device ID #3) 10 1 1 0 __ |_| 0 0 Dout = 58h D7h FCh FFh RXAF Read Extra Memory (XAF) 10 1 1 0 __ |_| 0 0 Dout |
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