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AT89C5122D-RDRUM 数据表(PDF) 30 Page - ATMEL Corporation |
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AT89C5122D-RDRUM 数据表(HTML) 30 Page - ATMEL Corporation |
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30 / 208 page  30 AT83R5122, AT8xC5122/23 4202F–SCR–07/2008 AT83C5123 Version The AT83C5123 device is a low pin count version of the AT8xC5122. The ROM version implements : - 30 KB of ROM mapped from 0000 to 77FF in which is embedded the user code. The ROM device is only factory programmable. - 512 bytes of E2PROM can be optionally implemented to store permanent data Figure 14. AT83C5123’s Device PROGRAM MEMORY (Read only) 7FFF INTERNAL 30K ROM RESET@ <0000> SFR Space 80 FF On-chip 512 bytes XRAM 0000 01FF 00 7F 80 FF Upper 128 Bytes RAM Lower 128 Bytes RAM DATA MEMORY (Read / Write) On-Chip 256 bytes RAM Direct Addressing Indirect Addressing 512 Bytes INTERNAL E2PROM 01FF 0000 OPTIONAL |
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