89C538 flash equivalent, 80c51 8-bit microcontroller family 16k/64k/512 flash.
ADDRESS BUS * 80C51 Central Processing Unit * 8k x 8 (89C535) 16k × 8 (89C536) or 64k × 8 (89C538), FLASH EPROM Program Memory SU00830 * 512 × 8 RAM, exte.
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