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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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UPD78P083 датащи(PDF) 13 Page - NEC |
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UPD78P083 датащи(HTML) 13 Page - NEC |
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13 / 56 page  13 µPD78P083 Parameter µPD78P083 Mask ROM Versions ROM type One-time PROM/EPROM Mask ROM ROM capacity 24 Kbytes µPD78081 : 8 Kbytes µPD78082 : 16 Kbytes Internal high-speed RAM capacity 512 bytes µPD78081 : 256 bytes µPD78082 : 384 bytes Internal ROM and internal high-speed Can be changed Note Can not be changed RAM capacity change by internal memory size switching register IC pin No Yes VPP pin Yes No Electrical specifications Refer to a data sheet of each product 1. DIFFERENCES BETWEEN THE µPD78P083 AND MASK ROM VERSIONS The µPD78P083 is a single-chip microcontroller with an on-chip one-time PROM or with an on-chip EPROM which has program write, erasure and rewrite capability. Setting the internal memory size switching register (IMS) makes the functions except the PROM specification identical to the mask ROM versions, that is, the µPD78081 and µPD78082. Differences between the µPD78P083 and mask ROM versions are shown in Table 1-1. Table 1-1. Differences between the µPD78P083 and Mask ROM Versions Note The internal PROM becomes 24 Kbytes and the internal expansion RAM becomes 512 bytes by the RESET input. |
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