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データシートサーチシステム |
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4250 データシート(PDF) 55 Page - Renesas Technology Corp |
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4250 データシート(HTML) 55 Page - Renesas Technology Corp |
55 / 59 page ![]() 54 MITSUBISHI MICROCOMPUTERS 4250 Group SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER Fig. 31 Pin configuration of built-in PROM version Table 15 Product of built-in PROM version *: Under development PROM size (! 9 bits) 2048 words RAM size (! 4 bits) 64 words Product M34250E2-XXXFP * M34250E2FP * ROM type One Time PROM [shipped after writing] (shipped after writing and test in factory) One Time PROM [shipped in blank] Package 20P2N-A PIN CONFIGURATION (TOP VIEW) BUILT-IN PROM VERSION In addition to the mask ROM versions, the 4250 Group has the One Time PROM versions whose PROMs can only be written to and not be erased. The built-in PROM version has functions similar to those of the mask ROM versions, but it has PROM mode that enables writing to built-in PROM. Table 15 shows the product of built-in PROM version. Figure 31 and 32 show the pin configurations of built-in PROM versions. The One Time PROM version has pin-compatibility with the mask ROM version. VDD 2 3 4 5 6 7 8 9 10 1 19 D2/C XIN 18 17 16 15 14 13 12 11 20 G2 S0 S1 S2 S3 D3/K D1 D0 G3 VSS G1/TOUT G0/INT RESET XOUT CNVSS F0 F1 Outline 20P2N-A |
同様の部品番号 - 4250 |
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同様の説明 - 4250 |
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