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MB85RC64V Datasheet, PDF (9/32 Pages) Fujitsu Component Limited. – 64 K (8 K×8) ビットI2C
MB85RC64V
■ ιϑτ΢ΣΞϦηοτ·ͨ͸ίϚϯυϦτϥΠ
ޙ্ཱ͛ݯిͷޡಈ࡞ , I2C ௨৴தʹϚελଆ͕ॲཧΛதࢭͨ͠৔߹ , ·ͨ͸ , ༧ޡ͍ͳ͠ظಈ࡞͕ൃੜͨ͠৔߹ʹ , ࣍
ʹࣔ͢ , (1) ιϑτ΢ΣΞϦηοτΛ֤ίϚϯυͷ࣮ߦ௚લʹ , ·ͨ͸ , (2) ίϚϯυϦτϥΠΛ֤ίϚϯυͷΤϥʔ௚ޙ
ʹ , Ϛελଆ͔Β࣮ߦ͍ͯͩ͘͠͞ɻ
(1) ιϑτ΢ΣΞϦηοτ
εϨʔϒଆͷ SDA ग़ྗ͕ “L” Λग़ྗ͍ͯ͠Δ৔߹͕͋Γ·͢ͷͰ , Ϛελଆ͔Β SDA Λۦಈ͢Δ৔߹͸ , ੍ڧతʹ “H”
Λۦಈ͠ͳ͍Ͱ͍ͩ͘͞ɻόείϯϑϦΫτΛ๷͙ͨΊͰ͢ɻ͜͜ʹࣔ͢ιϑτ΢ΣΞϦηοτ͸ , ϋʔυ΢ΣΞͷ௥Ճ͸
ෆཁͰ͢ɻ
9 ճͷ “ ελʔτίϯσΟγϣϯ͓Αͼ 1 ͭͷσʔλ “1””
SCL
SDA
ελʔτίϯσΟγϣϯ͓Αͼ 1 ͭͷσʔλ “1” Λૹ৴͢Δɻ
Read ·ͨ͸ Write ίϚϯυͷ௚લʹ , ͜ΕΒΛ 9 ճ܁Γฦ͢ɻ
ϓϧΞοϓ఍߅ʹΑΔ Hi-Z ঢ়ଶ
(2) ίϚϯυϦτϥΠ
I2C ͷ௨৴தʹ༧͍ͳ͠ظԠ౴͕ฦ͖ͬͯͨ৔߹͸ , ίϚϯυΛ࠶ૹ͍ͯͩ͘͠͞ɻ
DS501-00013-6v0-J
9