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MB85RS256B Datasheet, PDF (10/32 Pages) Fujitsu Component Limited. – 256 K (32 K×8) ビットSPI | |||
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MB85RS256B
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εÏÊλεϨδελͷ BP1, BP0 Í·à®Í´ÎÎ WRITE ίÏϯÏ
Ͱͷॻà ÎÏÏ©ÏΫÏÏϩοΫÎàªà°Í°ÍÎ͢ɻ
BP1
BP0
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0
0
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0
1
6000H Ê 7FFFH ( à§Ò 1/4)
1
0
4000H Ê 7FFFH ( à§Ò 1/2)
1
1
0000H Ê 7FFFH ( Í¢Îͯ )
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WEL, WPEN, WP Í·à®Í´ÎÎ WRITE ίÏϯÏ
ÍÎͼ WRSR ίÏϯÏ
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WEL WPEN
WP ÏÏ©ÏΫÏÏϩοΫ ÎϯÏÏ©ÏΫÏÏϩοΫ εÏÊλεϨδελ
0
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X
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1
0
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CSÎâLâϨÏϧʹà¸Í¬Í¨ÎÎHOLDÎâLâϨÏϧʹ͢Îͱ, ίÏϯÏ
Íதà¢ÍÎÎÍͱͳÍÏÊϧÏ
à§à¬¶Í´à¸Í¨ÎÎ͢ɻ
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à§à¬¶Í·à¢ÎÎͱऴÎÎͷλΠÏϯά͸ , Լਤʹà£Í¢ÎÍÍ´ HOLD àºà¢ à³à¾ÍÏÊϧÏ
à§à¬¶Í´àªÒ Í Í¨Í±Í , SCK
Í âHâ ϨÏÏ§Í âLâ ϨÏϧÍÍ°ÒͳÎÎ͢ɻSCK Í âLâ ϨÏϧͷà£Í´ HOLD àºà¢ Î âLâ ϨÏÏ§Í´Í Í¨à§ß¹Í¸ , SCK Í âLâ
ϨÏϧͷà£Í´ HOLD àºà¢ Î âHâ ϨÏϧʹà»Í ͯÍÍ©ÍÍÉ»à²à¼·Í´ , SCK Í âHâ ϨÏϧͷà£Í´ HOLD àºà¢ Î âLâ ϨÏϧʹ
Í Í¨à§ß¹Í¸ , SCK Í âHâ ϨÏϧͷà£Í´ HOLD àºà¢ Î âHâ ϨÏϧʹà»Í ͯÍÍ©ÍÍÉ»ÏÊϧÏ
à§à¬¶Í°Í¸à³ÒͷίÏϯÏ
Í·à²
à¡Í¸à®¤à®
ÍÎ , SCK, SI à³à¾Í¸ donât care ͱͳÎÎ͢ɻÎͨಡà¥Í ίÏϯÏ
(RDSR, READ) Í´ÍÍͯ SO Í High-Z ʹͳÎÎ
͢ɻÏÊϧÏ
à§à¬¶Í´ÍÍͯ CS Îཱͪà§ÍÎͱ , ίÏϯÏ
ॲཧÎऴà¾Í ÎÍ¢É»Í¨Í©Í , ίÏϯÏ
à³à£àª²Í´à¤´à¾Í ͨà§ß¹ , WEL
͸ÏÊϧÏ
à§à¬¶Í´àªÒ Í¢Îલͷà®Îà¸à£Í Î͢ɻ
CS
SCK
HOLD
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à§à¬¶
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à§à¬¶
10
DS501-00021-3v0-J
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