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MB91F133PBT Datasheet(PDF) 11 Page - Fujitsu Component Limited. |
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MB91F133PBT Datasheet(HTML) 11 Page - Fujitsu Component Limited. |
11 / 123 page MB91133/MB91F133 11 s PIN DESCRIPTIONS (Continued) Pin No. Pin name Circuit type Function 1 2 3 4 5 6 7 8 D16/P20 D17/P21 D18/P22 D19/P23 D20/P24 D21/P25 D22/P26 D23/P27 C External data bus bits 16 to 23 Only valid for external bus 16-bit mode. Can be used as ports in single-chip and external bus 8-bit modes. 10 11 12 13 14 15 16 17 D24/P30 D25/P31 D26/P32 D27/P33 D28P34 D29/P35 D30/P36 D31/P37 C External data bus bits 24 to 31 Can be used as ports in single-chip mode. 18 19 20 21 22 23 24 25 28 29 30 31 32 33 34 35 A00/P40 A01/P41 A02/P42 A03/P43 A04/P44 A05/P45 A06/P46 A07/P47 A08/P50 A09/P51 A10/P52 A11/P53 A12/P54 A13/P55 A14/P56 A15/P57 F External address bus bits 0 to 15 Valid for external bus mode. Can be used as ports in single-chip mode. 36 37 38 39 40 41 42 43 A16/INT16/P60 A17/INT17/P61 A18/INT18/P62 A19/INT19/P63 A20/INT20/P64 A21/INT21/P65 A22/INT22/P66 A23/INT23/P67 O External address bus bits 16 to 23 [ INT16 to 23 ] are external interruption request inputs 16 to 23. These inputs are always used when dealing with external interrup- tions is permitted, so output by ports should be stopped except when carried out intentionally. Can be used as ports when address bus and external interruption request input are not used. 45 RDY/P80 C External RDY input This function is valid when external RDY input is permitted. “0” is input if the bus cycle being executed is not completed. Can be used as a port when the external RDY input is not used. |
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