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Motore di ricerca datesheet componenti elettronici |
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Motore di ricerca datesheet componenti elettronici |
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MB90573 Scheda tecnica(PDF) 8 Page - fujitsu semiconductor |
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MB90573 Scheda tecnica(HTML) 8 Page - fujitsu semiconductor |
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8 / 135 page  8 MB90570 Series s PIN DESCRIPTION Pin no. Pin name Circuit type Function LQFP-120 *1 QFP-120 *2 92,93 X0,X1 A High speed oscillator input pins 74,73 X0A,X1A B Low speed oscillator input pins 89 to 87 MD0 to MD2 C These are input pins used to designate the operating mode. They should be connected directly to Vcc or Vss. 90 RST C Reset input pin 86 HST C Hardware standby input pin 95 to 102 P00 to P07 D In single chip mode, these are general purpose I/O pins. When set for input, they can be set by the pull-up resistance setting register (RDR0). When set for output, this setting will be invalid. AD00 to AD07 In external bus mode, these pins function as address low output/data low I/O pins. 103 to 110 P10 to P17 D In single chip mode, these are general purpose I/O pins. When set for input, they can be set by the pull-up resistance setting register (RDR1). When set for output, the setting will be invalid. AD08 to AD15 In external bus mode, these pins function as address middle output/data high I/O pins. 111 to 118 P20 to P27 E In single chip mode this is a general-purpose I/O port. A16 to A23 In external bus mode, these pins function as address high output pins. 120 P30 E In single chip mode this is a general-purpose I/O port. ALE In external bus mode, this pin functions as the address latch enable signal output pin. 1P31 E In single chip mode this is a general-purpose I/O port. RD In external bus mode, this pin functions as the read strobe signal output pin. 2P32 E In single chip mode this is a general-purpose I/O port. WRL In external bus mode, this pin functions as the data bus lower 8-bit write strobe signal output pin. 3P33 E In single chip mode this is a general-purpose I/O port. WRH In external bus mode, this pin functions as the data bus upper 8-bit write strobe signal output pin. 4P34 E In single chip mode this is a general-purpose I/O port. HRQ In external bus mode, this pin functions as the hold request signal input pin. 5P35 E In single chip mode this is a general-purpose I/O port. HAK In external bus mode, this pin functions as the hold acknowledge signal output pin. 6P36 E In single chip mode this is a general-purpose I/O port. RDY In external bus mode, this pin functions as the ready signal input pin. *1: FPT-120P-M05 *2: FPT-120P-M13,FPT-120P-M21 (Continued) |
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