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MB89677APF Datasheet(PDF) 8 Page - Fujitsu Component Limited. |
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MB89677APF Datasheet(HTML) 8 Page - Fujitsu Component Limited. |
8 / 59 page 8 MB89670/A Series s PIN DESCRIPTION (Continued) *1: FPT-80P-M11 *2: FPT-80P-M06 *3: MQP-80C-P01 Pin no. Pin name Circuit type Function QFP*1 QFP*2 MQFP*3 11 13 X0 A Clock oscillator pins 12 14 X1 9 11 MOD0 B Operating mode selection pins Connect directly to VCC or VSS. 10 12 MOD1 14 16 RST C Reset I/O pin This pin is an N-ch open-drain output type with pull-up resistor and a hysteresis input. “L” is output from this pin by an internal reset source. The internal circuit is initialized by the input of “L”. 38 to 31 40 to 33 P00/AD0 to P07/AD7 D General-purpose I/O ports When an external bus is used, these ports function as multiplex pins of lower address output and data I/O. 30 to 23 32 to 25 P10/A08 to P17/A15 General-purpose I/O ports When an external bus is used, these ports function as upper address output pins. 22 24 P20/BUFC F General-purpose output port When an external bus is used, this port can also be used as a buffer control output by setting the BCTR. 21 23 P21/HAK F General-purpose output port When an external bus is used, this port can also be used as a hold acknowledge output by setting the BCTR. 20 22 P22/HRQ D General-purpose output port When an external bus is used, this port can also be used as a hold request input by setting the BCTR. 19 21 P23/RDY D General-purpose output port When an external bus is used, this port functions as a ready input. 18 20 P24/CLK F General-purpose output port When an external bus is used, this port functions as a clock output. 17 19 P25/WR F General-purpose output port When an external bus is used, this port functions as a write signal output. 16 18 P26/RD F General-purpose output port When an external bus is used, this port functions as a read signal output. 15 17 P27/ALE F General-purpose output port When an external bus is used, this port functions as an address latch signal output. |
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