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MB89677ARPF Datasheet(PDF) 9 Page - Fujitsu Component Limited. |
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MB89677ARPF Datasheet(HTML) 9 Page - Fujitsu Component Limited. |
9 / 59 page 9 MB89670R/670AR Series s PIN DESCRIPTION (Continued) *1: FPT-80P-M11 *2: FPT-80P-M06 *3: MQP-80C-P01 Pin no. Pin name Circuit type Function LQFP*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 of a N-ch open-drain output type with pull-up resistor and a hysteresis input type. “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 D 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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