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MB89636R Datasheet(PDF) 9 Page - Fujitsu Component Limited. |
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MB89636R Datasheet(HTML) 9 Page - Fujitsu Component Limited. |
9 / 59 page MB89630R Series 9 s PIN DESCRIPTION (Continued) *1: DIP-64P-M01, DIP-64C-A06 *4: FPT-64P-M06 *2: MDP-64C-P02 *5: MQP-M64C-P01 *3: FPT-64P-M09 Pin no. Pin name Circuit type Function SH-DIP*1 MDIP*2 QFP2*3 QFP1*4 MQFP*5 30 22 23 X0 A Main clock crystal oscillator pins 31 23 24 X1 28 20 21 MOD0 D Operating mode selection pins Connect directly to VCC or VSS. 29 21 22 MOD1 27 19 20 RST C Reset I/O pin This pin is an N-ch open-drain output type with a 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”. 56 to 49 48 to 41 49 to 42 P00/AD0 to P07/AD7 F General-purpose I/O ports When an external bus is used, these ports function as the multiplex pins of the lower address output and the data I/O. 48 to 41 40 to 33 41 to 34 P10/A08 to P17/A157 F General-purpose I/O ports When an external bus is used, these ports function as an upper address output. 40 32 33 P20/BUFC H 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. 39 31 32 P21/HAK H General-purpose output port When an external bus is used, this port can also be used as a hold acknowledge by setting the BCTR. 38 30 31 P22/HRQ F 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. 37 29 30 P23/RDY F General-purpose output port When an external bus is used, this port functions as a ready input. 36 28 29 P24/CLK H General-purpose output port When an external bus is used, this port functions as a clock output. 35 27 28 P25/WR H General-purpose output port When an external bus is used, this port functions as a write signal output. 34 26 27 P26/RD H General-purpose output port When an external bus is used, this port functions as a read signal output. |
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