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MB89181 Datasheet(PDF) 9 Page - fujitsu semiconductor |
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MB89181 Datasheet(HTML) 9 Page - fujitsu semiconductor |
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9 / 50 page  9 MB89180 Series s PIN DESCRIPTION (Continued) *1: FPT-64P-M09 *2: FPT-64P-M06 *3: FPT-64P-M03 *4: MQP-64C-P01 Pin no. Pin name Circuit type Function QFP*1 SQFP*3 QFP*2 MQFP*4 39 40 X0 A Main clock crystal oscillator pins CR oscillation selectability (only for the mask ROM products) 38 39 X1 40 41 MODA C Operating mode selection pin Connect directly to VSS. 43 44 RST D Reset I/O pin This pin is an N-ch open drain output type with a pull- up resistor, and hysteresis input type. “L” is output from this pin by an internal reset source. The internal circuit is initialized by the input of “L”. 44 to 51 45 to 52 P07/INT27 to P00/INT20 E General-purpose I/O ports Also serve as external interrupt 2 input (wake-up function). External interrupt 2 input is hysteresis input. 21 to 23 22 to 24 P10/INT10/ SEG24 to P12/INT12/ SEG26 E/K General-purpose I/O ports Also serve as external interrupt 1 input. The interrupt 1 input is a hysteresis type. Also serve as LCD controller/driver segment output. Switching is done by the mask option. 25 26 P13/INT13/ SEG27 26 to 29 27 to 30 P14/SEG28 to P17/SEG31 F/K General-purpose I/O ports Also serve as LCD controller/driver segment output. Switching is done by the mask option. 37 38 P20/EC H General-purpose N-ch open-drain I/O port Also serves as the external clock input for the 8-bit timer counter. The resource is a hysteresis input type. 36 37 P21 I General-purpose N-ch open-drain I/O port 35 36 P22/TO I General-purpose N-ch open-drain I/O port Also serves as the 8-bit timer/counter output 34 35 P23/SI H General-purpose N-ch open-drain I/O port Also serves as the data input for the 8-bit serial I/O. The resource is a hysteresis input type. 33 34 P24/SO I General-purpose N-ch open-drain I/O port Also serves as the data output for the 8-bit serial I/O. 32 33 P25/SCK H General-purpose N-ch open-drain I/O port Also serves as the clock I/O for the 8-bit serial I/O. The resource is a hysteresis input type. |
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