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LS7166 数据表(PDF) 13 Page - LSI Computer Systems |
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LS7166 数据表(HTML) 13 Page - LSI Computer Systems |
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13 / 15 page ![]() 7166-110103-13 16 17 3 4 6 7 GND VDD CY BW LCTR/LLTC RBGT/RCTR A COUNT IN B COUNT IN D0 D1 D2 D3 D4 D5 D6 D7 8 9 10 11 12 13 14 15 PC0 PC1 PC2 PC3 PC4 PC5 PC6 PC7 A0 CS/ 2 WR/ 1 RD/ 19 ADDRESS DECODE D Q CLK Q CL PR 74HC74 2 5 6 9 12 15 16 19 Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 20 LS7166 +5V +5V 5 6 4 2 1 3 1 4 5 6 74HC08 U5 A U6 B 74HC04 1 2 3 4 74HC04 74HC08 U6 A U5 B 74HC373 68HC11A1 27 26 28 25 24 42 43 44 45 46 47 31 32 33 34 35 36 37 38 16 15 14 13 12 11 10 9 5 4 3 2 1 PA3 PA4 PA5 PA6 PA7 PB0 PB1 PB2 PB3 PB4 PB5 PB6 PB7 PC0 PC1 PC2 PC3 PC4 PC5 PC6 PC7 PD0 PD1 PD2 PD3 PD4 PD5 MODA MODB U1 30 29 39 41 40 8 7 6 17 18 19 20 22 21 XTAL EXTAL RESET IRQ XIRD PA0 PA1 PA2 PE0 PE1 PE2 PE3 YRH YRL PC0 PC1 PC2 PC3 PC4 PC5 PC6 PC7 PC0 PC1 PC2 PC3 PC4 PC5 PC6 PC7 3 4 7 8 13 14 17 18 1 11 U3 OC G D0 D1 D2 D3 D4 D5 D6 D7 C/D CS WR RD FIGURE 11. LS7166 TO 68HC11 INTERFACE 18 2 E AS RW |
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