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5962-85016013A Datasheet(PDF) 2 Page - Intersil Corporation |
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5962-85016013A Datasheet(HTML) 2 Page - Intersil Corporation |
2 / 20 page 4-2 Functional Diagram Pinouts 82C59A (PDIP, CERDIP, SOIC) TOP VIEW 82C59A (PLCC, CLCC) TOP VIEW PIN DESCRIPTION D7 - D0 Data Bus (Bidirectional) RD Read Input WR Write Input A0 Command Select Address CS Chip Select CAS 2 - CAS 0 Cascade Lines SP/EN Slave Program Input Enable INT Interrupt Output INTA Interrupt Acknowledge Input IR0 - IR7 Interrupt Request Inputs CS WR RD D7 D6 D5 D4 D3 D2 D1 D0 CAS 0 CAS 1 GND VCC INTA IR7 IR6 IR5 IR3 IR1 IR0 INT SP/EN CAS 2 A0 IR4 IR2 28 27 26 25 24 23 22 21 20 19 18 17 16 15 1 2 3 4 5 6 7 8 9 10 11 12 13 14 23 24 25 22 21 20 19 11 3 2 1 4 14 15 16 17 18 12 13 28 27 26 10 5 6 7 8 9 D6 D5 D4 D3 D2 D1 D0 IR7 IR6 IR5 IR4 IR3 IR2 IR1 PRIORITY RESOLVER IR0 IR1 IR2 IR3 IR4 IR5 IR6 IR7 INTERRUPT REQUEST REG (IRR) INTERRUPT MASK REG (IMR) CONTROL LOGIC INTERNAL BUS INT DATA BUS BUFFER CASCADE BUFFER COMPARATOR CAS 0 CAS 1 CAS 2 READ/ WRITE LOGIC SP/EN WR RD INTA IN - SERVICE REG (ISR) CS D7-D0 A0 FIGURE 1. 82C59A |
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