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FDC37C93X Fiches technique(PDF) 5 Page - SMSC Corporation |
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FDC37C93X Fiches technique(HTML) 5 Page - SMSC Corporation |
5 / 203 page 5 DESCRIPTION OF PIN FUNCTIONS PIN NO. NAME SYMBOL BUFFER TYPE PROCESSOR/HOST INTERFACE 72:79 System Data Bus SD[0:7] I/O24 41:52 System Address Bus SA[0:11] I 53 Chip Select/SA12 (Active Low)(Note 1) nCS I 70 Address Enable (DMA master has bus control) AEN I 90 I/O Channel Ready IOCHRDY OD24 80 Reset Drive RESET_DRV IS 67:61, 59:54 Interrupt Requests [1,3:12,14,15] (Polarity control for IRQ8) IRQ[1,3:12, 14,15] OD24 82,84, 86,88 DMA Requests DRQ[0:3] O24 81,83, 85,87 DMA Acknowledge nDACK[0:3] I 89 Terminal Count TC I 68 I/O Read nIOR I 69 I/O Write nIOW I 35 Serial Clock Out (24 MHz) 24CLK 08SR 36 16 MHz Out 16CLK 08SR 22 14.318MHz Clock Input CLOCKI ICLK 37 14.318MHz Clock Output 1 CLKO1 O16SR 38 14.318MHz Clock Output 2 CLKO2 08SR 39 14.318MHz Clock Output 3 CLKO3 08SR POWER PINS 21, 60, 101, 125, 139 +5V Supply Voltage VCC 1, 8, 40, 71, 95, 123, 130 Ground GND FDD INTERFACE 17 Read Disk Data nRDATA IS 12 Write Gate nWGATE OD48 11 Write Disk Data nWDATA OD48 |
Numéro de pièce similaire - FDC37C93X |
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Description similaire - FDC37C93X |
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