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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ELANSC310 датащи(PDF) 58 Page - Advanced Micro Devices |
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ELANSC310 датащи(HTML) 58 Page - Advanced Micro Devices |
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58 / 119 page  58 Élan™SC310 Microcontroller Data Sheet PREL IMINARY Notes: All Pull-Up and Pull-Down resistor requirements are specified in ohms. 1. This pin is an “alternate pin function select input” that is sampled at reset. This pin functions as a normal serial port output after RESIN and IORESET are deasserted. 2. When this pin’s function is a DMA request input, it should be terminated with a pulldown resistor if not connected to an external device that drives to a known state. 3. If this ÉlanSC310 microcontroller input is always driven to a known state, then no external termination is required. 4. If the pin is configured as an input, it should be terminated with a discrete pull-up or pull-down resistor, or it should always be driven to a known state. Signal Name Pin No. Local Bus Maximum ISA Notes Pull Up Pull Down Pull Up Pull Down ERROR 86 4.7K 4.7K ACK 88 4.7K 4.7K BUSY 85 4.7K 4.7K PE 82 4.7K 4.7K SLCT 87 4.7K 4.7K PGP0 189 100K 100K 4 PGP1 188 100K 100K 4 ACIN 101 10K 10K 3 BL1 106 100K 100K 3 BL2 107 100K 100K 3 BL3 108 100K 100K 3 BL4 109 100K 100K 3 SOUT 94 10K Table 25. External Resistor Requirements (Continued) |
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