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FDC37C957FR Folha de dados(PDF) 11 Page - SMSC Corporation |
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FDC37C957FR Folha de dados(HTML) 11 Page - SMSC Corporation |
11 / 328 page 5 Pin # Name Description Supply Voltage Type 53 PS2DAT/ 8051TX/ GPIO[21] PS2 Serial Data VCC2 I/OD24 Serial IRQ / UART IRQs 101 SIRQ / IRQ3(UA1) Serial Interrupt UART1 Interrupt VCC2 I/O24 /O24 99 PSBCLK PCI Clock input VCC2 I 100 PSBDAT UART2 Interrupt VCC2 I/O24 /O24 FDD INTERFACE The following FDC output pins can be configured as either Open Drain outputs capable of sinking 24mA (OD24) or as push-pull outputs capable of driving 12mA and sinking 24mA (O24). The FDC output pins must tristate when the FDC is in powerdown mode (it is required that the board designer provide external pull-up resistors on these output pins). 17 nRDATA Read Disk Data VCC2 IS 12 nWGATE Write Gate VCC2 O24 / OD24 11 nWDATA Write Disk Data VCC2 O24 / OD24 13 nHDSEL Head Select (1 = side 0 ) VCC2 O24 / OD24 9 nDIR Step Direction (1 = out ) VCC2 O24 / OD24 10 nSTEP Step Pulse VCC2 O24 / OD24 18 nDSKCHG Disk Change VCC2 IS |
Nº de peça semelhante - FDC37C957FR |
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Descrição semelhante - FDC37C957FR |
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