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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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PC87311A 데이터시트(PDF) 1 Page - National Semiconductor (TI) |
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PC87311A 데이터시트(HTML) 1 Page - National Semiconductor (TI) |
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1 / 78 page  TLF11362 October 1993 PC87311APC87312 (SuperIO TM IIIII) Floppy Disk Controller with Dual UARTs Parallel Port and IDE Interface General Description The PC87311A12 incorporates a floppy disk controller (FDC) two full function UARTs a bidirectional parallel port and IDE interface control logic in one chip The PC87311A includes standard ATXT address decoding for on-chip functions and a Configuration Register offering a single chip solution to the most commonly used IBM PC PC-XT and PC-AT peripherals The PC87312 includes standard AT address decoding for on-chip functions and a Configuration Register set offering a single chip solution to the most commonly used ISA EISA and Micro Channel pe- ripherals The on-chip FDC is software compatible to the PC8477 which contains a superset of the DP8473 and NEC mPD765 and the N82077 floppy disk controller functions The on- chip analog data separator requires no external compo- nents and supports the 4 Mb drive format as well as the other standard floppy drives used with 525 and 35 me- dia In the PC87311A the UARTs are equivalent to two INS8250N-Bs or NS16450s The bidirectional parallel port maintains complete compatibility with the IBM PC XT and AT In the PC87312 the UARTs are equivalent to two NS16450s or PC16550s The bidirectional parallel port maintains complete compatibility with the ISA EISA and Mi- cro Channel parallel ports The IDE control logic provides a complete IDE interface ex- cept for the signal buffers The Configuration Registers con- sist of three byte-wide registers An Index and a Data Regis- ter which can be relocated within the ISA IO address space access the Configuration Registers Features Y 100% compatible with IBM PC XT and AT architec- tures (PC87311A) or ISA EISA and Micro Channel ar- chitectures (PC87312) Y FDC Software compatible with the DP8473 the 765A and the N82077 16-byte FIFO (default disabled) Burst and Non-Burst modes Perpendicular Recording drive support High performance internal analog data separator (no external filter components required) Low power CMOS with power down mode Y UARTs Software compatible with the INS8250N-B and the NS16450 (PC87311A) or PC16550A and PC16450 (PC87312) Y Parallel Port Bidirectional under either software or hardware control Compatible with all IBM PC XT and AT architectures (PC87311A) or all ISA EISA and Micro Channel ar- chitectures (PC87312) Back Voltage protection circuit against damage caused when printer is powered up Y IDE Control Logic Provides a complete IDE interface except for option- al buffers Y Address Decoder Provides selection of all primary and secondary ISA addresses including COM 1 – 4 Y 100-pin PQFP package The PC87311A and PC87312 are pin compatible Block Diagram TLF11362 – 1 TRI-STATE is a registered trademark of National Semiconductor Corporation SuperIOTM is a trademark of National Semiconductor Corporation IBM PC PC-AT PC-XT and PS2 are registered trademarks of International Business Machines Corporation C1995 National Semiconductor Corporation RRD-B30M75Printed in U S A |
유사한 부품 번호 - PC87311A |
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유사한 설명 - PC87311A |
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