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74ABT3284 데이터시트(PDF) 1 Page - National Semiconductor (TI) |
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74ABT3284 데이터시트(HTML) 1 Page - National Semiconductor (TI) |
1 / 12 page TLF11582 October 1995 74ABT3284 18-Bit Synchronous Datapath Multiplexer General Description The 74ABT3284 is a synchronous datapath buffer designed to transmit four 9-bit bytes of data onto one or two 9-bit bytes in 21 or 41 multiplexed configurations In addition the non-inverting transceiver supports bidirectional data transfer in transparent or registered modes A data byte from any one of the six ports can be stored during transpar- ent operation for later recall Data input to any port may also be read back to itself for byte manipulation or system self-di- agnostic purposes The 74ABT3284 is useful for interleaving data in memory applications or for use in bus-to-bus communications where variations in data word length or construction are required Features Y Advanced BiCMOS technology provides high speed at low power consumption Y 18-bit 21 or 9-bit 41 multiplexed modes Y Registered or transparent datapath operation Y Output enables and select lines have the option of be- ing synchronized for pipelined operation Y Independent input output register and control synchro- nizing clocks insure maximum timing flexibility Y Independent control signals insure functional flexibility Y Guaranteed simultaneous switching noise level and dynamic threshold performance Y Guaranteed latchup protection Y High impedance glitch free bus loading during entire power up and power down cycle Y Non-destructive hot insertion capability Commercial Package Number Package Description 74ABT3284VJG VJG100A 100-Lead (14mm x 14mm) Molded Plastic Quad Flatpak JEDEC Connection Diagram TLF11582 – 1 Pin Assignment Pin Pin Pin Pin 1 Mode SO 26 VCC 51 CP IN 76 VCC 2CP AX 27 A8 52 OEB 77 D8 3 OEC 28 A7 53 LDBI 78 D7 4 LDCI 29 A6 54 LDBO 79 D6 5 LDCO 30 GND 55 Mode W 80 GND 6SA2X1 31 A5 56 YSEL 81 D5 7SA2X0 32 A4 57 OEY 82 D4 8X0 33 A3 58 Y8 83 D3 9X1 34 A2 59 Y7 84 D2 10 GND 35 GND 60 GND 85 GND 11 X2 36 A1 61 Y6 86 D1 12 X3 37 A0 62 Y5 87 D0 13 X4 38 VCC 63 Y4 88 VCC 14 X5 39 B0 64 Y3 89 C0 15 X6 40 B1 65 Y2 90 C1 16 GND 41 GND 66 GND 91 GND 17 X7 42 B2 67 Y1 92 C2 18 X8 43 B3 68 Y0 93 C3 19 OEX 44 B4 69 LDDO 94 C4 20 XSEL0 45 B5 70 LDDI 95 C5 21 XSEL1 46 GND 71 ASEL1 96 GND 22 LDAO 47 B6 72 ASEL0 97 C6 23 LDAI 48 B7 73 OED 98 C7 24 OEA 49 B8 74 CP XA 99 C8 25 VCC 50 VCC 75 Mode SC 100 VCC TRI-STATE is a registered trademark of National Semiconductor Corporation C1995 National Semiconductor Corporation RRD-B30M125Printed in U S A |
유사한 부품 번호 - 74ABT3284 |
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유사한 설명 - 74ABT3284 |
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