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74AC11138DRG4 bảng dữ liệu(PDF) 1 Page - Texas Instruments |
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74AC11138DRG4 bảng dữ liệu(HTML) 1 Page - Texas Instruments |
1 / 18 page 74AC11138 3LINE TO 8LINE DECODER/DEMULTIPLEXER SCAS042B − MAY 1988 − REVISED APRIL 1996 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 D Designed Specifically for High-Speed Memory Decoders and Data Transmission Systems D Incorporates Three Enable Inputs to Simplify Cascading and/or Data Reception D Center-Pin VCC and GND Configurations Minimize High-Speed Switching Noise D EPIC (Enhanced-Performance Implanted CMOS) 1- µm Process D 500-mA Typical Latch-Up Immunity at 125 °C D Package Options Include Plastic Small-Outline (D) and Thin Shrink Small-Outline (PW) Packages, and Standard Plastic 300-mil DIPs (N) description The 74AC11138 circuit is designed to be used in high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, this decoder can be used to minimize the effects of system decoding. When employed with high-speed memories utilizing a fast enable circuit, the delay times of this decoder and the enable time of the memory are usually less than the typical access time of the memory. This means that the effective system delay introduced by the decoder is negligible. The conditions at the binary-select (A, B, C) inputs and the three enable (G1, G2A, G2B) inputs select one of eight output lines. Two active-low and one active-high enable inputs reduce the need for external gates or inverters when expanding. A 24-line decoder can be implemented without external inverters and a 32-line decoder requires only one inverter. An enable input can be used as a data input for demultiplexing applications. The 74AC11138 is characterized for operation from −40 °C to 85°C. FUNCTION TABLE ENABLE INPUTS SELECT INPUTS OUTPUTS G1 G2A G2B C B A Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7 X H X X X X H H H H H H H H X XH X XX H HH HH HH H L XX X XX H HH HH HH H H LL L LL L HH HH HH H H LL L LH H L H HH HH H H LL L HLH H L HH HH H H LL L HH H HH L H HH H H LL H LL H HH H L HH H H LL H LH H HH HH L H H H LL H HLH HH HH H L H H L L H H H H H H H H H H L Copyright 1996, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. EPIC is a trademark of Texas Instruments Incorporated. 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 Y1 Y2 Y3 GND Y4 Y5 Y6 Y7 Y0 A B C VCC G1 G2A G2B D, N, OR PW PACKAGE (TOP VIEW) |
Số phần tương tự - 74AC11138DRG4 |
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Mô tả tương tự - 74AC11138DRG4 |
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