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74AC16543DL Arkusz danych(PDF) 1 Page - Texas Instruments |
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74AC16543DL Arkusz danych(HTML) 1 Page - Texas Instruments |
1 / 9 page 54AC16543, 74AC16543 16-BIT REGISTERED TRANSCEIVERS WITH 3-STATE OUTPUTS SCAS125B – MARCH 1990 – REVISED APRIL 1996 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Members of the Texas Instruments Widebus ™ Family D 3-State True Outputs D Flow-Through Architecture Optimizes PCB Layout D Distributed VCC and GND Pin Configuration Minimizes 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 300-mil Shrink Small-Outline (DL) Package Using 25-mil Center-to-Center Pin Spacings and 380-mil Fine-Pitch Ceramic Flat (WD) Package Using 25-mil Center-to-Center Pin Spacings description The ’AC16543 are 16-bit registered transceivers that contain two sets of D-type latches for temporary storage of data flowing in either direction. They can be used as two 8-bit transceivers or one 16-bit transceiver. Separate latch-enable (LEAB or LEBA) and output-enable (OEAB or OEBA) inputs are provided for each register to permit independent control in either direction of data flow. The A-to-B enable (CEAB) input must be low to enter data from A or to output data to B. Having CEAB low and LEAB low makes the A-to-B latches transparent; a subsequent low-to-high transition at LEAB puts the A latches in the storage mode. Data flow from B to A is similar, but requires using the CEBA, LEBA, and OEBA inputs. The 74AC16543 is packaged in TI’s shrink small-outline package, which provides twice the I/O pin count and functionality of standard small-outline packages in the same printed-circuit-board area. The 54AC16543 is characterized for operation over the full military temperature range of –55 °C to 125°C. The 74AC16543 is characterized for operation from –40 °C to 85°C. Copyright © 1996, Texas Instruments Incorporated UNLESS OTHERWISE NOTED this document contains PRODUCTION DATA information 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. EPIC and Widebus are trademarks of Texas Instruments Incorporated. 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. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 1OEAB 1LEAB 1CEAB GND 1A1 1A2 VCC 1A3 1A4 1A5 GND 1A6 1A7 1A8 2A1 2A2 2A3 GND 2A4 2A5 2A6 VCC 2A7 2A8 GND 2CEAB 2LEAB 2OEAB 1OEBA 1LEBA 1CEBA GND 1B1 1B2 VCC 1B3 1B4 1B5 GND 1B6 1B7 1B8 2B1 2B2 2B3 GND 2B4 2B5 2B6 VCC 2B7 2B8 GND 2CEBA 2LEBA 2OEBA 54AC16543 . . . WD PACKAGE 74AC16543 . . . DL PACKAGE (TOP VIEW) |
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