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74AC16472 Datasheet(PDF) 1 Page - Texas Instruments |
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74AC16472 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 8 page 54AC16472, 74AC16472 18BIT REGISTERED TRANSCIEVERS WITH 3STATE OUTPUTS SCAS165A − JUNE 1990 − REVISED APRIL 1996 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 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 ’AC16472 are 18-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 9-bit transceivers or one 18-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. When OEAB and LEAB are both low, the A-to-B latches are transparent; a subsequent low-to-high transition of LEAB puts the A latches in the storage mode. With OEAB low, the B outputs are active and reflect the data present at the output of the A latches. Data flow from B to A is similar, but requires the use of the LEBA and OEBA inputs. The 74AC16472 is packaged in TI’s shrink small-outline package (DL), which provides twice the I/O pin count and functionality of standard small-outline packages in the same printed-circuit-board area. The 54AC16472 is characterized for operation over the full military temperature range of −55 °C to 125°C. The 74AC16472 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. 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 1A1 GND 1A2 1A3 VCC 1A4 1A5 1A6 GND 1A7 1A8 1A9 2A1 2A2 2A3 GND 2A4 2A5 2A6 VCC 2A7 2A8 GND 2A9 2LEAB 2OEAB 1OEBA 1LEBA 1B1 GND 1B2 1B3 VCC 1B4 1B5 1B6 GND 1B7 1B8 1B9 2B1 2B2 2B3 GND 2B4 2B5 2B6 VCC 2B7 2B8 GND 2B9 2LEBA 2OEBA 54AC16472 . . . WD PACKAGE 74AC16472 . . . DL PACKAGE (TOP VIEW) 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. |
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