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54ACT16474 数据表(PDF) 1 Page - Texas Instruments |
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54ACT16474 数据表(HTML) 1 Page - Texas Instruments |
1 / 7 page 54ACT16474, 74ACT16474 18BIT REGISTERED BUS TRANSCEIVERS WITH 3STATE OUTPUTS SCAS238A − MAY 1992 − 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 Inputs Are TTL-Voltage Compatible D 3-State Outputs Drive Bus Lines Directly D Flow-Through Architecture Optimizes PCB Layout D Distributed VCC and GND Pin 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 300-mil Shrink Small-Outline (DL) Packages Using 25-mil Center-to-Center Pin Spacings and 380-mil Fine-Pitch Ceramic Flat (WD) Packages Using 25-mil Center-to-Center Pin Spacings description The ’ACT16474 are noninverting 18-bit registered bus transceivers composed of two 9-bit sections with separate control signals. For either 9-bit transceiver section, data flow in the A-to-B mode is controlled by output-enable (1OEAB or 2OEAB) and clock (1CLKAB or 2CLKAB) inputs. When 1OEAB or 2OEAB is low, the corresponding outputs are active (high or low) and take on either the current data on low-to-high transition of 1CLKAB or 2CLKAB or the previously stored data if 1CLKAB or 2CLKAB is low. When 1OEAB or 2OEAB is high, the corresponding outputs are in the high-impedance state. 1OEAB or 2OEAB does not affect the operation on the internal registers. Previously stored data can be retained or new data can be entered while the outputs are in the high-impedance state. Data flow from B to A is similar, but uses 1OEBA and/or 2OEBA and 1CLKBA and/or 2CLKBA. The 74ACT16474 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 54ACT16474 is characterized for operation over the full military temperature range of −55 °C to 125°C. The 74ACT16474 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. 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 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 1CLKAB 1A1 GND 1A2 1A3 VCC 1A4 1A5 1A6 GND 1A7 1A8 1A9 2A1 2A2 2A3 GND 2A4 2A5 2A6 VCC 2A7 2A8 GND 2A9 2CLKAB 2OEAB 1OEBA 1CLKBA 1B1 GND 1B2 1B3 VCC 1B4 1B5 1B6 GND 1B7 1B8 1B9 2B1 2B2 2B3 GND 2B4 2B5 2B6 VCC 2B7 2B8 GND 2B9 2CLKBA 2OEBA 54ACT16474 . . . WD PACKAGE 74ACT16474 . . . DL PACKAGE (TOP VIEW) |
类似零件编号 - 54ACT16474 |
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类似说明 - 54ACT16474 |
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