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74AC11652 数据表(PDF) 1 Page - Texas Instruments |
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74AC11652 数据表(HTML) 1 Page - Texas Instruments |
1 / 9 page 74AC11652 OCTAL BUS TRANSCEIVER AND REGISTERS WITH 3-STATE OUTPUTS SCAS088A - DECEMBER 1989 - REVISED APRIL 1996 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Independent Registers and Enables for A and B Buses D Multiplexed Real-Time and Stored Data D Inverting Data Paths D Flow-Through Architecture Optimizes PCB Layout 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 description The 74AC11652 consists of bus transceiver circuits, D-type flip-flops, and control circuitry arranged for multiplexed transmission of data directly from the data bus or from the internal storage registers. Output-enable (OEAB and OEBA) inputs are provided to control the transceiver functions. The select-control (SAB and SBA) inputs are provided to select whether real-time or stored data is transferred. A low input level selects real-time data, and a high input level selects stored data. Figure 1 illustrates the four fundamental bus-management functions that can be performed with the 74AC11652. Data on the A or B bus, or both, can be stored in the internal D flip-flops by low-to-high transitions at the appropriate clock (CLKAB or CLKBA) inputs, regardless of the select- or enable-control pins. When SAB and SBA are in the real-time transfer mode, it is also possible to store data without using the internal D-type flip-flops by simultaneously enabling OEAB and OEBA. In this configuration, each output reinforces its input. Thus, when all other data sources to the two sets of bus lines are at high impedance, each set remains at its last state. The 74AC11652 is characterized for operation from – 40 °C to 85°C. 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. DW PACKAGE (TOP VIEW) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 OEAB A1 A2 A3 A4 GND GND GND GND A5 A6 A7 A8 OEBA CLKAB SAB B1 B2 B3 B4 VCC VCC B5 B6 B7 B8 CLKBA SBA |
类似零件编号 - 74AC11652 |
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类似说明 - 74AC11652 |
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