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74AC11374DW Datasheet(PDF) 1 Page - Texas Instruments |
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74AC11374DW Datasheet(HTML) 1 Page - Texas Instruments |
1 / 7 page 74AC11374 OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOP WITH 3-STATE OUTPUTS SCAS214A – JULY 1987 – REVISED APRIL 1996 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Eight D-Type Flip-Flops in a Single Package D 3-State Bus-Driving True Outputs D Full Parallel Access for Loading D Flow-Through Architecture Optimizes PCB Layout D Center-Pin VCC and GND Configurations Minimize High-Speed Switching Noise D EPICt (Enhanced-Performance Implanted CMOS) 1- mm Process D 500-mA Typical Latch-Up Immunity at 125 °C D Package Options Include Plastic Small-Outline (DW) and Shrink Small-Outline (DB) Packages, and Standard Plastic 300-mil DIPs (NT) description This 8-bit flip-flop features 3-state outputs designed specifically for driving highly-capacitive or relatively low-impedance loads. It is particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers. The eight flip-flops of the 74AC11374 are edge-triggered D-type flip-flops. On the positive transition of the clock, the Q outputs are set to the logic levels set up at the D inputs. The output-enable (OE) input can be used to place the eight outputs in either a normal logic state (high or low logic levels) or a high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines signigicantly. The high-impedance third state provides the capability to drive the bus lines in a bus-organized system without need for interface or pullup components. OE does not affect the internal operation of the flip-flops. Old data can be retained or new data can be entered while the outputs are in the high-impedance state. The 74AC11374 is characterized for operation from –40 °C to 85°C. FUNCTION TABLE (each flip-flop) INPUTS OUTPUT OE CLK D Q L ↑ H H L ↑ LL L LX Q0 L HX Q0 L ↓ XQ0 H X X Z 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 9 10 11 12 1Q 2Q 3Q 4Q GND GND GND GND 5Q 6Q 7Q 8Q OE 1D 2D 3D 4D VCC VCC 5D 6D 7D 8D CLK DB, DW, OR NT PACKAGE (TOP VIEW) 24 23 22 21 20 19 18 17 16 15 14 13 |
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