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SN74ABT377DWR Scheda tecnica(PDF) 1 Page - Texas Instruments |
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SN74ABT377DWR Scheda tecnica(HTML) 1 Page - Texas Instruments |
1 / 14 page SN54ABT377, SN74ABT377 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH CLOCK ENABLE SCBS156B – FEBRUARY 1991 – REVISED JULY 1994 Copyright © 1994, Texas Instruments Incorporated 2–1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 • State-of-the-Art EPIC-ΙΙB™ BiCMOS Design Significantly Reduces Power Dissipation • Latch-Up Performance Exceeds 500 mA Per JEDEC Standard JESD-17 • Typical V OLP (Output Ground Bounce) < 1 V at VCC = 5 V, TA = 25°C • High-Drive Outputs (–32-mA I OH, 64-mA IOL) • Package Options Include Plastic Small-Outline (DW) and Shrink Small-Outline (DB) Packages, Ceramic Chip Carriers (FK), and Plastic (N) and Ceramic (J) DIPs description The ′ABT377 are 8-bit positive-edge-triggered D-type flip-flops with a clock (CLK) input. They are particularly suitable for implementing buffer and storage registers, shift registers, and pattern generators. Data (D) input information that meets the setup time requirements is transferred to the Q outputs on the positive-going edge of the clock pulse if the common clock-enable (CLKEN) input is low. Clock triggering occurs at a particular voltage level and is not directly related to the transition time of the positive-going pulse. When the buffered clock (CLK) input is at either the high or low level, the D input signal has no effect at the output. The circuits are designed to prevent false clocking by transitions at CLKEN. The SN74ABT377 is available in TI’s shrink small-outline package (DB), which provides the same I/O pin count and functionality of standard small-outline packages in less than half the printed-circuit-board area. The SN54ABT377 is characterized for operation over the full military temperature range of – 55 °C to 125°C. The SN74ABT377 is characterized for operation from – 40 °C to 85°C. FUNCTION TABLE (each flip-flop) INPUTS OUTPUT CLKEN CLK D Q H X X Q0 L ↑ HH L ↑ LL X H or L X Q0 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 CLKEN 1Q 1D 2D 2Q 3Q 3D 4D 4Q GND VCC 8Q 8D 7D 7Q 6Q 6D 5D 5Q CLK SN54ABT377 ...J PACKAGE SN74ABT377 ... DB, DW, OR N PACKAGE (TOP VIEW) 32 1 20 19 9 10 11 12 13 4 5 6 7 8 18 17 16 15 14 2D 2Q 3Q 3D 4D SN54ABT377 . . . FK PACKAGE (TOP VIEW) 8D 7D 7Q 6Q 6D EPIC- ΙΙB is a trademark of 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. |
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