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SNJ54LS165AJ Datasheet(PDF) 1 Page - Texas Instruments |
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SNJ54LS165AJ Datasheet(HTML) 1 Page - Texas Instruments |
1 / 16 page SN54165, SN54LS165A, SN74165, SN74LS165A PARALLEL-LOAD 8-BIT SHIFT REGISTERS SDLS062D – OCTOBER 1976 – REVISED FEBRUARY 2002 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Complementary Outputs D Direct Overriding Load (Data) Inputs D Gated Clock Inputs D Parallel-to-Serial Data Conversion TYPE TYPICAL MAXIMUM CLOCK FREQUENCY TYPICAL POWER DISSIPATION ’165 26 MHz 210 mW ’LS165A 35 MHz 90 mW description The ’165 and ’LS165A are 8-bit serial shift registers that shift the data in the direction of QA toward QH when clocked. Parallel-in access to each stage is made available by eight individual, direct data inputs that are enabled by a low level at the shift/load (SH/LD) input. These registers also feature gated clock (CLK) inputs and complementary outputs from the eighth bit. All inputs are diode-clamped to minimize transmission-line effects, thereby simplifying system design. Clocking is accomplished through a two-input positive-NOR gate, permitting one input to be used as a clock-inhibit function. Holding either of the clock inputs high inhibits clocking, and holding either clock input low with SH/LD high enables the other clock input. Clock inhibit (CLK INH) should be changed to the high level only while CLK is high. Parallel loading is inhibited as long as SH/LD is high. Data at the parallel inputs are loaded directly into the register while SH/LD is low, independently of the levels of CLK, CLK INH, or serial (SER) inputs. The SN54165 and SN74165 devices are obsolete and are no longer supplied. Copyright 2002, Texas Instruments Incorporated 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. SN54165, SN54LS165A ...J OR W PACKAGE SN74165 ...N PACKAGE SN74LS165A . . . D, N, OR NS PACKAGE (TOP VIEW) 32 1 20 19 910 11 12 13 4 5 6 7 8 18 17 16 15 14 D C NC B A E F NC G H SN54LS165A . . . FK PACKAGE (TOP VIEW) 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 SH/LD CLK E F G H QH GND VCC CLK INH D C B A SER QH NC – No internal connection 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. On products compliant to MIL-PRF-38535, all parameters are tested unless otherwise noted. On all other products, production processing does not necessarily include testing of all parameters. |
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