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SN74HCT273N データシート(PDF) 1 Page - Texas Instruments |
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SN74HCT273N データシート(HTML) 1 Page - Texas Instruments |
1 / 16 page SN54HCT273, SN74HCT273 OCTAL DTYPE FLIPFLOPS WITH CLEAR SCLS068E − NOVEMBER 1988 − REVISED AUGUST 2003 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Operating Voltage Range of 4.5 V to 5.5 V D Outputs Can Drive Up To 10 LSTTL Loads D Low Power Consumption, 80-µA Max ICC D Typical tpd = 12 ns D ±4-mA Output Drive at 5 V D Low Input Current of 1 µA Max D Inputs Are TTL-Voltage Compatible D Contain Eight D-Type Flip-Flops D Direct Clear Input D Applications Include: − Buffer/Storage Registers − Shift Registers − Pattern Generators 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 CLR 1Q 1D 2D 2Q 3Q 3D 4D 4Q GND VCC 8Q 8D 7D 7Q 6Q 6D 5D 5Q CLK SN54HCT273 ...J OR W PACKAGE SN74HCT273 . . . DB, DW, N, NS, OR PW PACKAGE (TOP VIEW) 3 2120 19 910 11 12 13 4 5 6 7 8 18 17 16 15 14 8D 7D 7Q 6Q 6D 2D 2Q 3Q 3D 4D SN54HCT273 . . . FK PACKAGE (TOP VIEW) description/ordering information These devices are positive-edge-triggered D-type flip-flops with a common enable input. The ’HCT273 devices are similar to the ’HCT377 devices, but feature a common clear enable (CLR) input instead of a latched clock. Information at the data (D) inputs meeting the setup time requirements is transferred to the Q outputs on the positive-going edge of the clock (CLK) pulse. Clock triggering occurs at a particular voltage level and is not directly related to the positive-going pulse. When CLK is at either the high or low level, the D input has no effect at the output. The circuits are designed to prevent false clocking by transitions at CLR. ORDERING INFORMATION TA PACKAGE† ORDERABLE PART NUMBER TOP-SIDE MARKING PDIP − N Tube of 20 SN74HCT273N SN74HCT273N SOIC − DW Tube of 25 SN74HCT273DW HCT273 SOIC − DW Reel of 2000 SN74HCT273DWR HCT273 −40 °C to 85°C SOP − NS Reel of 2000 SN74HCT273NSR HCT273 −40 °C to 85°C SSOP − DB Reel of 2000 SN74HCT273DBR HT273 Tube of 70 SN74HCT273PW TSSOP − PW Reel of 2000 SN74HCT273PWR HT273 TSSOP − PW Reel of 250 SN74HCT273PWT HT273 CDIP − J Tube of 20 SNJ54HCT273J SNJ54HCT273J −55 °C to 125°C CFP − W Tube of 85 SNJ54HCT273W SNJ54HCT273W −55 C to 125 C LCCC − FK Tube of 55 SNJ54HCT273FK SNJ54HCT273FK † Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. Copyright 2003, 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. 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. |
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同様の説明 - SN74HCT273N |
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