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SN74HCT244PWRE4 데이터시트(PDF) 1 Page - Texas Instruments |
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SN74HCT244PWRE4 데이터시트(HTML) 1 Page - Texas Instruments |
1 / 23 page SN54HCT244, SN74HCT244 OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS SCLS175D – MARCH 1984 – REVISED AUGUST 2003 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Operating Voltage Range of 4.5 V to 5.5 V D High-Current Outputs Drive Up To 15 LSTTL Loads D Low Power Consumption, 80-µA Max ICC D Typical tpd = 13 ns D ±6-mA Output Drive at 5 V D Low Input Current of 1 µA Max D Inputs Are TTL-Voltage Compatible D 3-State Outputs Drive Bus Lines or Buffer Memory Address Registers description/ordering information These octal buffers and line drivers are designed specifically to improve both the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. The ’HCT244 devices are organized as two 4-bit buffers/drivers with separate output-enable (OE) inputs. When OE is low, the device passes noninverted data from the A inputs to the Y outputs. When OE is high, the outputs are in the high-impedance state. ORDERING INFORMATION TA PACKAGE† ORDERABLE PART NUMBER TOP-SIDE MARKING –40 C to 85 C PDIP – N Tube of 20 SN74HCT244N SN74HCT244N –40 C to 85 C SOIC – DW Tube of 25 SN74HCT244DW HCT244 –40 C to 85 C SOIC – DW Reel of 2000 SN74HCT244DWR HCT244 –40 °C to 85°C SOP – NS Reel of 2000 SN74HCT244NSR HCT244 –40 °C to 85°C SSOP – DB Reel of 2000 SN74HCT244DBR HT244 TSSOP – PW Tube of 70 SN74HCT244PW HT244 TSSOP – PW Reel of 2000 SN74HCT244PWR HT244 Reel of 250 SN74HCT244PWT –55 C to 125 C CDIP – J Tube of 20 SNJ54HCT244J SNJ54HCT244J –55 °C to 125°C CFP – W Tube of 85 SNJ54HCT244W SNJ54HCT244W LCCC – FK Tube of 55 SNJ54HCT244FK SNJ54HCT244FK † Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 1OE 1A1 2Y4 1A2 2Y3 1A3 2Y2 1A4 2Y1 GND VCC 2OE 1Y1 2A4 1Y2 2A3 1Y3 2A2 1Y4 2A1 SN54HCT244 ...J OR W PACKAGE SN74HCT244 . . . DB, DW, N, NS, OR PW PACKAGE (TOP VIEW) 32 1 20 19 910 11 12 13 4 5 6 7 8 18 17 16 15 14 1Y1 2A4 1Y2 2A3 1Y3 1A2 2Y3 1A3 2Y2 1A4 SN54HCT244 . . . FK PACKAGE (TOP VIEW) 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. 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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