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74LV244AT Arkusz danych(PDF) 1 Page - Texas Instruments |
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74LV244AT Arkusz danych(HTML) 1 Page - Texas Instruments |
1 / 17 page www.ti.com FEATURES DB, DGV, DW, NS, OR PW PACKAGE (TOP VIEW) RGY PACKAGE (TOP VIEW) 1 20 10 11 2 3 4 5 6 7 8 9 19 18 17 16 15 14 13 12 2OE 1Y1 2A4 1Y2 2A3 1Y3 2A2 1Y4 1A1 2Y4 1A2 2Y3 1A3 2Y2 1A4 2Y1 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 DESCRIPTION/ORDERING INFORMATION SN74LV244AT OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS SCES572C – JUNE 2004 – REVISED AUGUST 2005 • Inputs Are TTL-Voltage Compatible • I off Supports Partial-Power-Down Mode Operation • 4.5-V to 5.5-V V CC Operation • Latch-Up Performance Exceeds 250 mA Per • Typical t pd = 5.4 ns at 5 V JESD 17 • Typical V OLP (Output Ground Bounce) • ESD Protection Exceeds JESD 22 <0.8 V at V CC = 5 V, TA = 25°C – 2000-V Human-Body Model (A114-A) • Typical V OHV (Output VOH Undershoot) >2.3 V at V CC = 5 V, TA = 25°C – 200-V Machine Model (A115-A) • Supports Mixed-Mode Voltage Operation on – 1000-V Charged-Device Model (C101) All Ports This octal buffer/driver is designed specifically to improve both the performance and density of 3-state memory-address drivers, clock drivers, and bus-oriented receivers and transmitters. The SN74LV244AT is organized as two 4-bit buffers/line drivers with separate output-enable (OE) inputs. When OE is low, the device passes 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(1) ORDERABLE PART NUMBER TOP-SIDE MARKING QFN – RGY Reel of 1000 SN74LV244ATRGYR VV244 Tube of 25 SN74LV244ATDW SOIC – DW LV244AT Reel of 2000 SN74LV244ATDWR SOP – NS Reel of 2000 SN74LV244ATNSR 74LV244AT –40 °C to 85°C SSOP – DB Reel of 2000 SN74LV244ATDBR LV244AT Tube of 70 SN74LV244ATPW TSSOP – PW Reel of 2000 SN74LV244ATPWR LV244AT Reel of 250 SN74LV244ATPWT TVSOP – DGV Reel of 2000 SN74LV244ATDGVR LV244AT (1) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. 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. Copyright © 2004–2005, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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