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SN74LV244ATPWRG

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仕様・特性

SN74LV244AT OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS www.ti.com SCES572C – JUNE 2004 – REVISED AUGUST 2005 FEATURES • • • • Ioff Supports Partial-Power-Down Mode Operation Latch-Up Performance Exceeds 250 mA Per JESD 17 ESD Protection Exceeds JESD 22 – 2000-V Human-Body Model (A114-A) – 200-V Machine Model (A115-A) – 1000-V Charged-Device Model (C101) RGY PACKAGE (TOP VIEW) 1 20 2 19 18 3 4 5 17 6 7 15 8 9 13 12 10 11 16 14 1 VCC 2OE 1Y1 2A4 1Y2 2A3 1Y3 2A2 1Y4 2A1 1A1 2Y4 1A2 2Y3 1A3 2Y2 1A4 2Y1 20 19 2OE 18 1Y1 17 2A4 2 3 4 6 16 1Y2 15 2A3 7 8 14 1Y3 13 2A2 9 12 1Y4 5 10 11 GND 1OE 1A1 2Y4 1A2 2Y3 1A3 2Y2 1A4 2Y1 GND 1OE DB, DGV, DW, NS, OR PW PACKAGE (TOP VIEW) VCC • Inputs Are TTL-Voltage Compatible 4.5-V to 5.5-V VCC Operation Typical tpd = 5.4 ns at 5 V Typical VOLP (Output Ground Bounce) <0.8 V at VCC = 5 V, TA = 25°C Typical VOHV (Output VOH Undershoot) >2.3 V at VCC = 5 V, TA = 25°C Supports Mixed-Mode Voltage Operation on All Ports 2A1 • • • • DESCRIPTION/ORDERING INFORMATION 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 PACKAGE (1) TA QFN – RGY ORDERABLE PART NUMBER TOP-SIDE MARKING Reel of 1000 SN74LV244ATRGYR Tube of 25 SN74LV244ATDW Reel of 2000 SN74LV244ATDWR SOP – NS Reel of 2000 SN74LV244ATNSR 74LV244AT SSOP – DB Reel of 2000 SN74LV244ATDBR LV244AT Tube of 70 SN74LV244ATPW Reel of 2000 SN74LV244ATPWR Reel of 250 SN74LV244ATPWT Reel of 2000 SN74LV244ATDGVR SOIC – DW –40°C to 85°C TSSOP – PW TVSOP – DGV (1) VV244 LV244AT LV244AT LV244AT 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. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2004–2005, Texas Instruments Incorporated

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