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SN74LV244ATPWR
Octal Buffer/Driver With 3-State Outputs
SN74LV244AT OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS www.ti.com SCES572C–JUNE 2004–REVISED AUGUST 2005 FEATURES • Inputs Are TTL-Voltage Compatible • I Supports Partial-Power-Down Mode off Operation • 4.5-V to 5.5-V V Operation CC • Latch-Up Performance Exceeds 250 mA Per • Typical t = 5.4 ns at 5 V pd JESD 17 • Typical V (Output Ground Bounce) OLP • ESD Protection Exceeds JESD 22 <0.8 V at V = 5 V, T = 25°C CC A – 2000-V Human-Body Model (A114-A) • Typical V (Output V Undershoot) OHV OH >2.3 V at V = 5 V, T = 25°C – 200-V Machine Model (A115-A) CC A • Supports Mixed-Mode Voltage Operation on – 1000-V Charged-Device Model (C101) All Ports RGY PACKAGE DB, DGV, DW, NS, OR PW PACKAGE (TOP VIEW) (TOP VIEW) 1OE V 1 20 CC 1A1 2OE 2 19 1 20 2Y4 3 18 1Y1 2 19 1A1 2OE 1A2 4 17 2A4 3 18 2Y4 1Y1 2Y3 5 16 1Y2 4 17 1A2 2A4 1A3 6 15 2A3 2Y3 5 16 1Y2 2Y2 7 14 1Y3 6 15 1A3 2A3 8 13 1A4 2A2 2Y2 7 14 1Y3 9 12 2Y1 1Y4 1A4 8 13 2A2 10 11 GND 2A1 2Y1 9 12 1Y4 10 11 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 (1) T PACKAGE ORDERABLE PART NUMBER TOP-SIDE MARKING A 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, Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. GND 1OE 2A1 V CC
