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SN74AHC541NS
SN54AHC541, SN74AHC541 OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS SCLS261J – DECEMBER 1995 – REVISED NOVEMBER 1999 D D D D EPIC ™ (Enhanced-Performance Implanted CMOS) Process Operating Range 2-V to 5.5-V VCC Latch-Up Performance Exceeds 250 mA Per JESD 17 Package Options Include Plastic Small-Outline (DW), Shrink Small-Outline (DB), Thin Very Small-Outline (DGV), Thin Shrink Small-Outline (PW), and Ceramic Flat (W) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) DIPs SN54AHC541 . . . J OR W PACKAGE SN74AHC541 . . . DB, DGV, DW, N, OR PW PACKAGE (TOP VIEW) OE1 A1 A2 A3 A4 A5 A6 A7 A8 GND 1 20 2 19 3 18 4 17 5 16 6 15 7 14 8 13 9 12 10 11 VCC OE2 Y1 Y2 Y3 Y4 Y5 Y6 Y7 Y8 description The ’AHC541 octal buffers/drivers are ideal for driving bus lines or buffer memory address registers. These devices feature inputs and outputs on opposite sides of the package to facilitate printed circuit board layout. A3 A4 A5 A6 A7 4 3 2 1 20 19 18 5 17 6 16 7 15 8 14 9 10 11 12 13 Y1 Y2 Y3 Y4 Y5 A8 GND Y8 Y7 Y6 The 3-state control gate is a two-input AND gate with active-low inputs so that if either output-enable (OE1 or OE2) input is high, all corresponding outputs are in the high-impedance state. The outputs provide noninverted data when they are not in the high-impedance state. OE2 A2 A1 OE1 VCC SN54AHC541 . . . FK PACKAGE (TOP VIEW) To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. The SN54AHC541 is characterized for operation over the full military temperature range of –55°C to 125°C. The SN74AHC541 is characterized for operation from –40°C to 85°C. FUNCTION TABLE (each buffer/driver) INPUTS OE1 OE2 A OUTPUT Y L L L L H L L H H X X Z X H X Z 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. EPIC is a trademark of Texas Instruments Incorporated. Copyright © 1999, Texas Instruments Incorporated 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. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1
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