SN54AHC16540 Datasheet | Texas Instruments

description These 16-bit buffers and bus drivers provide a high-performance bus interface for wide data paths. The 3-state control gate is a 2-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. SN54AHC16540 . . . WD PACKAGE SN74AHC16540 . . . DGG, DGV, OR DL PACKAGE (TOP VIEW) 1OE1 1Y1 1Y2 GND 1Y3 1Y4 VCC 1Y5 1Y6 GND 1Y7 1Y8 2Y1 2Y2 GND 2Y3 2Y4 VCC 2Y5 2Y6 GND 2Y7 2Y8 2OE1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 48 1OE2 47 1A1 46 1A2 45 GND 44 1A3 43 1A4 42 VCC 41 1A5 40 1A6 39 GND 38 1A7 37 1A8 36 2A1 35 2A2 34 GND 33 2A3 32 2A4 31 VCC 30 2A5 29 2A6 28 GND 27 2A7 26 2A8 25 2OE2 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 SN54AHC16540 is characterized for operation over the full military temperature range of - 55°C to 125°C. The SN74AHC16540 is characterized for operation from - 40°C to 85°C. FUNCTION TABLE (each 8-bit buffer/driver) INPUTS OE1 OE2 A OUTPUT Y L LH 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 and Widebus are trademarks of Texas Instruments Incorporated. UNLESS OTHERWISE NOTED this document contains PRODUCTION DATA information 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. - POST OFFICE BOX 655303 DALLAS, TEXAS 75265 Copyright © 2000, Texas Instruments Incorporated 1 SN54AHC16540, SN74AHC16540 16-BIT BUFFERS/DRIVERS WITH 3-STATE OUTPUTS SCLS331F - MARCH 1996 - REVISED JANUARY 2000...