74ACT16540

54ACT16540, 74ACT16540 16-BIT BUFFERS/DRIVERS WITH 3-STATE OUTPUTS SCAS186A – OCTOBER 1991 – REVISED APRIL 1996 D Members of the Texas Instruments Widebus™ Family D Inputs Are TTL-Voltage Compatible D Provide Extra Data Width Necessary for Wider Address/Data Paths D Provide Inverted Data D 3-State Outputs Drive Bus Lines or Buffer Memory Address Registers D Flow-Through Architecture Optimizes PCB Layout D Distributed VCC and GND Pin Configuration Minimizes High-Speed Switching Noise D EPIC™ (Enhanced-Performance Implanted CMOS) 1-µm Process D 500-mA Typical Latch-Up Immunity at 125°C D Package Options Include Shrink Small-Outline 300-mil (DL) Package Using 25-mil Center-to-Center Pin Spacings and 380-mil Fine-Pitch Ceramic Flat (WD) Packages Using 25-mil Center-to-Center Pin Spacings description These 16-bit buffers/bus drivers provide a high-performance bus interface for wide data paths. 54ACT16540 . . . WD PACKAGE 74ACT16540 . . . 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 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. The ...