54ACT16825

54ACT16825, 74ACT16825 18-BIT BUFFERS/DRIVERS WITH 3-STATE OUTPUTS SCAS155B – JANUARY 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 or Buses With Parity 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 Package Options Include Plastic 300-mil Shrink Small-Outline (DL) Packages Using 25-mil Center-to-Center Pin Spacings and 380-mil Fine-Pitch Ceramic Flat (WD) Packages Using 25-mil Center-to-Center Spacings description The ’ACT16825 18-bit buffers/drivers are designed specifically to improve both the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. The ’ACT16825 can be used as two 9-bit buffers or one 18-bit buffer. They provide true data from A to Y. The 3-state control gate is a 2-input NOR gate; therefore, if either output-enable (OE1 or OE2) input is high, all nine affected outputs are in the high-impedance state. 54ACT16825 . . . DW PACKAGE 74ACT16825 . . . DL PACKAGE (TOP VIEW) 1OE1 1 1Y1 2 1Y2 3 GND 4 1Y3 5 1Y4 6 VCC 7 1Y5 8 1Y6 9 1Y7 10 GND 11 1Y8 12 1Y9 13 GND 14 GND 15 2Y1 16 2Y2 17 GND 18 2Y3 19 2Y4 20 2Y5 21 VCC 22 2Y6 23 2Y7 24 GND 25 2Y8 26 2Y9 27 2OE1 28 56 1OE2 55 1A1 54 1A2 53 GND 52 1A3 51 1A4 50 VCC 49 1A5 48 1A6 47...