54ACT16827

54ACT16827, 74ACT16827 20-BIT BUFFERS/DRIVERS WITH 3-STATE OUTPUTS SCAS163A – JUNE 1990 – REVISED APRIL 1996 D Members of the Texas Instruments Widebus ™ Family D Inputs Are TTL-Voltage Compatible D 3-State Outputs Drive Bus Lines Directly 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 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 Pin Spacings description The ’ACT16827 are noninverting 20-bit buffers composed of two 10-bit sections with separate output-enable signals. For either 10-bit buffer section, the two output-enable (1OE1 and 1OE2 or 2OE1 and 2OE2) inputs must both be low for the corresponding Y outputs to be active. If either output-enable input is high, the outputs of that 10-bit buffer section are in the high-impedance state. The 74ACT16827 is packaged in TI’s shrink small-outline package, which provides twice the I/O pin count and functionality of standard small-outline packages in the same printedcircuit-board area. 54ACT16827 . . . WD PACKAGE 74ACT16827 . . . 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 1Y10 14 2Y1 15 2Y2 16 2Y3 17 GND 18 2Y4 19 2Y5 20 2Y6 21 VCC 22 2...