PI3C3125 2.5V/3.3V, High Bandwidth, Hot Insertion,4-Bit, 2-Port Bus Switch with Individual Enables Description Features Pericom Semiconductor s PI3C3125 IS A 2.5 volt or 3.3 volt, Near-Zero propagation delay 4-bit bus switch designed with four individual 5-ohm bus switches 5-ohm switches connect inputs to outputs with fast individual enables in an industry standard 74XX125/126 High Bandwidth (>400 MHz) pinout. When enabled via the associated Bus Enable pin, the A 2.5V/3.3V Supply Voltage Operation pin is directly connected to the B pin for that particular gate. The bus switch introduces no additional propagation delay or Rail-to-Rail, or 2.5V or 3.3V Switching additional ground bounce noise. 5V I/O Tolerant The PI3C3125 device has active LOW enables. It is very useful Permits Hot Insertion in switching signals that have high bandwidth (>400 MHz). Packaging (Pb-free & Green available): 14-pin 150-mil wide plastic SOIC (W) 14-pin 170-mil wide plastic TSSOP (L) 16-contact TDFN (ZJ) Applications High Bandwidth Data Switching Hot Docking Block Diagram A0 B0 BE0 B1 A1 BE1 B2 A2 BE2 B3 A3 BE3 PS8344A 07/22/10 11-0003 1PI3C3125 2.5V/3.3V, High Bandwidth, Hot Insertion,4-Bit, 2-Port Bus Switch with Individual Enables Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested.) Note: Storage Temperature ............................................................ 65C to +150C Stresses greater than those listed under MAXIMUM Ambient Temperature with Power Applied ........................... 40C to +85C RATINGS may cause permanent damage to the device. This is a stress rating only and functional Supply Voltage to Ground Potential (Inputs & V Only) ..... 0.5V to +4.6V CC operation of the device at these or any other Supply Voltage to Ground Potential (Outputs & D/O Only) .. 0.5V to +4.6V conditions above those indicated in the operational DC Input Voltage .................................................................... 0.5V to +5.5V sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended DC Output Current ............................................................................... 120mA periods may affect reliability. Power Dissipation ................................................................................... 0.5W 14-Pin Configurations 16-Pin Configurations 1 Vcc NC 16 1 Vcc BE0 14 2 BE3 BE0 15 2 BE3 A0 13 3 A3 A0 14 3 A3 B0 12 4 B3 B0 13 4 B3 BE1 11 16-PIN 14-PIN 5 BE2 BE1 12 5 BE2 A1 10 6 A2 A1 11 6 A2 B1 9 7 B2 B1 10 7 B2 GND 8 8 NC GND 9 (1) Pin Description Truth Table Pin Name Description BEn An Bn V Function CC BEn Switch Enable A3 - A0 Bus A X* Hi-Z Hi-Z GND Disconnect B3 - B0 Bus B H Hi-Z Hi-Z V Disconnect CC L Bn An V Disconnect V Power CC CC Note: GND Ground 1. H = High Voltage Level, L = Low Voltage Level HI-Z = High Impedance, X = Dont Care * A pull-up resistor should be provided for power-up protection. PS8344A 07/22/10 11-0003 2