PI3B32X245 3.3V, Hot Insertion 16-Bit, 2-Port Bus Switch Product Features Product Description Fast Switching Speed: 4.5ns max. The PI3B32X245 is a 3.3V,16-bit, 2-port bus switch. Two enable signals (BEn) turn the switches on. The bus switch creates no Permits Hot Insertion additional propagational delay or additional ground bounce noise. Near-zero propagation delay 5 switches connect inputs to outputs Direct bus connection when switches are ON Ultra-low quiescent power (1.0 A typical) Ideally suited for notebook applications Product Pin Configuration Industrial operating temperature: 40C to +85C TTL - compatible control of input levels Packages (Pb-free & Green available): VCC NC 1 40 40-pin, 150-mil wide plastic BQSOP (B) BE 2 39 A 1 0 38 A 3 B 1 0 37 4 B A 1 2 Logic Block Diagram 5 36 B A 2 3 6 35 A B 4 3 B0 A0 A B 7 34 5 4 B A 33 8 5 6 32 B A 9 6 7 40-Pin A7 B4 31 GND 10 B 7 B 30 GND NC 11 29 NC A 12 8 A 28 B 13 BE1 9 8 27 B A 14 9 10 26 15 B A 10 11 B8 A8 25 A 16 B 12 11 A 24 B 17 13 12 B A 23 18 13 14 A15 B15 B A 22 19 14 15 B 21 GND 20 15 BE2 (1) Truth Table Product Pin Description Function BEn A015 Pin Name I/O Description Disconnect H Hi-Z BEn I Bus Enable Input (Active LOW) A0-A15 I/O Bus A Connect L B015 B0-B15 I/O Bus B Notes: 1. H= High Voltage Level L = Low Voltage Level Hi-Z = High Impedance PS8337E 11/17/06 07-0011 1PI3B32X245 3.3V, Hot Insertion 16-Bit, 2-Port Bus Switch 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 de- Supply Voltage to Ground Potential (Inputs & V Only) . 0.5V to +4.6V CC vice. This is a stress rating only and functional opera- tion of the device at these or any other conditions Supply Voltage to Ground Potential (Outputs & D/O Only)0.5V to +4.6V above those indicated in the operational sections of DC Input Voltage ................................................................. 0.5V to +7.0V this specification is not implied. Exposure to absolute DC Output Current ........................................................................... 120mA maximum rating conditions for extended periods may affect reliability. Power Dissipation ................................................................................ 0.5W DC Electrical Characteristics (Over the Operating Range, T = 40C to +85C, V = 3.3V 10%) A CC (1) (2) PnarametersDsescriptio Test Condition M.in. TypMsax. Unit VIlnput HIGH VoltageG0uaranteed Logic HIGH Leve 2. IH V VIlnput LOW VoltageG5uaranteed Logic LOW Leve 80. 0. IL IIVnput HIGH Current = Max., V = V IH CC IN CC IIVnput LOW Current = Max., V = GND A1 IL CC IN IH0igh Impedence Output Current A, B V OZH CC VCVlamp Diode Voltage = Min., I =128mA V1. IK CC NN V = Min., V = 0.0V, I=548mA or 64mA 8 CC IN ON (3) R Switch On Resistance ON V = Min., V = 2.4V, I=015mA 171 CC IN ON Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at V = 3.3V, T = 25C ambient and maximum loading. CC A 3. Measured by the voltage drop between A and B pin at indicated current through the switch. ON resistance is determined by the lower of the voltages on the two (A,B) pins. Capacitance (T = 25C, f = 1 MHz) A (1) Parameters Description Test Conditions Typ. Units C Input Capacitance V = 0V 3.5 pF IN IN C A/B Capacitance, Switch Off V = 0V 8.0 pF OFF IN C A/B Capacitance, Switch On V = 0V 16.0 pF ON IN Notes: 1. This parameter is determined by device characterization but is not production tested. PS8337E 11/17/06 07-0011 2