PI5C3245 8-Bit, 2-Port Bus Switch Features Description Near-Zero propagation delay Pericom Semiconductors PI5C3245 is a 8-bit, 2-port bus switch designed with a low On-Resistance (5-ohm) allowing inputs to 5-ohm switches connect inputs to outputs be connected directly to outputs. e Th bus switch creates no ad- Direct bus connection when switches are on ditional propagational delay or additional ground bounce noise. Ultra Low Quiescent Power (0.2A typical) e Th switches are turned on by the Bus Enable (BE) input signal. e Th pinout is compatible with PI74FCT245T (Octal Bidirectional Ideally suited for notebook applications Transceiver). Pin compatible with 74 Series 245 logic devices Packaging (Pb-free & Green): 20-pin 173-mil wide plastic TSSOP (L) 20-pin 150-mil wide plastic QSOP (Q) Block Diagram Pin Configuration 1 VCC 20 NC 2 A0 19 BE A0 B0 3 18 A1 B0 B1 4 17 A2 A7 B7 5 B2 A3 16 6 B3 15 A4 7 14 B4 A5 8 13 B5 A6 BE 9 B6 A7 12 10 B7 GND 11 (1) Truth Table Pin Description Function BE A0-7 Pin Name Description Disconnect H Hi-Z BE Bus Enable Input (Active LOW) Connect L B0-7 A0-7 Bus A Note: 1. H = High Voltage Level B0-7 Bus B L = Low Voltage Level Hi-Z = High Impedance GND Ground Power V CC All trademarks are property of their respective owners. www.pericom.com PS7015F 10/12/10 11-0008 1PI5C3245 8-Bit, 2-Port Bus Switch Absolute Maximum Ratings Parameter Min. Max. Units o Storage Temperature -65 150 C o Ambient Temperature with Power Applied -40 85 C Supply Voltage to Ground Potential (Inputs & Vcc Only) -0.5 7.0 V Supply Voltage to Ground Potential (Outputs & D/O Only) -0.5 7.0 V DC Input Voltage -0.5 7.0 V DC Output Current - 120 mA Power Dissipation - 0.5 W Stress beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. DC Electrical Characteristics (Over the Operating Range, T = 40C to +85C, V = 5V 5%) A CC (1) (2) Parameters Description Test Conditions Min Typ Max Units V Input HIGH Voltage Guaranteed Logic HIGH Level 2.0 V IH V Input LOW Voltage Guaranteed Logic LOW Level -0.5 0.8 V IL I Input HIGH Current V = Max., V = V 1 A IH CC IN CC I Input LOW Current V = Max., V = GND 1 A IL CC IN I High Impedance Output Current 0 A, B V 1 A OZH CC Clamp Diode Voltage -0.7 -1.2 V V V = Min, I = -18mA IK CC IN (3) Short Circuit Current 100 mA I A (B) = 0V, B (A) = V OS CC Input Hysteresis at Control Pins 150 mV V H 5 7 V = Min, V = 0.0V, I = 48 mA CC IN ON (4) Switch On Resistance R ON 10 15 V = Min, V = 2.4V, I = 15 mA 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 = 5.0V, T = 25C ambient and maximum loading. CC A 3. Not more than one output should be shorted at one time. Duration of the test should not exceed one second. 4. 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 Input Capacitance 6 pF C V = 0V IN IN A/B Capacitance, Switch Off 6 pF C V = 0V OFF IN A/B Capacitance, Switch On 8 pF C V = 0V ON IN Notes: 1. This parameter is determined by device characterization but is not production tested. All trademarks are property of their respective owners. www.pericom.com PS7015F 10/12/10 11-0008 2