PI3VT32X245-A 16-Bit, 2-Port, Low Voltage Translator Bus Switch Features Description Near-Zero propagation delay Pericom Semiconductors PI3VT series of logic circuits are pro- duced using the Companys advanced submicron CMOS technol- Low On-Resistance switches connect inputs to outputs ogy, achieving industry leading performance. 2.5V to 3.3V Supply Voltage Operation e PTh I3VT32X245-A, a 2.5V or 3.3V 16-bit 2-port bus switch, 2.5V or 1.8V switching is designed with a low ON resistance (5 ohms). The switches are Packaging (Pb-free & Green available): turned ON or enabled by the Bus Enable (BEn) input signals. 40-pin 150 mil wide BQSOP (B) Given a 3.3V supply and an input voltage of 3.3V, the switch translates to an output voltage of 2.5V. Similarly, when operated Features with a 2.5V supply and given 2.5V inputs, the device translates 3.3V to 2.5V level shifting (voltage translation) the outputs to 1.8V. 2.5V to 1.8V level shifting (voltage translation) Block Diagram Pin Configuration NC 1 V CC 40 A0 2 BE1 39 A1 3 B0 38 A2 4 B1 37 A3 5 B2 36 A0 B0 6 A4 B3 35 7 A5 B4 34 A7 B7 A6 8 B5 33 A7 9 B6 32 BE1 GND 10 B7 31 V NC 11 30 CC A8 B8 12 A8 BE2 29 13 A9 B8 28 A15 B15 14 A10 B9 27 15 A11 B10 26 BE2 A12 16 B11 25 17 A13 B12 24 18 A14 B13 23 19 A15 B14 22 20 GND B15 21 All trademarks are property of their respective owners. www.pericom.com 08/10/12 1 12-0246PI3VT32X245-A 16-Bit, 2-Port, Low Voltage Translator Bus Switch (1) Pin Description Truth Table Pin Name I/O Description Function BE A0 - 15 N I Bus Enable Input (Active LOW) BE Disconnect H Hi-Z N A0 A15 I/O Bus A Connect L B0 15 B0 B15 I/O Bus B Notes: 1. H = High Voltage Level, L = Low Voltage Level, Hi-Z = High Impedance 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 -0.5 4.6 V DC Input Voltage -0.5 5.5 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 = 3.3V 10%) A CC (1) (2) Parameters Description Test Conditions Min Typ Max Units V CC Input HIGH Voltage Guaranteed Logic HIGH Level 1.8 V IH +0.3V V Input LOW Voltage Guaranteed Logic LOW Level -0.5 0.8 V IL V CC Input HIGH Voltage 1.6 V V = 2.5V IH CC +0.3V V Input LOW Voltage -0.5 0.6 V V = 2.5V IL CC Input HIGH Current 1 I V = Max., V = V IH CC IN CC Input LOW Current 1 A I V = Max., V = GND IL CC IN High Impedance Output Current 1 I 0 A, B V OZH CC 5 9 V = Min., V = 0.0V, I = -8mA CC IN ON 18 30 V = Min., V = 1.7V, I = -8mA CC IN ON Switch On Resistance R ON 6 10 V = 2.3V, V = 0.0V, I = 8mA CC IN ON 35 50 V = 2.3V, V = 1.3V, I = 8mA CC IN ON 2.1 2.3 2.7 V = V = 3.3V, I = 5A IN CC OUT Pass Voltage V V P 1.6 V = V = 2.5V, I = 5A IN CC OUT All trademarks are property of their respective owners. www.pericom.com 08/10/12 2 12-0246