PI3VT3245Q

PI3VT3245 8-Bit, 2-Port, Low Voltage Translator Bus Switch Features Near-Zero propagation delay Low On-Resistance switches connect inputs to outputs 2.5V to 3.3V Supply voltage operation 2.5V or 1.8V switching Packaging (Pb-free & Green available): – 20-pin, 150-mil wide plastic QSOP (Q) – 20-pin, 173-mil wide plastic TSSOP (L) Description Pericom Semiconductor’s PI3VT series of logic circuits are produced using the Company’s advanced submicron CMOS technology, achieving industry leading performance. The PI3VT3245 is a 2.5V or 3.3V 8-bit, 2-port bus switch designed with a low On-Resistance (5Ω). The switches are turned ON or enabled by the Bus Enable (BE) input signal. 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 with a 2.5V supply and given 2.5V inputs, the device translates the outputs to 1.8V. Applications 3.3V to 2.5V level shifting (voltage translation) 2.5V to 1.8V level shifting (voltage translation) Block Diagram Pin Configuration NC 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 VCC BE B0 B1 B2 B3 B4 B5 B6 B7 A0 B0 A0 A1 A2 A7 B7 A3 A4 A5 BE A6 A7 GND Truth Table(1) Function Disconnect Connect Notes: 1. H = High Voltage Level L = Low Voltage Level Hi-Z = High Impedance BE H L A0-7 Hi-Z B0-7 Pin Description Pin Name BE A0-A7 B0-B7 VCC GND Bus A Bus B Power Ground Description Bus Enable Input (Active Low) 1 PS8530B 08/13/04 PI3VT3245 8-Bit, 2-Port, Lo...