PI74ALVCH32245 Datasheet | Pericom Semiconductor

Features - PI74ALVCH32245 is designed for low voltage operation - VCC = 2.3V to 3.6V - Typical VOLP (Output Ground Bounce) < 0.8V at VCC = 3.3V, TA = 25°C - Typical VOHV (Output VOH Undershoot) .. > 2.0V at VCC = 3.3V, TA = 25°C - Bus Hold retains last active bus state during 3-State, eliminating the need for external pullup resistors - Industrial operation at –40°C to +85°C - Packages available: – 96-ball, 13.5mm x 5.5mm x 1.4mm low profile fine pitch ball grid array, LFBGA (NB) Product Description Peri Semiconductor’s PI74ALVCH series of logic circuits are produced using the pany’s advanced 0.5 micron CMOS technology, achieving industry leading speed grades. The PI74ALVCH32245 is a 32-bit bidirectional transceiver designed for asynchronous two-way munication between data buses. The direction control input pin (x DIR) determines the direction of data flow through the bidirectional transceiver. The Direction and Output Enable controls are designed to operate this device as either four independent 8-bit transceivers, two 16-Bit transceivers, or one 32-Bit transceiver. The output enable (OE) input, when HIGH, disables both A and B ports by placing them in HIGH Z condition. To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pull-up resistor; the minimum value of the resistor is determined by the current sinking ability of the driver. Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level. Logic Block Diagram (Positive Logic) 1DIR A3 A4 1OE 1A1 A5 A2 1B1 2A1 E5 E2 2B1 2DIR H3 H4 2OE To Seven Other Channels To Seven Other Channels 3DIR J3 J4 3OE 3A1 J5 J2 3B1 4DIR T3 T4 4OE 4A1 N5 N2 4B1 To Seven Other Channels To Seven Other Channels PS8437 08/24/01 PI74ALVCH32245 3.3V, 32-Bit Bidirectional Tranceiver with 3-State Outputs 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012...