74LCX32646

Preliminary 74LCX32646 Low Voltage 32-Bit Transceiver/Register with 5V Tolerant Inputs and Outputs (Preliminary) August 2001 Revised August 2001 74LCX32646 Low Voltage 32-Bit Transceiver/Register with 5V Tolerant Inputs and Outputs (Preliminary) General Description The LCX32646 contains thirty-two non-inverting bidirectional registered bus transceivers with 3-STATE outputs, providing multiplexed transmission of data directly from the input bus or from the internal storage registers. Each byte has separate control inputs which can be shorted together for full 32-bit operation.The DIRn inputs determine the direction of data flow through the device. The CPABn and CPBAn inputs load data into the registers on the LOW-toHIGH transition (see Functional Description). The LCX32646 is designed for low voltage (2.5V or 3.3V) VCC applications with capability of interfacing to a 5V signal environment. The LCX32646 is fabricated with an advanced CMOS technology to achieve high speed operation while maintaining CMOS low power dissipation. Features s 5V tolerant inputs and outputs s 2.3V–3.6V VCC specifications provided s 5.2 ns tPD max (VCC = 3.3V), 20 µA ICC max s Power down high impedance inputs and outputs s Supports live insertion/withdrawal (Note 1) s ±24 mA Output Drive (VCC = 3.0V) s Implements patented noise/EMI reduction circuitry s Latch-up performance exceeds 500 mA s ESD performance: Human Body Model > 2000V Machine Model > 200V s Packaged in plastic Fine-Pitch Ball Grid Arr...