UT54BS32245

Standard Products UT54BS32245 32bit Bus Switch Preliminary Datasheet May 2015 www.aeroflex.com/busswitch FEATURES □ Provides cold-sparing capability without the need for actual cold-sparing multiplexer inputs □ Bidirectional Operation □ 3.3 V operating power supply with typical 11Ω switch connection between ports □ 5.0V operating power supply typical 5Ω switch connection between ports □ Isolates non cold-spared devices from an active bus □ Ultra low power CMOS technology □ ESD Rating HBM: 2000V, Class 2 □ Operational environment: - Total-dose: up to 300 krad(Si) - Latchup immune (LET <= 100 MeV-cm2/mg) □ Packaging options: - 99-lead CCGA, CLGA, CBGA □ Standard Microcircuit Drawing (SMD) - QML Q and V pending INTRODUCTION The UT54BS32245 provides 32 bits of high-speed CMOScompatible bus switching. The low on-state resistance of the switch allows connections to be made with minimal propagation delay. The device is organized as four 8-bit bus switches, two 16-bit bus switches, or one 32-bit bus switch. When output enable (/EN) is low, the switch is on and port A is connected to port B. When /EN is high, the switch is open and the high-impedance state exists between the two ports. APPLICATIONS INFORMATION Memory Interface - Solution for multiple memory devices on a bus Bus Isolation - Ability to electrically isolate a device, or banks of devices, from memory bus or ADC output when not needed - Enables bank switching for redundancy or device failure - Provides cold-sparing capabi...