PDF UT54BS32245 Data sheet ( Hoja de datos )

Número de pieza	UT54BS32245
Descripción	32bit Bus Switch
Fabricantes	Aeroflex Circuit Technology
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No Preview Available ! 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 CMOS- compatible 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 capability without the need for actual cold-sparing buffers Redundancy - Allows multiple non cold-spare devices to be present on a bus Supports Analog Applications - In voltage range: 3.0 to 3.6V or 4.5 to 5.5V - Signal isolation: -60dB - Bandwidth (3dB): 500 MHz 1A1 1B1 2A1 2B1 3A1 3B1 4A1 4B1 1A8 /EN1 1B8 2A8 /EN2 2B8 3A8 /EN3 3B8 4A8 /EN4 4B8 Figure 1. UT54BS32245 Block Diagram 36-00-03-000 Ver. 1.0.0 1 Aeroflex Microelectronic Solutions - HiRel 1 page OPERATIONAL ENVIROMENT PARAMETER Total Ionizing Dose (TID) Single Event Latchup (SEL) LIMIT 3.0E5 >100 UNITS rad(Si) MeV-cm2/mg DC CHARACTERISTICS,1 (VDD= 5.0V ± 0.5V, 3.3V ± 0.3V, -55°C < TC < +125°C); Unless otherwise noted, Tc is per the temperature range ordered Symbol Parameter Condition MIN MAX Unit V IH V IL IID IIA IDD IDDQ CI C IO(OFF) C IO(ON) RONL 2,3 High level input voltage Low level input voltage Leakage current digital Leakage current analog Active Supply Current Quiescent Supply Current Input Capacitance (/EN) I/O Capacitance when device OFF I/O Capacitance when device ON Resistance through switch VDD=3.6V, 5.5V VDD=3.0V, 4.5V VDD= MAX; VI = VDD or VSS VDD= MAX; VI = VDD or VSS VDD=3.6V, 5.5V VDD= MAX; IO = 0mA; VI = VDD or VSS VI = VDD or VSS VDD = MAX VO = VDD or VSS VI = VDD/2 /EN = VDD VDD = MAX VO = open VI = VDD/2 /EN = 0V VDD= 4.5V VI = VSS IO = 30mA IO = 15mA 0.7VDD -1 -3 0.3*VDD 1 3 0.5 15 5 5 16 10 13 V V µA µA mA/MHz µA pF pF pF Ω R ON(Flat) 1,2 Switch On Resistance VDD= 3.0V VI = VSS IO = 30mA IO = 15mA VDD=3.0V,4.5V VI = VDD VDD=3.0V VI = VDD/2 IO = -30mA IO = -15mA 10 13 Ω 5Ω 6 10 13 Ω 36-00-03-000 Ver. 1.0.0 5 Aeroflex Microelectronic Solutions - HiRel 5 Page Figure 8. 99 Lead CCGA - 10 - 11 Page

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