PDF UT54BS16245 Data sheet ( Hoja de datos )

Número de pieza	UT54BS16245
Descripción	16bit Bus Switch
Fabricantes	Aeroflex Circuit Technology
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No Preview Available ! Standard Products UT54BS16245 16bit Bus Switch Preliminary Datasheet February 2015 www.aeroflex.com/busswitch FEATURES □ Provides cold-sparing capability without the need for actual cold-sparing multiplexer inputs □ Bidirectional operation □ 3.3V operating lower supply with typical 11Ω switch connection between ports □ 5V operating lower supply with 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: 300 krad(Si) - Latchup immune (LET <= 100 MeV-cm2/mg) □ Packaging: - 48-lead flatpack □ Standard Microcircuit Drawing (SMD) - QML Q and V pending INTRODUCTION The UT54BS16245 provides 16 bits of high-speed CMOS-compatible bus switching in a standard ’16245 device pinout. The low on-state resistance of the switch allows connections to be made with minimal propagation delay. The device is organized as two 8-bit low-impedance switches with separate output-enable (/EN) inputs. When OE is low, the switch is on, and data can flow from the A port to the B port, or vice versa. 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 - llows 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 1A8 /EN1 1B8 2A8 /EN2 2B8 36-00-03-005 Ver. 1.0.0 Figure 1. UT54BS16245 Block Diagram 1 Aeroflex Microelectronic Solutions - HiRel 1 page Symbol RONH 1,2 Parameter Resistance through switch Condition MIN VDD=4.5V VI = VDD IO = -30mA IO = -15mA MAX 10 13 Unit Ω VDD= 3.0V VI = VDD IO = -30mA IO = -15mA 10 13 Ω R ON(Flat) 1,2 Switch On Resistance VDD=3.0V,4.5V IO = -30mA VI = VDD IO = -15mA 5Ω 6 Notes: * For devices procured with a total ionizing dose tolerance guarantee, the post-irradiation performance is guaranteed at 25°C per MIL-STD-883 Method 1019, Condition A up to the maximum TID level procured. 1. Measured by the voltage drop between the A and B terminals at the indicated current through the switch. On-state resistance is determined by the lowest voltage of the two (A or B) terminals. 2. Guaranteed by design. 36-00-03-005 Ver. 1.0.0 5 Aeroflex Microelectronic Solutions - HiRel 5 Page Aeroflex Colorado Springs - Datasheet Definition Advanced Datasheet - Product In Development Preliminary Datasheet - Shipping Prototype Datasheet - Shipping QML & Reduced Hi – Rel This product is controlled for export under the U.S. Department of Commerce (DoC). A license may be required prior to the export of this product from the United States. 36-00-03-005 Ver. 1.0.0 11 Aeroflex Microelectronic Solutions - HiRel 11 Page

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