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UT54BS16245

Aeroflex Circuit Technology
Part Number UT54BS16245
Manufacturer Aeroflex Circuit Technology
Description 16bit Bus Switch
Published Sep 23, 2016
Detailed Description Standard Products UT54BS16245 16bit Bus Switch Preliminary Datasheet February 2015 www.aeroflex.com/busswitch FEATURES ...
Datasheet PDF File UT54BS16245 PDF File

UT54BS16245
UT54BS16245

Overview
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 NC 1B5 1B6 VSS 1B7 1B8 VDD 1B4 1B3 VSS 1B2 1B1 2B1 2B2...


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