The UT32BS1X833 Matrix-DTM is a 32-Channel, 1:8 Bus Switch that provides bus isolation for up to eight banks of 32 I/O connections. By providing bus isolation, the UT32BS1X833 can significantly reduce the amount of load capacitance seen by a host processor and memory devices. The reduction in both load capacitance and delay time and significantly increase speed and performance compared with a discrete logic or FPGA memory interface solution. Each UT32BS1X833 Matrix-DTM can interface up to eight of the UT8SDMQ64M40, 2.5Gb SDRAM or UT8SDMQ64M49, 3.0Gb SDRAM memories with any Frontgrade LEON processor without the need for additional logic for reduced system cost.

Key Tech Specs
  • Features:

  • 32-Channel, 1:8 Bus Switch

  • +3.3V Single Power Supply

  • RON 5 Ohms Typical

  • Flat RON Characteristics over Channel Voltage

  • 204ps Propagation Delay through Switch

  • Transmission Gate Technology Allows for True Bi-Directional Operation

  • Integrated Pull-Up Resistors on the First 8 Outputs of Each Bank to Ensure Memory Devices Remain in Off State when Channels Deselected

  • Bus Holders Maintain Output States on All Other Outputs when Channels Deselecte3

  • Applications:

  • Microprocessor interfaces that require large amount of memory

  • High-speed applications or systems with large bus capacitance

  • Cost-sensitive applications that require bus isolation without an expensive 

  • Operational Environment:

  • Temperature Range: -55°C to +125°C

  • Total Ionizing Dose: <300 krad (Si)

  • SEL Immune: ≤100 MeV-cm2/mg

  • Physical:

  • 400-Pin CLGA, CBGA, CCGA

  • 1mm Pitch

  • Power:

  • Logic Power 1mW/MHz  

  • Flight Grade:

  • QML-Q, QML-V

  • Export Control Classification Number (ECCN):

  • 9A515.e.2

  • SMD Number:

  • 5962-15243


Defense Logistics Agency

Key Tech Specs

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