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Product Detailed Parameters
- Description：DUAL MARKED (M38510/32003BDA)
- Series：*
- Mfr：Rochester Electronics, LLC
- Package：Bulk
- Logic Type：-
- Direction：-
- Number of Elements：-
- Number of Bits per Element：-
- Reset：-
- Timing：-
- Count Rate：-
- Trigger Type：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Voltage - Supply：-
- Grade：-
- Qualification：-
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Overview
The SN54LS290/BDA is a binary and decimal counter manufactured by Rochester Electronics. It features asynchronous clear and preset functions, allowing for flexible counting configurations including divide-by-two, divide-by-five, and decade operations. The device operates within the military temperature range of -55°C to 125°C and utilizes a ceramic dual in-line package.
Feature Summary
- Supports asynchronous reset and preset operations for immediate state control
- Enables multiple counting modes including binary, decimal, and mixed radix division
- Designed for reliable performance across the full military temperature spectrum
Applications
- Military avionics timing circuits
- Spacecraft telemetry counters
- High-reliability industrial frequency dividers
Procurement Notes
Verify component authenticity through manufacturer documentation. Confirm lot traceability and compliance with MIL-PRF-38535 standards. Ensure storage conditions maintain moisture sensitivity levels appropriate for ceramic packages. Validate testing against original factory specifications prior to integration into critical systems.
Selection Notes
Select this component when military-grade reliability and extended temperature operation are required. Consider the specific pinout compatibility with existing circuit designs. Evaluate power consumption requirements against the LS series characteristics. Verify that the asynchronous control signals align with system timing constraints.
Part Context
Rochester Electronics specializes in sourcing and manufacturing legacy components. This part belongs to the standard 54LS logic family, known for low-power Schottky technology. It serves as a replacement for obsolete original equipment manufacturer parts in defense and aerospace applications requiring long-term availability.
Replacement Considerations
Direct substitutes include other 54LS290 variants from qualified manufacturers. Verify pin compatibility and electrical parameters before substitution. Ensure the replacement meets the same military qualification standards.
