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Product Detailed Parameters
- Description：BINARY COUNTER, LS SERIES, ASYNC
- 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 54LS293J/B is a 4-bit binary counter manufactured by Rochester Electronics. It operates within the LS logic series and supports through-hole mounting in a DIP-14 package. The device functions as an up-counting binary counter with four bits of capacity. It is characterized for operation over the full military temperature range, ensuring reliability in demanding environments.
Feature Summary
- Contains four independent flip-flops configured for binary counting operations
- Features separate clock inputs for each stage to allow flexible cascading
- Includes a master reset input for initializing the count state
Applications
- Frequency division circuits
- Digital timing sequences
- Event counting systems
Procurement Notes
Verify the specific suffix J/B against the original manufacturer datasheet to confirm pinout and electrical characteristics match your design requirements. Ensure the ceramic DIP-14 package dimensions align with your PCB footprint. Confirm that the military temperature rating meets your operational environment specifications before finalizing procurement.
Selection Notes
Select this component when a robust 4-bit binary counter is required for military or high-reliability applications. The LS series offers a balance of speed and power consumption suitable for general digital logic. Consider the through-hole packaging if surface mount options are not feasible for your assembly process.
Part Context
This part belongs to the SN54LS293 family of 4-bit binary counters. Rochester Electronics provides these components as manufactured parts, often sourced from original suppliers or recreated wafers. They undergo testing to guarantee compliance with original data sheet specifications, maintaining compatibility with legacy military-grade designs.
Replacement Considerations
Direct substitutes include other SN54LS293 variants from different manufacturers. Verify that any replacement maintains the same DIP-14 package and military temperature range. Ensure logical functionality remains identical for seamless integration into existing circuits.
