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Product Detailed Parameters
- Description：DUAL MARKED (M38510/31507BFA)
- 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 SN54LS192/BFA is a synchronous, positive-edge triggered, 4-bit bidirectional decade counter from the LS TTL series. It features separate up and down clock inputs with distinct TCO outputs for each direction. The device operates within a military temperature range of -55°C to 125°C and utilizes a CQCC-20 (LCC-20) ceramic package. Key electrical parameters include a propagation delay of 47 ns, a maximum supply voltage of 5.5 V, and a minimum supply voltage of 4.5 V.
Feature Summary
- Synchronous operation with positive edge triggering
- Bidirectional counting capability with independent clocks
- Military-grade reliability over extended temperature ranges
Applications
- High-reliability digital counting systems
- Military aerospace timing circuits
- Industrial control sequence logic
Procurement Notes
Verify component authenticity through official manufacturer documentation or authorized distribution channels. Confirm that the specific BFA suffix corresponds to the required LCC-20 ceramic package configuration. Ensure compliance with specified military temperature ratings and TTL logic level requirements for the target application environment.
Selection Notes
Select this component when a synchronous, bidirectional decade counter is required for harsh environments. The LS series offers standard TTL compatibility while maintaining low power consumption. Verify that the 4-bit capacity meets the system's counting range needs and that the separate clock inputs align with the design architecture.
Part Context
This part belongs to the SN54LS192 family of synchronous up/down decade counters. It is designed for applications requiring robust performance in extreme conditions. The device provides dedicated carry outputs for cascading multiple counters to achieve higher division ratios or extended counting sequences.
Replacement Considerations
Compatible substitutes include other SN54LS192 variants with equivalent pinouts and specifications. Ensure any replacement maintains the same LCC-20 package form factor and meets the -55°C to 125°C operating temperature range.
