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Product Detailed Parameters
- Description：OCTAL D-TYPE FLIP-FLOP WITH CLEA
- Series：54LS
- Mfr：Texas Instruments
- Package：Tube
- Function：Master Reset
- Type：D-Type
- Output Type：Non-Inverted
- Number of Elements：1
- Number of Bits per Element：8
- Clock Frequency：40 MHz
- Max Propagation Delay @ V, Max CL：27ns @ 5V, 15pF
- Trigger Type：Positive Edge
- Current - Output High, Low：400µA, 4mA
- Voltage - Supply：4.5V ~ 5.5V
- Current - Quiescent (Iq)：27 mA
- Operating Temperature：-55°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：20-LCCC (8.89x8.89)
- Package / Case：20-CLCC
- Input Capacitance：-
- Grade：-
- Qualification：-
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Overview
The M38510/32501B2A is an octal D-type flip-flop with a clear input manufactured by Texas Instruments. It operates within a supply voltage range of 4.75V to 5.25V and supports data rates up to 35MHz. The device features eight independent D-type flip-flops, each equipped with a direct clear input. It functions across an extended temperature range from -55°C to 125°C. The component utilizes a 20-pin LCCC package for reliable integration in demanding environments.
Feature Summary
- Octal configuration providing eight independent D-type flip-flops with direct clear inputs for immediate state reset.
Applications
- Military and aerospace digital systems requiring high reliability
- Industrial control applications operating in extreme temperatures
- Data storage and transfer registers in harsh environments
Procurement Notes
Verify the specific suffix (e.g., B2A) against official Texas Instruments documentation to confirm pinout, package type, and qualification standards. Ensure the supplier provides traceability to MIL-PRF-38535 requirements if military grade performance is required. Confirm that the component matches the exact part number specifications before procurement to avoid compatibility issues in critical systems.
Selection Notes
Select this component when an octal D-type flip-flop with a clear function is required for high-reliability applications. Consider the extended temperature range and radiation hardness if operating in space or military contexts. Evaluate the 20-pin LCCC package constraints for PCB layout and ensure the 5V logic level compatibility aligns with the system design requirements.
Part Context
This part belongs to the SN54LS273 series, representing low-power Schottky TTL technology. It is designed for use in monolithic silicon microcircuits intended for defense and aerospace sectors. The component adheres to strict military specifications, ensuring consistent performance and durability under severe operational conditions compared to commercial-grade alternatives.
Replacement Considerations
Check for JM38510/32501B2A as a potential equivalent variant. Verify functional compatibility and package dimensions before substitution. Consult official Texas Instruments documentation for any newer qualified replacements that may offer improved availability or updated manufacturing processes while maintaining identical electrical characteristics.
