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Product Detailed Parameters
- Description：54LS74 - DUAL FLIP-FLOP, POSITIV
- Series：*
- Mfr：Texas Instruments
- Package：Bulk
- Function：-
- Type：-
- Output Type：-
- Number of Elements：-
- Number of Bits per Element：-
- Clock Frequency：-
- Max Propagation Delay @ V, Max CL：-
- Trigger Type：-
- Current - Output High, Low：-
- Voltage - Supply：-
- Current - Quiescent (Iq)：-
- Operating Temperature：-
- Mounting Type：-
- Supplier Device Package：-
- Package / Case：-
- Input Capacitance：-
- Grade：-
- Qualification：-
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Overview
The JM38510/30102SDA is a dual D-type positive-edge-triggered flip-flop manufactured by Texas Instruments. It features preset and clear inputs for direct control of output states. The device operates within a military temperature range of -55 °C to 125 °C. It utilizes a 14-lead ceramic flatpack (CFP) package with glass-sealed construction. The logic series is designated as LS, indicating low-power Schottky characteristics. Maximum operating frequency is specified at 25 MHz under nominal supply conditions.
Feature Summary
- Dual configuration providing two independent D-type flip-flops in a single package
- Positive-edge triggering mechanism synchronized with clock signal transitions
- Integrated preset and clear inputs for asynchronous state initialization
- Military-grade reliability with extended temperature operation capabilities
Applications
- High-reliability digital data storage systems
- Military aerospace sequential logic circuits
- Radiation-hardened computing architectures
- Industrial control system memory registers
Procurement Notes
Verify the specific suffix SDA against official Texas Instruments documentation to confirm pinout compatibility and electrical specifications. Ensure the component meets required MIL-STD standards for your application environment. Cross-reference the manufacturer's current lifecycle status to confirm availability for new designs or maintenance replacements.
Selection Notes
Select this component when dual D-type flip-flops are required in a hermetically sealed ceramic package. Consider the LS series speed and power consumption trade-offs relative to other TTL families. Verify that the 14-lead CFP footprint matches the target PCB layout constraints and thermal management requirements.
Part Context
This part belongs to the JM38510 family of hybrid microcircuits produced by Texas Instruments. These components are designed for high-reliability applications requiring strict environmental tolerance. The designation indicates compliance with specific military procurement standards for digital logic integrated circuits.
Replacement Considerations
Public confirmed substitute part numbers include SN54LS74A-SP and M38510/30102BDA. Verify functional equivalence and pin compatibility before substitution.
