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Product Detailed Parameters
- Description：54LS74 - DUAL FLIP-FLOP, POSITIV
- Series：54LS
- Mfr：Texas Instruments
- Package：Bulk
- Function：Set(Preset) and Reset
- Type：D-Type
- Output Type：Complementary
- Number of Elements：2
- Number of Bits per Element：1
- Clock Frequency：33 MHz
- Max Propagation Delay @ V, Max CL：40ns @ 5V, 15pF
- Trigger Type：Positive Edge
- Current - Output High, Low：400µA, 4mA
- Voltage - Supply：4.5V ~ 5.5V
- Current - Quiescent (Iq)：8 mA
- Operating Temperature：-55°C ~ 125°C (TA)
- Mounting Type：Through Hole
- Supplier Device Package：14-CDIP
- Package / Case：14-CDIP (0.300", 7.62mm)
- Input Capacitance：-
- Grade：Military
- Qualification：MIL-PRF-38535L
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Overview
JM38510/30102SCA is a military-grade dual D-type positive-edge-triggered flip-flop with preset and clear functions, manufactured by Texas Instruments. It operates within a supply voltage range of 2 V to 6 V and supports an extended temperature range from -55 °C to 125 °C. The device features a 14-pin ceramic flatpack (CFP) package with dimensions of 9.21 mm in length. It includes internal logic for data storage and control, ensuring reliable performance in harsh environments.
Feature Summary
- Dual D-type positive-edge-triggered flip-flops with dedicated preset and clear inputs
- Military qualification under MIL-PRF-38535 Class S standards
- Ceramic glass-sealed flatpack construction for environmental durability
Applications
- High-reliability digital data storage systems
- Military aerospace control circuits
- Harsh environment signal processing interfaces
Procurement Notes
Verify the specific suffix 'SCA' against the official Texas Instruments datasheet to confirm pinout and electrical characteristics match requirements. Ensure procurement channels provide traceable documentation confirming MIL-PRF-38535 Class S compliance. Request batch-specific test reports if required for mission-critical validation. Confirm package integrity upon receipt.
Selection Notes
Select this component when dual edge-triggered storage with independent control signals is required in extreme thermal conditions. The ceramic flatpack offers superior hermetic sealing compared to plastic packages. Consider the 2 V to 6 V operating range for compatibility with various logic families. Evaluate space constraints due to the 14-pin CFP footprint.
Part Context
This part belongs to the JM38510 series, representing high-reliability integrated circuits designed for military and aerospace applications. Texas Instruments produces these components to meet stringent quality and performance standards. The series ensures long-term stability and radiation hardness suitable for defense electronics.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Verify cross-reference availability through official manufacturer channels before substitution.
