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Product Detailed Parameters
- Description：54LS74A DUAL D-TYPE POSITIVE-EDG
- 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 JM38510/30102BDA is a dual D-type positive-edge-triggered flip-flop manufactured by Texas Instruments. It features integrated preset and clear inputs for direct control of output states. The device is housed in a 14-lead ceramic flatpack (DFP) package designed for high-reliability applications. It operates within an extended temperature range from -55 °C to 125 °C. The component belongs to the LS logic series, supporting a maximum operating frequency of 25 MHz at nominal supply voltage. It includes two independent functional units with a load capacitance specification of 15 pF.
Feature Summary
- Dual D-type positive-edge-triggered flip-flops with dedicated preset and clear inputs
- Ceramic flatpack construction for enhanced environmental stability
- Extended industrial temperature rating suitable for harsh conditions
Applications
- Military and aerospace digital storage systems
- High-reliability data processing circuits
- Harsh environment control logic modules
Procurement Notes
Verify that the ordering suffix matches the specific package and temperature grade requirements. Confirm compliance with MIL-PRF-38535 Class B standards if applicable. Ensure the supplier provides traceable documentation for the ceramic flatpack integrity. Check for RoHS exemptions or specific military qualification certificates required for the intended deployment environment.
Selection Notes
Select this component when dual edge-triggered storage with direct set/reset capability is required in a hermetic package. The LS series offers a balance of speed and power consumption. Consider the 14-lead flatpack form factor for board space constraints requiring ceramic sealing. Verify that the 25 MHz frequency limit meets the system clock requirements.
Part Context
This part is part of the Texas Instruments JM38510 family, which adheres to military specifications for high-reliability integrated circuits. The JM38510/30102 designation specifically identifies the dual D-flip-flop variant within the LS logic line. These components are engineered for long-term stability and performance consistency in defense and aerospace sectors.
Replacement Considerations
Direct replacements must match the JM38510/30102BDA pinout and function. Equivalent parts include other manufacturers' military-grade dual D-flip-flops in 14-lead CFP packages. Verify that substitute devices meet the same -55 to 125 °C temperature range and LS series electrical characteristics.
