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Product Detailed Parameters
- Description：SN54ALS109A DUAL J-K POSITIVE-ED
- 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：-
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- Input Capacitance：-
- Grade：-
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Overview
The Texas Instruments 84000012A is a dual J-K positive-edge-triggered flip-flop element designed for military-grade applications. It features integrated clear and preset functions to control output states independently of the clock signal. The component operates within a specified voltage range and supports high-speed digital logic operations. Packaged in a 20-pin ceramic leadless chip carrier (CLLCC), it ensures reliable performance in harsh environments. This device is suitable for complex sequential logic circuits requiring robust timing control and stable data storage capabilities.
Feature Summary
- Dual J-K configuration with positive-edge triggering mechanism
- Integrated asynchronous clear and preset control inputs
- Military temperature grade certification for extreme environment reliability
- Ceramic leadless chip carrier package for enhanced thermal stability
Applications
- Military-grade sequential logic circuit design
- High-reliability data storage systems
- Avionics timing control modules
- Spacecraft digital processing units
Procurement Notes
Verify the specific ordering suffix against the official Texas Instruments datasheet to ensure correct package type and temperature rating. Confirm that the part number matches the exact military specification requirements. Check for any recent updates to the component's lifecycle status or recommended replacement alternatives before finalizing procurement orders.
Selection Notes
Select this component when military-grade reliability and precise timing control are required. Ensure the system design accommodates the 20-pin CLLCC package dimensions and thermal characteristics. Verify that the power supply voltage aligns with the device's operational limits. Consider the positive-edge triggering behavior for synchronization with system clock signals.
Part Context
This part belongs to the SN54ALS series of logic devices, known for advanced low-power Schottky technology. The SN54 designation indicates military qualification, distinguishing it from commercial SN74 variants. It provides enhanced noise immunity and faster switching speeds compared to standard TTL logic families, making it suitable for demanding aerospace and defense applications.
Replacement Considerations
Consult the official Texas Instruments cross-reference guide for verified substitute part numbers. Ensure any replacement maintains the same military qualification level and package compatibility. Verify functional equivalence regarding pinout and electrical specifications before implementation.
