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Product Detailed Parameters
- Description：IC GATE AND/OR INVERTER
- Series：*
- Mfr：Texas Instruments
- Package：Bulk
- Logic Type：-
- Number of Circuits：-
- Number of Inputs：-
- Features：-
- Voltage - Supply：-
- Current - Quiescent (Max)：-
- Current - Output High, Low：-
- Input Logic Level - Low：-
- Input Logic Level - High：-
- Max Propagation Delay @ V, Max CL：-
- Operating Temperature：-
- Mounting Type：-
- Supplier Device Package：-
- Package / Case：-
- Grade：-
- Qualification：-
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Overview
The SN54S51J is a military-grade integrated circuit from Texas Instruments, classified as an AND-OR-INVERT gate within the 54S series. It features a 14-pin ceramic dual in-line package (CDIP) designed for high reliability in harsh environments. The device operates across an extended temperature range of -55°C to +125°C. It implements complex logic functions using standard TTL-compatible inputs and outputs, suitable for aerospace and defense applications requiring robust performance under extreme thermal conditions.
Feature Summary
- Military-grade construction utilizing hermetically sealed ceramic packaging for environmental protection
- Extended operational temperature range supporting -55°C to +125°C functionality
- Standard TTL logic interface compatibility for direct integration with existing digital systems
Applications
- Aerospace avionics control systems
- Defense communication equipment
- Harsh environment industrial logic processing
Procurement Notes
Verify the specific suffix 'J' confirms the ceramic DIP package and military grade rating. Confirm the manufacturer source is authorized due to the component's age and potential availability through surplus channels. Ensure compliance with export control classifications such as EAR99 if applicable to your jurisdiction. Request full datasheet documentation to validate pinout and electrical characteristics against current design requirements.
Selection Notes
Select this component when military reliability and wide temperature tolerance are mandatory. The SN54S51J provides AND-OR-INVERT logic functionality distinct from standard commercial LS or HC series parts. Consider the physical size and mounting requirements of the 14-CDIP package during PCB layout. Verify that the input voltage levels match the system's logic standards before integration.
Part Context
This part belongs to the Texas Instruments 54S series, which represents Schottky TTL technology known for improved speed over standard TTL. The '54' prefix indicates military qualification, while 'S' denotes the Schottky variant. The 'J' suffix specifies the ceramic dual in-line package. This series was widely used in critical systems before the prevalence of modern CMOS technologies.
Replacement Considerations
Direct replacements may be limited due to the military ceramic package specification. Check for SN54LS51J or SN54LS51K if lower power consumption is acceptable and temperature ranges align. Verify pin-to-pin compatibility and logic function equivalence before substitution.
