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Product Detailed Parameters
- Description：IC GATE NOR
- 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 SN54AS805BJ is a military-grade hex 2-input NOR driver manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and supports an extended temperature range from -55°C to +125°C. The device features eight pins in a 20-lead CDIP package, providing six independent NOR logic functions with three-state outputs. It utilizes Advanced Schottky (AS) bipolar technology to ensure high-speed performance while maintaining low power consumption characteristics suitable for demanding aerospace and defense applications.
Feature Summary
- Provides six independent 2-input NOR logic functions with three-state output capability
- Engineered with Advanced Schottky bipolar technology for high-speed operation
- Qualified for full military temperature range extending from -55°C to +125°C
- Constructed in a hermetically sealed ceramic dual in-line package for reliability
Applications
- Aerospace and defense computing systems requiring radiation-hardened or high-reliability logic
- Military communication equipment interfaces
- Harsh environment data acquisition systems
- Avionics control modules
Procurement Notes
Verify the specific suffix J indicates the ceramic DIP package variant when sourcing. Confirm military qualification status through official manufacturer documentation. Check current availability as limited stock items may apply. Ensure environmental compliance requirements match project specifications before finalizing procurement orders.
Selection Notes
Select this component when six independent NOR gates with tri-state outputs are required in a single package. Consider the AS series speed-power trade-off compared to standard S or ALS families. Verify that the 20-lead CDIP footprint fits the target PCB layout. Ensure the operating voltage aligns with the 4.5 V to 5.5 V specification range.
Part Context
This part belongs to the SN54AS family of advanced Schottky logic devices. It complements other SN54AS components like inverters and drivers within the same military-grade portfolio. The SN54AS series offers faster switching speeds than standard TTL while consuming less power than earlier AS variants. It serves as a critical building block for complex digital logic circuits in high-reliability environments.
Replacement Considerations
Direct substitutes include SN54AS805B or SN54ALS805A if pin compatibility and electrical parameters match. Verify package dimensions and thermal characteristics before substitution. Cross-reference timing diagrams to ensure signal integrity is maintained in the new design.
