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Product Detailed Parameters
- Description：BUS DRIVER, AS SERIES
- Series：*
- Mfr：Texas Instruments
- Package：Bulk
- Logic Type：-
- Number of Elements：-
- Number of Bits per Element：-
- Input Type：-
- Output Type：-
- Current - Output High, Low：-
- Voltage - Supply：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The SNJ54AS244J is an octal buffer and line driver featuring three-state outputs, manufactured by Texas Instruments. It belongs to the AS logic series and utilizes bipolar technology. The device is housed in a 20-CDIP package with a pin count of 20. It operates within a supply voltage range of 4.5 V to 5.5 V and supports an operating temperature range from -55°C to +125°C. The component provides unidirectional data flow with active-low enable control.
Feature Summary
- Octal configuration providing eight independent buffer channels
- Three-state output capability for bus-oriented applications
- Military-grade rating suitable for extreme environmental conditions
- Bipolar AS logic family technology for high-speed performance
Applications
- Military aerospace systems requiring wide temperature tolerance
- High-speed bus drivers in defense communication equipment
- Memory address register buffering in ruggedized computing
- Line driving for terminated transmission lines in harsh environments
Procurement Notes
Verify the specific suffix J indicates the ceramic DIP package variant. Confirm military qualification status if required for your application. Check RoHS compliance as older military parts may not meet current environmental standards. Ensure the supplier provides traceability documentation for space or military grade components. Validate the datasheet version matches the production batch.
Selection Notes
Select this part when bipolar speed is required alongside military temperature ranges. Compare propagation delay specifications against HC or HCT alternatives if lower power is needed. Consider the CDIP package constraints for PCB layout versus surface mount options. Verify input/output voltage compatibility with the target system logic levels.
Part Context
This component is part of the SN54/74AS244 family of octal buffers. The SN54 prefix denotes military-grade reliability and extended temperature operation compared to commercial SN74 variants. It serves as a high-performance alternative to standard LS or S series drivers in demanding electronic designs.
Replacement Considerations
SNJ54AS244AJ is a direct equivalent with potential packaging variations. SN54AS244ANSR offers the same functionality in a surface-mount SOIC package. SN54LS244J provides similar octal buffering but with different electrical characteristics and slower speed.
