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Product Detailed Parameters
- Description：BUS DRIVER, ALS 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 SN74ALS231N is an octal buffer and line driver manufactured by Texas Instruments, belonging to the Advanced Low-power Schottky (ALS) logic family. It features eight non-inverting buffers with three-state outputs, allowing for high-speed data transmission in bus-oriented systems. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports a low-level output current of 8 mA. Packaged in a standard 20-pin DIP configuration, it is designed for applications requiring efficient signal buffering and isolation.
Feature Summary
- Provides eight non-inverting buffer channels for signal amplification and isolation
- Features three-state outputs to enable direct connection to system buses without external switches
- Utilizes Advanced Low-power Schottky technology for improved speed and reduced power consumption compared to standard TTL
Applications
- Bus-oriented memory and I/O systems
- Clock drivers and timing circuits
- Control lines for data transmission
Procurement Notes
Verify the package type matches the required footprint, as the 'N' suffix typically denotes a 20-pin DIP. Confirm RoHS compliance status, as some listings indicate non-compliance. Ensure the source provides valid datasheets from Texas Instruments or authorized distributors to guarantee authenticity and correct revision levels.
Selection Notes
Select this component when designing systems that require multiple buffered outputs with tri-state capability for bus sharing. Consider the ALS series characteristics for moderate speed requirements with lower power dissipation than standard 74Sxx devices. Verify that the load capacitance and drive current requirements are within the specified limits for reliable operation.
Part Context
This part belongs to the SN74ALS231 family of octal buffers. It serves as a fundamental building block in digital logic design, specifically for managing data flow between components. The ALS series represents a transition toward lower power consumption while maintaining performance, bridging the gap between older TTL standards and newer CMOS technologies.
Replacement Considerations
Compatible substitutes include other octal 3-state buffers from the 74ALS series, such as the SN74ALS244 or SN74ALS245, depending on directionality needs. Cross-reference with SN74F244 for higher speed requirements, though power consumption will differ.
