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Product Detailed Parameters
- Description：DUAL 2-LINE TO 4-LINE DECODERS/D
- Series：*
- Mfr：Texas Instruments
- Package：Bulk
- Type：-
- Circuit：-
- Independent Circuits：-
- Current - Output High, Low：-
- Voltage Supply Source：-
- Voltage - Supply：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The SN74ALV139AD is a dual 2-line to 4-line decoder/demultiplexer from Texas Instruments, belonging to the ALVC logic family. It operates on a single power supply ranging from 2.3 V to 3.6 V and features three-state outputs with low dynamic power consumption. The device supports surface-mount installation in a 16-pin SOIC package, suitable for applications requiring high-speed data routing and address decoding within low-voltage digital systems.
Feature Summary
- Dual independent 2-to-4 line decoding or demultiplexing functionality
- Three-state outputs allowing direct bus interfacing
- Low dynamic power consumption characteristics
- Wide operating voltage range supporting 2.3 V to 3.6 V supplies
Applications
- Address decoding for memory and I/O mapping
- High-speed data routing in communication equipment
- Demultiplexing control signals in industrial automation
- Power management circuitry in portable devices
Procurement Notes
Verify the specific suffix 'AD' against the manufacturer's current datasheet to confirm package type and tape/reel specifications. Ensure compatibility with the target system's voltage levels and signal integrity requirements before procurement. Cross-reference the component status to confirm active production availability.
Selection Notes
Select this component when designing systems requiring dual decoders within a compact footprint. The ALVC series offers faster switching speeds compared to standard CMOS while maintaining lower power usage than older ALS families. Confirm that the 3.6 V maximum rating aligns with the system's power rail stability.
Part Context
This part belongs to the Texas Instruments SN74ALVC139 family of logic ICs. It serves as a low-voltage successor to earlier 5V decoder standards, enabling integration into modern portable electronics and battery-operated devices where power efficiency and speed are critical design constraints.
Replacement Considerations
SN74LVC139AD: Lower voltage operation (1.65 V–3.6 V). SN74LV139AD: Broader voltage range (2.0 V–3.6 V). Verify pinout and electrical characteristics match the original design requirements.
