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MC74AC139ML1
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Product Detailed Parameters
- Description：DECODER/DRIVER, CMOS, PDSO16
- Series：*
- Mfr：onsemi
- 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 MC74AC139ML1 is a dual 1-of-4 decoder/demultiplexer from the onsemi 74AC logic family. It features two independent decoders, each with two address inputs and four mutually exclusive active-low outputs. The device operates within a supply voltage range of 2 V to 6 V and supports surface-mount installation in a 16-pin TSSOP package. It functions across an industrial temperature range of -40°C to +85°C.
Feature Summary
- Contains two completely independent 1-of-4 decoders or demultiplexers
- Provides active-low mutually exclusive outputs for precise signal selection
- Features TTL-compatible inputs for broad digital interface compatibility
Applications
- Address decoding in microprocessor-based systems
- Data routing and demultiplexing in communication circuits
- Memory chip select generation in embedded designs
Procurement Notes
Verify the specific ML1 suffix against the manufacturer's official datasheet to confirm the TSSOP-16 package configuration. Ensure the component meets RoHS compliance requirements if mandated by your assembly standards. Cross-reference the ordering information directly with onsemi documentation to avoid discrepancies in pinout or electrical specifications.
Selection Notes
Select this component when a dual decoder solution is required within the AC logic family. It offers high-speed performance suitable for modern digital applications. Consider the TSSOP package for space-constrained PCB layouts. Verify that the 2V to 6V operating range aligns with the target system power supply.
Part Context
This part belongs to the 74AC series of CMOS logic devices, known for high speed and low power consumption. The 74AC139 specifically provides dual decoding functionality. It serves as a standard component for managing multiple peripheral selections in complex digital architectures requiring reliable signal isolation.
Replacement Considerations
Compatible alternatives include the MC74AC139DR2G (SOIC-16) and the 74AC139MTCX (TSSOP-16). These parts share identical logical functionality but may differ in physical package dimensions or reel packaging specifications.
