MC14556BDR2G

Overview

The MC14556BDR2G is a dual binary-to-1-of-4 decoder/demultiplexer manufactured by onsemi. It integrates two independent decoders within a single SOIC-16 surface-mount package. The device operates on complementary MOS (CMOS) technology, supporting a supply voltage range of 3V to 18V and an operating temperature range of -55°C to +125°C. Each decoder features two select inputs and provides four mutually exclusive outputs. The component delivers source and sink currents of 8.8mA, ensuring reliable signal routing in digital logic applications.

Feature Summary

• Integrates two independent binary-to-1-of-4 decoders or demultiplexers in a single package
• Utilizes CMOS enhancement mode construction for low power consumption
• Provides wide operating temperature range suitable for industrial environments

Applications

• Digital signal routing and switching systems
• Address decoding in microprocessor-based designs
• Data distribution networks requiring multiple output channels

Procurement Notes

Verify the specific suffix DR2G confirms the SOIC-16 tape-and-reel packaging configuration. Confirm the manufacturer is onsemi to ensure compliance with specified electrical characteristics. Check RoHS status documentation for environmental compliance requirements prior to integration into final assemblies.

Selection Notes

Select this component when dual independent decoding functions are required in a compact form factor. The wide voltage range accommodates various logic families. Ensure the PCB footprint matches the SOIC-16 package dimensions. Verify thermal management capabilities align with the specified junction temperature limits under maximum load conditions.

Part Context

This part belongs to the MC14555/MC14556B series of CMOS timer and decoder devices. It serves as a functional alternative to legacy TTL decoding circuits, offering improved noise immunity and lower power dissipation. The dual-channel architecture reduces board space compared to using separate single-decoder ICs.

Replacement Considerations

The MC14555BDG is a pin-compatible variant available in tube packaging. Cross-reference with other CMOS decoder families from different manufacturers only if electrical specifications such as current drive and voltage ranges are fully compatible.