74AC138MTC

Signal Switches, Multiplexers, Decoders Overview

The onsemi 74AC138MTCX is a high-speed 1-of-8 decoder/demultiplexer in the 74AC logic series. It accepts three binary weighted address inputs (A0, A1, A2) and provides eight mutually exclusive active-LOW outputs (O0-O7). The device operates with a supply voltage range of 2.0 V to 6.0 V and supports an operating temperature from -40°C to +85°C. It features multiple input enables for parallel expansion and outputs capable of sourcing or sinking 24 mA.

Signal Switches, Multiplexers, Decoders Feature Summary

• Demultiplexing capability using enable inputs as data strobes
• Multiple input enables allow easy parallel expansion to larger decoders
• Active LOW mutually exclusive outputs ensure precise signal selection

Signal Switches, Multiplexers, Decoders Applications

• High-speed bipolar memory chip select address decoding
• Parallel expansion to 1-of-24 or 1-of-32 decoder configurations
• General-purpose digital signal routing and demultiplexing

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and shipping quantity. The 'MTC' designation indicates a TSSOP-16 package. Confirm RoHS compliance status and lead-free markings via the manufacturer's current datasheet revision. Ensure the component matches the required logic family specifications for your application design.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when a high-speed 1-of-8 decoding function is required within the 74AC logic family. It is suitable for applications needing low quiescent current and robust output drive capabilities. Consider the ACT variant if TTL-compatible input thresholds are necessary for interfacing with legacy logic levels.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the 74AC138 series of decoders and demultiplexers manufactured by onsemi. It is functionally compatible with other industry-standard 74AC138 devices but offers specific performance characteristics defined by onsemi's manufacturing process. The MTC package variant provides a surface-mount solution for compact circuit board designs.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Cross-reference with other manufacturers' 74AC138 equivalents such as those from NXP or Texas Instruments. Verify pinout compatibility and electrical parameter alignment before substitution. Check for any differences in enable logic polarity or output drive strength.