74HC138D
Toshiba Semiconductor and Storage
Needs validationlow risk
This Toshiba part is a cross-vendor equivalent with matching function, package, and key electricals.
Best Alternatives to 74HC138D,653
The Nexperia 74HC138D,653 is a standard 3-to-8 inverting decoder in a 16-SOIC package. Alternatives exist from other 74HC family manufacturers and functional variants with different output logic.
AI replacement insight
Electrical risklow
Key electricals like voltage and temperature match well with cross-vendor options.
Package risklow
The SO-16 package is standardized, but minor width variations should be checked.
Firmware riskhigh
No firmware risk for this logic IC, but high risk of circuit logic error if using a non-inverting part like the 74HC238.
Can it be replaced directly?
Direct replacement for 74HC138D,653 should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
A cross-vendor equivalent from the same 74HC138 family, such as the Toshiba 74HC138D.
Main risk
The main risk is substituting with a functionally similar but logically different part, like the 74HC238D, which has non-inverting outputs.
Recommended alternatives
2Alternative comparison matrix
| Feature / factor | 74HC138D,653 | 74HC138D | 74HC238D,653 | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Function | Decoder/Demultiplexer | Decoder/Demultiplexer | Active HIGH | Decoder/Demultiplexer / Active HIGH — Both are 3-to-8 inverting decoders.; 74HC238D,653: Candidate has non-inverting outputs, opposite of target's inverting (Active LOW) outputs. | |
| Package | 16-SOIC | 16-SOIC | 16-SOIC (3.90mm Width) | 16-SOIC / 16-SOIC (3.90mm Width) — Both are in a 16-pin SOIC package.; 74HC238D,653: Identical package and pin count. | |
| Voltage | 2.0 V to 6.0 V | 2V ~ 6V | 2.0V ~ 6.0V | 2V ~ 6V / 2.0V ~ 6.0V — Identical supply voltage range.; 74HC238D,653: Identical supply voltage range. | |
| Temperature | -40 °C to +125 °C | -40°C ~ 125°C | -40°C ~ +125°C | -40°C ~ 125°C / -40°C ~ +125°C — Identical operating temperature range.; 74HC238D,653: Identical operating temperature range. |
Application & sourcing insights
Questions & answers
Verified drop-in options for 74HC138D,653 are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.