Texas Instruments SN74HCT138DR has 2 recorded cross-reference matches across 2 manufacturers. Research equivalent, alternate or similar parts using the listed candidates, and check their source notes before selecting a replacement.
ON Semiconductor MC74HCT138ADR2 versus Texas Instruments SN74HCT138DR:
Source manufacturer label ON Semi. Source technology HCT, generic MC74HCT138A, comments -55° to 125°C, package DR2/SOIC, pins 16. TI generic SN74HCT138, TI package DR, TI comments -40° to 85°C. Source notice: suitable substitute subject to both comments columns, no exact interchangeability guarantee; some mappings use engineering judgment.
STMicroelectronics M74HCT138RM13TR versus Texas Instruments SN74HCT138DR:
Source manufacturer label STM. Source technology HCT, generic M74HCT138, comments -55° to 125°C, package RM13TR/SOIC, pins 16. TI generic SN74HCT138, TI package DR, TI comments -40° to 85°C. Source notice: suitable substitute subject to both comments columns, no exact interchangeability guarantee; some mappings use engineering judgment.
Find additional research candidates through a shared connecting part. Each result is labeled Second-degree candidate · Unverified and shows both recorded source relationships.
Two recorded crosses do not establish a verified equivalent. Compare current specifications, interfaces, ratings, cable requirements and the same PCB footprint or panel fit before substitution. Candidate counts are separate from direct-cross and part totals.
SN74HCT138DR replacement and similar-part research
Looking for an equivalent or alternate to Texas Instruments SN74HCT138DR? The 2 recorded candidates above link to individual part pages and the evidence behind each relationship.
A recorded cross reference does not establish a drop-in replacement. Compare current datasheets, package or mounting dimensions, pinout, electrical ratings and operating conditions for your application. Similar parts can differ in critical specifications.
Counts describe recorded relationships, not stock, sales, testing or independent qualification. Manufacturer-and-part identities remain separate. Indexing dates do not establish current specifications or availability.
Check current manufacturer documents and electrical, mechanical, environmental and application requirements before selecting a replacement.