The 54LS169FM is RoHS non-compliant. For BOMs that require RoHS conformance — particularly EU markets or medical/automotive assemblies with explicit substance restrictions — this part does not meet the directive. Verify your project's exemption or tolerance for lead-bearing solder before committing the line.

54LS169FM Binary Counter, LS Series TTL, Active
54LS169FM, LS Series TTL, 4-bit binary counter, synchronous up/down, active lifecycle, RoHS non-compliant, Bulk package.
Specifications
| Parameter | Value |
|---|---|
| Series | * |
| Package | Bulk |
Product details
Frequently asked questions
What is the 54LS169FM equivalent?
A functional alternative is the 5493AFM, also a binary counter in the same package type. However, the 5493AFM uses a different counter architecture (divide-by-12/16) and is not a pin-for-pin replacement. Verify the counter sequence and pinout against your design before substituting.
Is 54LS169FM compatible with 74LS series?
Yes, the 54LS169FM belongs to the LS series TTL family and shares the same logic levels and 5 V supply as the 74LS series. The 54 prefix indicates the military temperature range (-55 to 125°C), while 74LS parts are typically commercial or industrial grade. Electrically, they are interoperable at the same supply voltage.