National Semiconductor MM54HC393E/883, HC/UH Series dual 4-bit binary counter, Package Bulk, RoHS non-compliant, Active lifecycle.
| Parameter | Value |
|---|---|
| Series | * |
| Package | Bulk |
RoHS non-compliant; contains lead in the solder finish or die-attach.
Product status is Active. No last-time-buy window to track.
Active, RoHS-non-compliant part with military screening. Moves through both franchised and independent channels.
The closest functional peers in the same package class (Bulk) are the 958DC and the 5493AFM. Both are binary counters, but they are not pin-compatible drop-ins — verify the pinout and logic family before substituting. The commercial-grade MM74HC393 is a different temperature grade and lacks /883 screening.