All Alternatives

Alternatives to onsemi MC3479P

onsemi MC3479P and its qualified second sources, compared on form, fit and function, stock, lifecycle and price — the same checks Parter runs inside a BOM.

Equivalent and substitute parts for onsemi MC3479P

MC3479P compared against its qualified second sources
MC3479PonsemiL293NETexas InstrumentsL293DSTMicroelectronics+1more
FFF CompatibilityThe pin assignment is completely different, meaning it cannot drop directly into an existing MC3479P socket without rewiring.Uses the exact same standard 16-pin PDIP physical package and through-hole mounting.Lacks the internal step/direction translator logic; step-by-step coil sequencing must be handled externally by a microcontroller.The pin assignment is completely different, preventing direct drop-in replacement.Shares the identical 16-pin PDIP package size and through-hole mounting style.Requires external step sequencing as it lacks a built-in step/direction translator.
AI Summary

MC3479P by onsemi: Bipolar Motor Driver CMOS Parallel 16-PDIP.

The L293NE provides a physical package match in a 16-DIP through-hole format with upgraded voltage and current handling. However, because it lacks an integrated step/direction sequencer, the driving logic must be generated externally, and the pinout must be manually re-routed.

  • Identical 16-DIP through-hole physical footprint and package style
  • Higher continuous current drive of 1A per channel compared to 350mA
  • Wider supply voltage operating range of 4.5V to 36V
  • No built-in translator; requires external step sequence generation
  • Pinout is completely incompatible with MC3479P

The L293D is an active, widely available 16-pin through-hole driver with integrated clamp diodes that can easily manage the load of the original stepper motor. Since it is a basic quad half-bridge driver, the step sequence logic must be managed by the host system, and a circuit board redesign is necessary.

  • Identical 16-DIP through-hole physical footprint and package style
  • Higher continuous current drive of 600mA per channel compared to 350mA
  • Features integrated clamp diodes for back-EMF suppression
  • No built-in step/direction translator
  • Pinout is completely incompatible with MC3479P
Lifecycle StatusObsoleteActiveActive
Market AvailabilityDiscontinuedIn stockIn stock
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