Alternatives to onsemi MC3479P
onsemi MC3479P and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 MC3479Ponsemi |  L293DSTMicroelectronics | A4988 (on StepStick Breakout Module)Allegro MicroSystems | +1more | |
|---|---|---|---|---|
| FFF Compatibility | While it uses the identical 16-pin DIP package shape and mounting style, the electrical pin configuration is entirely different, requiring a layout redesign.Both the target and alternative use the standard 16-PowerDIP (0.300 inch pitch, 7.62mm width) through-hole package.It operates as a dual H-bridge driver capable of driving a bipolar stepper motor, but lacks the internal clock/direction translator logic, requiring the host controller to handle phase sequencing. | Requires a carrier/breakout module board to plug into standard DIP-16 sockets or headers; the raw IC itself is surface-mount only.The module matches the standard 2.54mm pitch of a DIP layout, but has a taller vertical height profile due to the breakout board and on-board components.Provides a true step and direction translator interface that functionally replaces the MC3479P parallel control scheme, with significantly higher electrical capability. | ||
 AI Summary | MC3479P by onsemi: Bipolar Motor Driver CMOS Parallel 16-PDIP. | The L293D is an active, highly popular 16-DIP dual H-bridge driver that can easily drive bipolar stepper motors with higher voltage and current margins. However, it lacks an internal step-translation sequencer, meaning your microcontroller must generate the four-phase driver signals directly rather than using a single clock and direction line. This makes it an excellent, long-lived replacement option for designs where host processor control logic can be adapted.
| For applications requiring a modern, high-performance step/direction driver, an A4988 StepStick carrier module is an exceptional functional upgrade. It retains the simple step/direction control scheme while adding microstepping up to 1/16 and thermal/overcurrent protections. Although physical adaptation is required for the board's height profile, it represents a highly reliable second-source solution for obsolete integrated step/dir controllers.
| |
| Lifecycle Status | Obsolete | Active | Unknown | |
| Market Availability | Discontinued | In stock | Unknown | |
| REACH | REACH | REACH | Unknown | |
| RoHS | RoHS | RoHS | Unknown | |
| Description | Bipolar Motor Driver CMOS Parallel 16-PDIP | IC, DRIVER + DIODE QUAD, DIP16, 293 | For applications requiring a modern, high-performance step/direction driver, an A4988 StepStick carrier module is an exceptional functional | |
| Manufacturer | onsemi | STMicroelectronics | Allegro MicroSystems | |
| Type | Power Management (PMIC) | Motor / Motion / Ignition Controllers & Drivers | Component | |
| Datasheet | Open | Open | N/A | |
| Lead Time | 7 weeks | 52 weeks | Unknown | |
| Country of Origin | - | - | - | |
| Export Control Class Number | EAR99 | EAR99 | EAR99 | |
| HTSUS Code | 8542.39.0060 | - | - | |
| Moisture Sensitivity Level | 1 (Unlimited) | - | - | |
| Function | Driver - Fully Integrated, Control and Power Stage | - | - | |
| Interface | Parallel | - | - | |
| Technology | CMOS | - | - | |
| Applications | General Purpose | - | - | |
| Mounting Type | Through Hole | - | - | |
| Package / Case | 16-DIP (0.300", 7.62mm) | - | - | |
| Voltage - Load | 7.2V ~ 16.5V | - | - | |
| Step Resolution | 1, 1/2 | - | - |
Unlock all 3 alternatives
- Find & compare verified second sources
- Spot risk early with real-time part monitoring
- Stay compliant and production-ready
Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
 MC3479PGonsemi | Discontinued | Obsolete | 3Alternatives availableSee Alternatives |
 MC34072DGonsemi | In stock | Obsolete | 4Alternatives availableSee Alternatives |
You searched one part. Parter watches your whole BOM.
All your BOM, at once
Parter maps every line to live stock, lead time, lifecycle and compliance data across the entire market — not part by part.
Hear about problems before they hit production
Allocation, EOL and last-time-buy notices surface the moment they appear, not when your buyer's PO bounces.
Qualified replacements in minutes, not days
Every at-risk line gets form-fit-function matches like the ones above — deltas flagged, evidence attached. Review, push to your BOM, and Parter starts watching the new part too.
Frequently asked questions
Yes. The onsemi MC3479P is marked obsolete, so the manufacturer has discontinued it and any remaining supply is limited to distributor stock. The qualified second sources on this page are active parts you can design in today.
The closest qualified second sources for the onsemi MC3479P are the L293D (STMicroelectronics) and the A4988 (on StepStick Breakout Module) (Allegro MicroSystems), out of 3 matched alternatives in total. Each is compared against the original on fit, form and function in the table above.
Not always. The alternatives to the MC3479P are matched on function but can differ in package, pinout or a key parameter, so review the fit/form/function notes in the table and the datasheet before designing one in.
The MC3479P (onsemi) is a part in the Power Management (PMIC) category. This page lists qualified, cross-referenced replacements for it with a side-by-side comparison.
Schedule a demo
See Parter in action
Discover how Parter can help your hardware team:
- Streamline your hardware operations with AI
- Detect and prevent lifecycle disruptions
- Accelerate product development
- Stay compliant and production-ready