
Puya Semiconductor (Shanghai) Co., Ltd.
A strong functional alternative with matching Cortex-M0+ core and RAM, more Flash, and wider voltage, but lower max speed.
Finding a replacement for the STM32G030F6P6TR involves matching its Arm Cortex-M0+ core, 32KB Flash, and TSSOP-20 package. Alternatives exist but often require checking CPU speed, memory, and pin compatibility.
Many candidates have different ARM cores (M3, M4, M23) requiring significant firmware porting.
Some candidates have narrower voltage ranges or different CPU speeds that must be validated.
All reviewed candidates match the TSSOP-20 package, but pinout must be verified.
Direct replacement for STM32G030F6P6TR should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
The PY32F030F38P6TU is a strong candidate, offering a matching Cortex-M0+ core and RAM, with more Flash. The main trade-off is a lower max CPU speed (32MHz), which must be verified for the application.
Firmware and electrical incompatibility are the main risks. Many alternatives have different CPU cores or critical parameter differences like supply voltage or memory size, requiring significant redesign.

Puya Semiconductor (Shanghai) Co., Ltd.
A strong functional alternative with matching Cortex-M0+ core and RAM, more Flash, and wider voltage, but lower max speed.
| Feature / factor | STM32G030F6P6TR | PY32F030F38P6TU | GD32E230F4P6TR | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Core | Arm Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M23 | ARM Cortex-M0+ / ARM Cortex-M23 — Core architecture matches, simplifying firmware porting.; GD32E230F4P6TR: Different core requires firmware review/porting. | |
| Speed | 64 MHz | 32MHz | - | 32MHz — Candidate has lower max speed, check application timing. | |
| Flash | 32 KB | 64 KB | 16 KB | 64 KB / 16 KB — More program memory available.; GD32E230F4P6TR: Significantly less program memory. | |
| Ram | 8 KB | 8 KB | 4 KB | 8 KB / 4 KB — RAM size is identical.; GD32E230F4P6TR: Significantly less RAM. | |
| Voltage | 2.0 V ~ 3.6 V | 1.7V ~ 5.5V | 1.8 V ~ 3.6 V | 1.7V ~ 5.5V / 1.8 V ~ 3.6 V — Wider supply voltage range offers more flexibility.; GD32E230F4P6TR: Slightly wider supply voltage range. |
Verified drop-in options for STM32G030F6P6TR are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.