Evidence-scoped component comparison
STM32F103 vs GD32E103 – Hardware and Firmware Migration
STM32F103 and GD32E103 require a migration review spanning silicon limits, exact package pins, clocks and boot behavior, peripheral details, startup code, SDK and qualification.
Use GD32E103 only as a migration candidate; no zero-change or drop-in conclusion is made.
The final decision depends on your exact suffix, schematic, PCB footprint, firmware, operating conditions and compliance requirements. “Match” below means only the cited topic matched in the reviewed evidence.
Electrical comparison
Compare supply, clock tree, flash timing, ADC/DAC and peripheral electrical limits for the complete codes.
Package and mechanical
Package family and pin count do not prove an identical land pattern or pin assignment.
Pinout comparison
Compare every used pin, oscillator, reset, boot strap, debug and alternate function.
Firmware comparison
Audit linker script, startup, clocks, interrupt names, peripheral edge cases, USB/CAN behavior and production programming.
Compliance comparison
Temperature grade, qualification, material declarations and lifecycle apply independently.
Questions engineers and buyers ask
Comparison FAQ
Answers preserve the exact-code and evidence boundary instead of turning a candidate into a compatibility promise.
Can GD32E103 directly replace STM32F103?
No automatic replacement is claimed. Use GD32E103 only as a migration candidate; no zero-change or drop-in conclusion is made. The exact suffix, circuit and operating conditions control the decision.
Which evidence is needed to compare STM32F103 and GD32E103?
Use current manufacturer documents for both exact order codes and cover electrical limits, package drawing, pin functions, firmware behavior and compliance scope. This page cites STMicroelectronics STM32F103 product family and GigaDevice GD32E103 datasheet.
Does this comparison confirm current stock, price or date code?
No. Technical comparison evidence does not prove commercial availability. Quantity, price, date code, packing, lead time and traceability are confirmed in a specific quotation.
Source boundary
Evidence supports the comparison—not current availability.
Never call the families pin-compatible or drop-in based only on familiar MPN fragments; exact hardware and firmware evidence must support every migration statement. Pricing, stock, date code and traceability remain quotation-specific.
2 current manufacturer documents passed the database evidence gate.