Needs validationmedium risk
HC32F002C4PZ is a close electrical MCU candidate, not a confirmed drop-in.
Best Alternatives to CH32V003F4P6
No listed part is a confirmed pin-compatible CH32V003F4P6 replacement. TSSOP-20 MCU options need pinout and firmware validation.
AI replacement insight
Electrical riskhigh
some candidates do not cover 5.5V
Package risklow
kept parts are TSSOP-20,20p
Firmware riskhigh
all kept parts use non-RISC-V cores
Sourcing riskmedium
several lifecycles are blank
Can it be replaced directly?
No confirmed pin-compatible replacement is supported by the provided fields.
Best replacement path
Start with HC32F002C4PZ or PY32 options only after pinout and firmware review.
Main risk
MCU architecture and pinout are unverified.
Recommended alternatives
7Alternative comparison matrix
| Feature / factor | CH32V003F4P6 | HC32F002C4PZ-TSSOP20TR | PY32F030F38P6TU | PY32F003F14P6TU | Compatibility / risk |
|---|---|---|---|---|---|
| Package | TSSOP-20,20p | TSSOP-20,20p | TSSOP-20,20p | TSSOP-20,20p | TSSOP-20,20p — mechanical match only; PY32F030F38P6TU: mechanical match only; PY32F003F14P6TU: mechanical match only; PY32F002AF15P6TU: mechanical match only |
| Pinout | CH32V003 map | not provided | not provided | not provided | not provided — no p2p claim; PY32F030F38P6TU: verify before layout; PY32F003F14P6TU: no p2p evidence; PY32F002AF15P6TU: no p2p evidence |
| Voltage | 2.7-5.5V | 1.7-5.5V | 1.7-5.5V | 1.7-5.5V | 1.7-5.5V — range covers target; PY32F030F38P6TU: range covers target; PY32F003F14P6TU: range covers target; PY32F002AF15P6TU: range covers target |
| Application | RISC-V 48M 16K/2K | M0+ 48M 18K/2K | M0+ 32M 64K/8K | M0+ 32M 16K/2K | M0+ 48M 18K/2K / M0+ 32M 64K/8K / M0+ 32M 16K/2K / M0+ 24M 20K/3K — firmware rewrite; PY32F030F38P6TU: slower core clock; PY32F003F14P6TU: lower speed; PY32F002AF15P6TU: half clock rate |
| Temperature | missing | -20 to 105C | - | - | -20 to 105C — coverage unknown |
| Lifecycle | Active | - | - | - | - — status unclear; PY32F003F14P6TU: status unclear; PY32F002AF15P6TU: status unclear |
Application & sourcing insights
Questions & answers
From the provided list, HC32F002C4PZ is the closest spec candidate, but it still needs pinout and firmware review.