ESP32-S3-WROOM-1-N16R8
Espressif Systems
Needs validationmedium risk
Same ESP32-S3 WROOM-1 family, but PSRAM mode and temp rating differ.
Best Alternatives to ESP32-S3-WROOM-1-N16R2
ESP32-S3-WROOM-1-N16R2 alternatives exist within the WROOM-1 family, but none are proven pin-compatible from the provided data.
AI replacement insight
Electrical riskmedium
voltage matches; memory differs
Package riskmedium
pinout not verified
Firmware riskhigh
flash/PSRAM variants differ
Sourcing risklow
kept WROOM parts are active
Can it be replaced directly?
Direct replacement for ESP32-S3-WROOM-1-N16R2 should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
Start with ESP32-S3-WROOM-1-N16R8 if 65C temp and OSPI PSRAM are acceptable.
Main risk
Pinout, memory configuration, and temperature grade must be checked.
Recommended alternatives
7Alternative comparison matrix
| Feature / factor | ESP32-S3-WROOM-1-N16R2 | ESP32-S3-WROOM-1-N16R8 | ESP32-S3-WROOM-1-N16 | ESP32-S3-WROOM-1-N4R2 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 41-SMD Module | 41-SMD Module | 41-SMD Module | 41-SMD Module | 41-SMD Module — catalog string same; ESP32-S3-WROOM-1-N16: catalog string same; ESP32-S3-WROOM-1-N4R2: catalog string same; ESP32-S3-WROOM-1-N8R8: catalog string same |
| Pinout | 41 pins | 41 pins | 41 pins | 41 pins | 41 pins — pin functions not proven; ESP32-S3-WROOM-1-N16: pin functions not proven; ESP32-S3-WROOM-1-N4R2: pin functions not proven; ESP32-S3-WROOM-1-N8R8: pin functions not proven |
| Application | 16MB flash,2MB QSPI PSRAM | 16MB flash,8MB OSPI PSRAM | 16MB flash,no PSRAM | 4MB flash,2MB PSRAM | 16MB flash,8MB OSPI PSRAM / 16MB flash,no PSRAM / 4MB flash,2MB PSRAM / 8MB flash,8MB OSPI PSRAM — firmware changes likely; ESP32-S3-WROOM-1-N16: RAM downgrade; ESP32-S3-WROOM-1-N4R2: flash downgrade; ESP32-S3-WROOM-1-N8R8: memory map changes |
| Temperature | -40 to 85C | -40 to 65C | -40 to 85C | -40 to 85C | -40 to 65C / -40 to 85C — reduced ambient; ESP32-S3-WROOM-1-N16: same range; ESP32-S3-WROOM-1-N4R2: same range; ESP32-S3-WROOM-1-N8R8: reduced ambient |
| Voltage | 3.0-3.6V | 3.0-3.6V | - | 3.0-3.6V | 3.0-3.6V — same range; ESP32-S3-WROOM-1-N4R2: same range |
| Interface | Wi-Fi b/g/n,BLE5 | - | Wi-Fi b/g/n,BLE5 | - | Wi-Fi b/g/n,BLE5 — same radios |
Application & sourcing insights
Questions & answers
Verified drop-in options for ESP32-S3-WROOM-1-N16R2 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.