ESP32-C6-WROOM-1 vs ESP32-C61-WROOM-1
ESP32-C6-WROOM-1
WROOM · ESP32-C6 · Active
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ESP32-C61-WROOM-1
WROOM · ESP32-C61 · New
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Figures here are compiled from Espressif's official datasheets, with the source linked on each page. Mistakes are possible, so if something looks off, please report it.
Which should you choose?
These run different SoCs (ESP32-C6 vs ESP32-C61), so they differ in CPU, wireless and peripherals, not just packaging.
These two are closely matched on the spec sheet, so decide on price, availability and which footprint fits your board.
Size, to scale
Same footprint: both are 18×25.5 mm.
Spec differences at a glance
- SRAM: ESP32-C6-WROOM-1 512 KB · ESP32-C61-WROOM-1 320 KB
- ROM: ESP32-C6-WROOM-1 320 KB · ESP32-C61-WROOM-1 256 KB
- Flash options: ESP32-C6-WROOM-1 4 / 8 / 16 MB · ESP32-C61-WROOM-1 8 / 16 MB
- PSRAM: ESP32-C6-WROOM-1 None · ESP32-C61-WROOM-1 2 / 8 MB (quad)
- Co-processor: ESP32-C6-WROOM-1 ULP-RISC-V · ESP32-C61-WROOM-1 none
- 802.15.4 (Thread/Zigbee): ESP32-C6-WROOM-1 Yes · ESP32-C61-WROOM-1 No
- ADC: ESP32-C6-WROOM-1 7× 12-bit · ESP32-C61-WROOM-1 4× 12-bit
- UART / SPI / I²C / I²S: ESP32-C6-WROOM-1 2 / 1 / 2 / 1 · ESP32-C61-WROOM-1 3 / 1 / 1 / 1
- TWAI (CAN): ESP32-C6-WROOM-1 Yes · ESP32-C61-WROOM-1 No
- Deep sleep: ESP32-C6-WROOM-1 7 µA · ESP32-C61-WROOM-1 10 µA
- Lifecycle: ESP32-C6-WROOM-1 Active · ESP32-C61-WROOM-1 New
- Crypto: ESP32-C6-WROOM-1 AES, SHA, RSA, HMAC, ECC, RNG · ESP32-C61-WROOM-1 AES, SHA, ECC, ECDSA, RNG
Compute & memory
⚑ flag an error| ESP32-C6-WROOM-1 | ESP32-C61-WROOM-1 | |
|---|---|---|
| CPU | RISC-V, 1-core | RISC-V, 1-core |
| Max clock | 160 MHz | 160 MHz |
| SRAM≠ | 512 KB | 320 KB |
| ROM≠ | 320 KB | 256 KB |
| Flash options≠ | 4 / 8 / 16 MB | 8 / 16 MB |
| PSRAM≠ | None | 2 / 8 MB (quad) |
| Co-processor≠ | ULP-RISC-V | none |
Wireless
⚑ flag an error| ESP32-C6-WROOM-1 | ESP32-C61-WROOM-1 | |
|---|---|---|
| Wi-Fi | Wi-Fi 6 | Wi-Fi 6 |
| Wi-Fi bands | 2.4GHz | 2.4GHz |
| Bluetooth | BLE 5.x | BLE 5.x |
| 802.15.4 (Thread/Zigbee)≠ | Yes | No |
| Antenna | PCB | PCB |
Peripherals & I/O
⚑ flag an error| ESP32-C6-WROOM-1 | ESP32-C61-WROOM-1 | |
|---|---|---|
| Usable GPIO | 23 | 23 |
| ADC≠ | 7× 12-bit | 4× 12-bit |
| USB | USB-Serial-JTAG | USB-Serial-JTAG |
| UART / SPI / I²C / I²S≠ | 2 / 1 / 2 / 1 | 3 / 1 / 1 / 1 |
| TWAI (CAN)≠ | Yes | No |
| SD/MMC | Yes | Yes |
| Ethernet MAC | No | No |
| Touch | 0 | 0 |
Power
⚑ flag an error| ESP32-C6-WROOM-1 | ESP32-C61-WROOM-1 | |
|---|---|---|
| Operating voltage | 3.0-3.6 V | 3.0-3.6 V |
| Deep sleep≠ | 7 µA | 10 µA |
Physical
⚑ flag an error| ESP32-C6-WROOM-1 | ESP32-C61-WROOM-1 | |
|---|---|---|
| Dimensions | 18 × 25.5 × 3.1 mm | 18 × 25.5 × 3.1 mm |
| Pin count | 29 | 29 |
| Temp range | -40 to 85 °C | -40 to 85 °C |
| Mounting | SMD castellated | SMD castellated |
| Lifecycle≠ | Active | New |
Security
⚑ flag an error| ESP32-C6-WROOM-1 | ESP32-C61-WROOM-1 | |
|---|---|---|
| Secure boot | Yes | Yes |
| Flash encryption | Yes | Yes |
| Crypto≠ | AES, SHA, RSA, HMAC, ECC, RNG | AES, SHA, ECC, ECDSA, RNG |
| Digital signature | Yes | Yes |
| TRNG | Yes | Yes |