ESP32-H2FH4S
Espressif · ESP32-H2 Series
In production
32 bit · RV32IMAC
Low-power data
Max clock
96MHz
SRAM
320KB
On-chip Flash
4096KB
Active current
104.17µA/MHz
Sleep current
7µA
Supply voltage
3–3.6V
Overview
ESP32-H2FH4S is a Espressif-bit RISC-V MCU from 32, built on the Espressif in-house Espressif ESP-RISC-V (single core) core (RV32IMAC), with a maximum clock of 96 MHz, 320 KB of on-chip SRAM, and 4096 KB KB of Flash. Typical active power is about 104.17 µA/MHz.
Core and memory
| Vendor | Espressif（Chinese mainland） |
|---|---|
| IP brand / origin | Espressif in-house（Chinese mainland） |
| Core | Espressif ESP-RISC-V (single core) |
| ISA / bit width | RV32IMAC · 32 bit |
| Max clock | 96 MHz |
| SRAM | 320 KB |
| On-chip Flash | 4096 KB |
| OTP | 0.5 KB |
| Cache | 16 KB |
Power and electrical
Active current
104.17 µA/MHz
Sleep current
7 µA
Standby / shutdown
1 µA
Conditions and notes: The vendor or source notes are in Chinese in the original BLE/802.15.4 SoC（无 Wi-Fi）。Modem-sleep、CPU 运行、外设时钟关 10mA@96MHz→104.17µA/MHz；deep-sleep 7µA；light-sleep 85µA。
| Supply voltage | 3–3.6 V |
|---|---|
| Operating temperature | -40 ℃ ~ 105 ℃ |
Peripherals and interfaces
| UART / USART | 2 way |
|---|---|
| SPI | 3 way |
| I²C | 2 way |
| CAN / CAN FD | 1 way |
| USB Full-Speed | 1 way |
| BLE | 1 way |
| I²S | 1 way |
| DMA | 6 way |
| ADC | 5 channels · 12 bit |
| PWM | 6 channels |
| Other | The vendor or source notes are in Chinese in the original 802.15.4 (Thread/Zigbee)，MCPWM，RMT，PARLIO，ETM，4KB LP 存储 |
Sources and notes
Confidence:High (official datasheet) · Last verified 2026-11-04
The vendor or source notes are in Chinese in the original BLE 5.3 + 802.15.4，无 Wi-Fi；QFN32 4x4mm；19 GPIO；320KB SRAM + 4KB LP 存储、128KB ROM。4MB SiP Flash。