company blog about Supply/Recycle ESP32-H4HF4 Espressif Dual-Core Ultra-Low-Power BLE 5.4 + 802.15.4 RISC-V SoC Chip

Supply/Recycle ESP32-H4HF4 Espressif Dual-Core Ultra-Low-Power BLE 5.4 + 802.15.4 RISC-V SoC Chip

With the explosive growth in the number of IoT devices today, long battery life, multi-protocol compatibility and hardware-level security have become the three indispensable cornerstones of end-device design. In response to increasingly complex connectivity requirements, Espressif Systems has launched the ESP32-H4HF4 chip, the flagship product of its new H series. With core advantages such as a dual-core RISC-V architecture, dual-mode communication supporting BLE 5.4 and IEEE 802.15.4, and ultra-low power consumption, it redefines the value proposition of low-power IoT SoCs.

Shenzhen Mingjiada Electronics Co., Ltd. has been deeply rooted in the electronic components industry for over 25 years. We maintain a long-term stock of genuine ESP32-H4HF4 chips and offer high-value cash buyback services for surplus stock of this model, providing customers with a one-stop, closed-loop ‘supply + buyback’ solution.

I. Overview of the ESP32-H4 Series: The Positioning of the ESP32-H4HF4
The ESP32-H4 is another low-power IoT SoC launched by Espressif in its H series following the ESP32-H2. The chip integrates dual wireless connectivity capabilities—Bluetooth 5.4 (LE) and IEEE 802.15.4—and is equipped with a dual-core 32-bit RISC-V processor, alongside comprehensive security features and flexible memory expansion support. Designed for scenarios requiring long battery life, low-power operation and human-machine interaction, it supports advanced Bluetooth LE applications such as wearables, LE Audio devices and healthcare, whilst also supporting low-power Zigbee devices and Matter-over-Thread systems.

II. Detailed Specifications of the ESP32-H4HF4
At the heart of the ESP32-H4HF4 lies a dual-core 32-bit RISC-V processor. Both processor cores can operate at a maximum clock speed of 96MHz and incorporate an extended DSP instruction set. Compared to the single-core solution of the H2 series, this delivers approximately a 50% increase in computational power, sufficient to stably run complex protocol stacks and support parallel multitasking.
The ESP32-H4HF4 features 384KB of on-board SRAM and 128KB of ROM, and supports external PSRAM (up to 4MB), providing ample memory for memory-intensive applications such as Bluetooth Low Energy audio buffering, complex protocol stacks, data logging or sensor fusion.
Package and Electrical Specifications:
Package Type: QFN-40 (5×5×0.75mm), 0.4mm pin pitch
Operating Voltage: 2.3V–3.6V (typical 3.3V), with integrated on-chip DC-DC converter
Operating Temperature: -40°C to +85°C (commercial grade)
Number of GPIOs: Up to 40 programmable GPIOs, covering a wide range of peripheral interfaces including I2C, I2S, SPI, UART, LED-PWM, ADC, USB-OTG and MCPWM
Touch sensing: 15 integrated touch-sensing GPIOs, suitable for interactive devices such as capacitive touch panels and smart switches
Hardware Security: Integrated secure boot, memory encryption, true random number generator (TRNG), and ECDSA-based digital signature peripherals

III. Core Technical Features of the ESP32-H4HF4
Core Feature 1: Dual-mode, multi-protocol support enabling end-to-end Matter applications
The ESP32-H4HF4 integrates BLE 5.4 and 802.15.4, achieving full compatibility with the entire suite of mainstream IoT protocol stacks, including Zigbee 3.0, Thread 1.4 and Bluetooth Mesh 1.1.
Core Feature 2: Ultra-Low Power Consumption and Long Battery Life Design
The ESP32-H4HF4 is specifically designed for battery-powered devices. It features a built-in DC-DC converter that achieves higher power utilisation by reducing the supply voltage and minimising energy loss during voltage regulation. Configuration options to lower the maximum transmission power effectively reduce current consumption during RF transmission.
Core Feature 3: Dual-Core RISC-V Architecture + DSP Extensions
The dual-core 32-bit RISC-V processor operates at a maximum clock speed of 96MHz and is equipped with a DSP-extended instruction set, enabling stable support for complex protocol stacks and concurrent multitasking.

Mingjiada Electronics: Professional Supply and High-Value Buyback Services for the ESP32-H4HF4
(1) Genuine ESP32-H4HF4 Chips in Stock
Mingjiada Electronics specialises in the full range of Espressif chips and maintains a long-term stock of genuine ESP32-H4HF4 chips. Additionally, the company provides complementary variants and development resources for the ESP32-H4 series, including the ESP32-H4-WROOM module, the ESP32-H4-MINI-1 module and various development kits, offering a one-stop solution to meet customers’ complete procurement needs from chips and modules to development tools. We support bulk orders, small-batch trial orders and sample requests, and are equipped with a professional warehousing and logistics team to ensure stable delivery times and reliable quality.
Core supply models: ESP32-H4HF4, ESP32-H4, ESP32-H4HR2
Compatible module series: ESP32-H4-WROOM, ESP32-H4-MINI-1 and evaluation development kits
(2) ESP32-H4HF4 High-Value Buyback Service
Mingjiada Electronics offers a long-term market-oriented service, purchasing ESP32-H4HF4, ESP32-H4 series and the full range of ESP32-H2 IoT wireless MCU chips at competitive cash prices, providing professional solutions for businesses to monetise idle stock and revitalise assets.
Wide Range of Products Accepted: In addition to the ESP32-H4HF4, we also purchase the full range of Espressif products (ESP32-C/S/P series), as well as Bluetooth SoCs, Wi-Fi MCUs, Matter chips and IoT modules from brands such as TI, ST, Nordic and Silicon Labs.

If you wish to purchase ESP32-H4HF4 chips or dispose of related chip stock, please visit the Mingjiada Electronics website (https://www.integrated-ic.com/) for further details on supply and demand.