Espressif ESP32-PICO-V3-02 System-in-Package (SiP) Module Dual-Core 240MHz 8MB Flash 2MB PSRAM QFN-48

ESP32-PICO-V3-02 Product Overview

The ESP32-PICO-V3-02 is a highly integrated System-in-Package (SiP) module from Espressif Systems, the flagship model in the ESP32-PICO series. Based on the ESP32 (ECO V3) chip, it seamlessly integrates an Xtensa® dual-core 32-bit LX6 microprocessor, Wi-Fi 802.11b/g/n, Bluetooth v4.2 BR/EDR and BLE, 8MB SPI Flash, 2MB SPI PSRAM, and all critical peripheral components (crystal oscillator, filter capacitors, RF matching network) into a single QFN-48-EP (7×7mm) package. The ESP32-PICO-V3-02 simplifies complex RF design to the extreme - it requires no external components to function. With assembly and testing completed at the SiP level, the ESP32-PICO-V3-02 significantly reduces supply chain complexity and improves management efficiency. Featuring a compact size, powerful performance, and low power consumption, it is ideal for any space-constrained or battery-powered device.

ESP32-PICO-V3-02 Key Features

Powerful Dual-Core Processor & Large Memory: The ESP32-PICO-V3-02 features an Xtensa® dual-core 32-bit LX6 microprocessor running at up to 240MHz. On-chip memory includes 448KB ROM, 520KB SRAM, and 16KB RTC SRAM. The package integrates 8MB SPI Flash and 2MB SPI PSRAM, providing ample storage and runtime memory for complex applications, AI models, and data processing.

Dual-Mode Wireless Connectivity: Supports 2.4GHz Wi-Fi (IEEE 802.11b/g/n) with 802.11n data rates up to 150Mbps, A-MPDU and A-MSDU frame aggregation, and 0.4μs guard interval. Supports Bluetooth v4.2 BR/EDR and BLE dual-mode standards, with Class-1, Class-2, and Class-3 transmitters, Adaptive Frequency Hopping (AFH) , and CVSD and SBC audio codecs.

QFN-48-EP (7×7mm) Ultra-Compact Package: The ESP32-PICO-V3-02 comes in a QFN-48-EP (7×7mm) package measuring just 7×7×1.11mm. It provides up to 31 programmable GPIOs, with 5 strapping pins, 4 pins connected to in-package flash/PSRAM, and 6 input-only pins. Compared to other ESP32 series chips, it adds GPIO20. Flash pins (DI, DO, /HOLD, /WP) and PSRAM pins (SI/SIOO, SO/SIO1, SIO2, SIO3) are not brought out to enhance security.

Rich Peripheral Interfaces: Integrates ADC, DAC, touch sensors, SD/SDIO/MMC host controller, SPI, SDIO/SPI slave controller, EMAC, motor PWM, LED PWM, UART, I2C, I2S, infrared remote control, GPIO, pulse counter, TWAI® (compatible with ISO 11898-1, CAN 2.0) , and more.

Industrial-Grade Wide Temperature & Low Power: Operating voltage range of 3.0V ~ 3.6V, temperature range of -40°C ~ +85°C. Manufactured on TSMC's 40nm ultra-low-power process.

ESP32-PICO-V3-02 Applications

With its ultra-compact size, 8MB Flash + 2MB PSRAM large memory, and dual-mode wireless connectivity, the ESP32-PICO-V3-02 is especially suited for space-constrained or large-memory applications:

Wearable Electronics: Smartwatches, bands, fitness trackers, AR/VR headsets

Medical Devices: Portable monitors, health trackers, smart thermometers, continuous glucose monitors (CGM)

Sensor Nodes & IoT: Low-power IoT sensor hubs, data loggers, environmental monitoring, asset trackers

Smart Home & Consumer Electronics: Smart speakers, voice toys, smart gateways, smart lighting, smart plugs, remote controls

Industrial Control: Industrial sensors, equipment monitoring, factory automation

Camera Video Streaming, OTT TV boxes/Set-top boxes, Voice Recognition, Image Recognition

Education & Prototyping: Adafruit QT Py ESP32 Pico, M5Stack StickC-Plus2 development platforms

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FAQs:

1. Question: What is the ESP32-PICO-V3-02?
   Answer: It is a System-in-Package (SiP) from Espressif that integrates the ESP32 (ECO V3) chip, crystal, Flash, PSRAM, and RF matching into a single unit, requiring no external components .

2. Question: What is the core processor and frequency?
   Answer: It features a dual-core Xtensa 32-bit LX6 processor with a maximum frequency of 240 MHz .

3. Question: What memory is integrated?
   Answer: The package includes 8 MB SPI Flash and 2 MB SPI PSRAM . Internally, it contains 448 KB ROM, 520 KB SRAM, and 16 KB RTC SRAM .

4. Question: Which wireless protocols does it support?
   Answer: It supports 2.4 GHz Wi-Fi (802.11 b/g/n, up to 150 Mbps) and Bluetooth v4.2 BR/EDR/LE .

5. Question: What are the advantages over standard ESP32?
   Answer: As an SiP, it significantly reduces supply chain complexity . It adds a dedicated GPIO20 pin . For security, internal Flash and PSRAM control pins are not exposed .

6. Question: What is the operating voltage and temperature range?
   Answer: The supply voltage is 3.0V to 3.6V, and the operating temperature range is -40°C to +85°C .

7. Question: What applications is it suitable for?
   Answer: It is ideal for wearables, medical devices, sensor hubs, smart home controllers, and industrial automation requiring compact size or battery power .

8. Question: What is its RF performance?
   Answer: It offers a maximum transmit power of 19.5 dBm and a receive sensitivity of approximately -97 dBm .

9. Question: What is the package size?
   Answer: It uses a 48-pin QFN-48-EP package with a physical size of 7.0 x 7.0 mm .

10. Question: What should be noted during board design?
    Answer: Board design is simplified due to integrated components . For GPIO, note that 4 pins are occupied by the internal Flash/PSRAM, 6 are input-only, leaving 31 available .