ESP32-PICO-D4 System-in-Package Combines ESP32, 4MB SPI Flash, a Crystal Oscillator, and Passive Components

Espressif Systems has revealed another ESP32 variant, but this time it’s not an SoC, but a 7x7mm system-in-package (SIP) that comes ESP32 dual core processor, a 4MB  SPI flash, a crystal oscillator and various passive components, so that you don’t need to include those in your design, and create an ultra-compact PCB for wearables and other space-constrained applications.

ESP32-PICO-D4 SiP specifications:

• SoC – ESP32 with two Tensilica LX6 cores, 448 KB ROM, 520 KB SRAM (inc. 8KB RTC memory), 1kbit eFuse
• On-module Flash – 4MB SPI flash
• Connectivity
  • WiFi – 802.11 b/g/n/e/i (802.11n up to 150 Mbps)
  • Bluetooth – Bluetooth V4.2 BR/EDR and BLE specification; ; class-1, class-2 and class-3 transmitter; Audio: CVSD and SBC
• SIP Interfaces
  • SD card, UART, SPI, SDIO, LED PWM, Motor PWM, I2S, I2C, IR
  • GPIO, capacitive touch sensor, ADC, DAC, LNA pre-amplifier
• Sensors –  On-chip Hall sensor & temperature sensor
• Clock – On-module 40 MHz crystal
• Power supply – 2.3 ~ 3.6V
• Operating current – Average: 80 mA
• Temperature range –  -40°C ~ 85°C
• Package dimensions –  7.0±0.1 mm x 7.0±0.1 mm x 0.94±0.1 mm

I understand ESP32 supports up to 16MB flash, so future ESP32-PICO-D16 SIP might be possible too. The second schematics in the datasheet shows what a basic board with ESP32-PICO SIP looks like.

The company explains the SiP is particularly suited for any space-limited or battery-operated applications, such as wearable electronics, medical equipment, sensors and other IoT products. Beside the datasheet, there’s currently very little information about ESP32-PICO-D4 on the web, so we’ll have to wait to see what comes out of it.

[Update: Photo of module with ESP32-PICO-D4

]

Via ESP32net Tweet

Jean-Luc Aufranc (CNXSoft)

Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later in 2011.

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