Datasheet (1)
NAR-ESP32S3R16/32 SiP Datasheet
[NAR-ESP32S3R16/32]
Corezzle Electronics
Generative Hardware, SiP, Edge AI & IoT Solutions
NAR-ESP32S3R16/32 — IoT & Wearable Technology SiP Module™
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Catalog Product — Available for Purchase. The NAR-ESP32S3R16/32 series is ready for production; you can submit a request for samples and volume orders. The detailed datasheet and reference design are shared upon request.
NAR-ESP32S3R16/32 is a System-in-Package module in a 21 × 27 × 1.9 mm LGA-68 package, designed for IoT and wearable technology applications. It integrates the Espressif ESP32-S3R16V processor (dual-core Xtensa® LX7 @ 240 MHz, 16 MB octal PSRAM, Wi-Fi 4 + Bluetooth® LE 5), 32 MB QSPI flash, the AXP2101 power management IC, the ES8311 audio codec, the ES7210 4-channel microphone ADC, the ICM-42686-P 6-axis IMU, and the PCF85063 real-time clock in a single package. It is optimized for sensor devices, smart home, wearable technology, and tracking devices. By consolidating dozens of discrete components into a single SiP, the NAR-ESP32S3R16/32 reduces board space and design complexity; it supports the ESP-IDF and Arduino development environments. It is sold as a standard SiP, with a project-based design service offered for custom SiP variants.
Product Details
Block Diagram
Select diagram:
NAR-ESP32S3R16/32 SiP Module Block Diagram
Integrated Components
Processor and Connectivity
Application Processor + Radio
- Processor: ESP32-S3R16V (Espressif)
- Cores: 2× Xtensa® LX7 @ 240 MHz
- SRAM: 512 KB internal
- Wireless: Wi-Fi 4 (802.11 b/g/n, 2.4 GHz)
- Bluetooth: 5 LE + Mesh
Memory
PSRAM + Flash
- PSRAM: 16 MB Octal (integrated in ESP32-S3R16V)
- Flash: 32 MB QSPI NOR (GD25LQ256, GigaDevice)
Power Management
PMIC
- PMIC: AXP2101 (X-Powers)
- Charging: Li-Ion charge controller
- Rails: 5× DCDC + 4× ALDO + 2× BLDO (programmable)
Audio
Codec + Microphone ADC
- Codec: ES8311 (Everest Semiconductor), mono I²S, 24-bit
- Microphone ADC: ES7210 (Everest Semiconductor), 4-channel, TDM
Sensing and Timing
IMU + RTC
- IMU: ICM-42686-P (TDK InvenSense), 6-axis (accelerometer + gyroscope)
- RTC: PCF85063 (NXP), I²C, 32.768 kHz
Interface, Protection, Driver and Clock
USB + ESD + Driver + Oscillator
- USB connector: USB4105-GF-A (GCT), USB-C
- ESD protection: USBLC6-2SC6 (STMicroelectronics)
- Motor driver: MMBT3904 (motor / actuator transistor)
- Clock: 40 MHz (system) + 32.768 kHz (RTC) crystal
Features
Hardware Specifications
- Package: 21 × 27 × 1.9 mm LGA-68 castellated, 68 pins
- Processor: 2× Xtensa® LX7 @ 240 MHz
- Memory: 16 MB octal PSRAM + 32 MB QSPI flash
- Wireless: Wi-Fi 4 + Bluetooth 5 LE / Mesh
- Audio: mono codec (ES8311) + 4-channel mic ADC (ES7210)
- Sensors: 6-axis IMU (ICM-42686-P) + RTC (PCF85063)
- Power: AXP2101 Li-Ion charging + dynamic power management
- USB: 2.0 OTG (Full-Speed) + integrated ESD protection
- Temperature: −40 °C / +85 °C
- Power consumption: low-power sleep modes (bench profiles coming soon)
Compatibility
- SDK: ESP-IDF (FreeRTOS-based)
- Arduino: Arduino core support
- Protocols: Wi-Fi + Bluetooth 5 LE + ESP-MESH
- Audio: ESP-SR preprocessing / command recognition (4 microphones)
- Updates: OTA firmware
- Interface/UI: LVGL embedded graphics library
Interfaces
- Ecosystem: fully compatible with Espressif ESP32-S3
- Libraries: ESP-IDF + Arduino
- Delivery: standard SiP, custom SiP variants on a project basis
- Expansion: reference design + dev kit (bilingual TR/EN)
Interfaces
- USB: 2.0 OTG / USB-C, Full-Speed (12 Mbps)
- I²C: system bus (PMIC, IMU, RTC, codec, mic ADC)
- Audio: I²S output + TDM 4-channel microphone input
- SPI / QSPI: flash and external peripherals
- UART: serial communication
- SDIO: microSD / SDIO
- GPIO: ~45 general-purpose
- Motor: actuator / haptic driver output
- RF: integrated PCB antenna or u.FL (2.4 GHz)
- Debug: USB-Serial-JTAG (no external programmer required)
Development Environment
- Official SDK: ESP-IDF (C / C++, FreeRTOS)
- Prototyping: Arduino core
- Audio: ESP-SR far-field / command recognition
- UI: LVGL
- Flash + Debug: USB-Serial-JTAG, single cable
- Documentation: bilingual TR/EN dev kit
Documentation
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