STMicroelectronics M24SR-DISCO-PREM

Overview

M24SR-DISCO-PREM from STMicroelectronics is a premium evaluation kit for the M24SR64-Y dynamic NFC/RFID tag IC, integrating an STM32F103RGT6 microcontroller (32-bit ARM Cortex-M3, 1 MB Flash), a 320×200 color LCD, a 31 mm × 30 mm 13.56 MHz inductive antenna, and a Bluetooth audio module with 3.5 mm headset jack. It enables NFC-initiated pairing, I²C-controlled EEPROM access, and real-time visual feedback for secure data exchange.

For engineers reviewing the M24SR-DISCO-PREM datasheet, M24SR-DISCO-PREM pinout, M24SR-DISCO-PREM application, or M24SR-DISCO-PREM equivalent, this board supports rapid prototyping of NFC-enabled IoT peripherals, smartphone-interactive smart labels, Bluetooth-augmented RFID authentication systems, and dual-interface memory-based secure credentialing solutions.

Technical Context

The kit implements a dual-interface architecture: the M24SR64-Y operates as an ISO/IEC 14443 Type A and NFC Forum Type 4 Tag via RF, while simultaneously exposing its 64 Kbit EEPROM over I²C to the STM32F103 host MCU. The microcontroller drives the LCD via SPI and manages Bluetooth audio routing through dedicated analog outputs.

Power is supplied exclusively via USB micro-B (5 V), with no onboard voltage regulation for external RF field harvesting. All user interaction-including menu navigation and reset-is handled by the integrated joystick and physical reset button, with status indicated by multicolor LEDs.

Key Specifications

Availability

M24SR-DISCO-PREM is available at Aetrix Electronics and suitable for NFC-enabled smart label development, Bluetooth-augmented secure credentialing, and smartphone-interfaced industrial asset tagging requiring stable component supply and full evaluation capability.

Supply support for M24SR-DISCO-PREM includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, designing and manufacturing microcontrollers, sensors, power ICs, and RF solutions for industrial, automotive, and consumer applications.

The M24SR-DISCO-PREM belongs to ST's Discovery kit product line-engineered to accelerate evaluation and integration of ST's dynamic NFC/RFID tag ICs into secure, smartphone-accessible embedded systems.

FAQ

Does M24SR-DISCO-PREM support over-the-air firmware updates via NFC?

No. The M24SR64-Y tag IC supports NFC read/write of its EEPROM memory, but the STM32F103 host firmware can only be updated via JTAG or USB DFU mode-not through NFC-triggered reprogramming. NFC interaction is limited to data exchange with the tag's memory space.

What is the role of the Bluetooth module on this board?

The Bluetooth module enables audio streaming from the board to a paired smartphone or headset. It is not used for data communication with the M24SR64-Y; instead, it demonstrates how NFC tap-and-pair can initiate Bluetooth audio sessions-leveraging the tag's RF interface to trigger the STM32 to activate the Bluetooth stack.

Can the LCD display be driven directly by the M24SR64-Y IC?

No. The M24SR64-Y has no display interface capability. The 320×200 color LCD is exclusively driven by the STM32F103RGT6 microcontroller via its SPI peripheral. The M24SR64-Y serves only as a dual-interface memory device accessed over I²C or RF.

Is external power required beyond the USB micro-B connector?

No. The board is powered solely via the USB micro-B port (5 V). There is no provision for external DC input, battery, or RF field energy harvesting. All subsystems-including the STM32, LCD, Bluetooth module, and M24SR64-Y-are powered from this single source.