The Micro SD/TF card storage module adopts the standard SPI communication protocol and supports DC 4.5V to 5V direct current power supply. It is equipped with the AMS1117-3.3 voltage regulator chip and the 74LVC4245 bidirectional level conversion chip to solve the voltage matching problem between the 5V single-chip microcontroller I/O ports and the 3.3V SD card, ensuring stable compatibility with the maximum 32GB FAT32 format TF card for reading and writing storage.
The module is equipped with 6 standard SPI pins (VCC, GND, MOSI, MISO, SCK, CS), which can quickly interface with various programmable master control boards. The circuit board size is 43mm×26mm, with 4 reserved installation fixing holes, making assembly secure and convenient. It is suitable for data recorders, audio playback projects, sensor data storage, intelligent device development, and student electronic DIY experiments.
kernel parameter
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Supports Micro SD cards and Micro SDHC cards (High Speed Cards)
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Onboard level shifting circuit, meaning the interface logic level can be 5V or 3.3V
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Power supply is 4.5V~5V, with an onboard 3.3V voltage regulator circuit
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Communication interface is a standard SPI interface
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Four M2 screw mounting holes for easy installation
We focus on three core product categories to meet diverse market demands:
1、Passive Components: We offer a comprehensive range of resistors, capacitors, inductors, and connectors, backed by stable stock and competitive pricing to support your continuous production needs.
2、Integrated Circuits (ICs) & Microcontrollers: Our portfolio features high-performance chips, including the ESP32 series, MCUs, and logic ICs. All components are sourced from authorized distributors to ensure guaranteed quality and authenticity.
3、PCB & PCBA Solutions: We provide complete supply chain support for printed circuit boards, ranging from prototype fabrication to mass production assembly, serving the IoT, consumer electronics, and industrial sectors.
4、Quality & Service Commitment
At Muren Technology, we prioritize authenticity and traceability. Every batch undergoes strict quality inspection with full lot traceability and customs declaration support. Whether you require samples, small-batch trials, or large-volume orders, our professional team ensures accurate delivery and long-term stable cooperation.
