LY-SD00101 Micro SD Card Module with SPI and SDIO Interface
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Prices updated: 13 Oct 2026
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About this product
Micro SD and TF card module that supports both SPI and SDIO read/write modes, for storing data logs or files on 3.3V microcontrollers. It uses 2.54mm pitch pins that fit standard headers and measures 33 × 28 × 8 mm with a 2.5 mm mounting hole. The listing recommends it for any 3.3V microcontroller and presents it for Arduino ARM-type boards.
Specifications
- Card type
- Micro SD / TF
- Interface modes
- SPI, SDIO
- Operating voltage
- 2.0 to 3.6 V (3.3 V recommended)
- Pin pitch
- 2.54 mm
- Dimensions
- 33 x 28 x 8 mm
- Mounting holes
- 1 x ⌀2.5 mm
Frequently asked questions
Can I connect it directly to a 5V Arduino Uno?
The module operates from 2.0 to 3.6V and is recommended for 3.3V devices. Connecting 5V logic directly can damage it, so use a level shifter on the data lines and power the module at 3.3V.
Which pins do I need to wire?
Connect power and ground, plus the SPI lines (MOSI, MISO, SCK) and a chip-select pin, following the labels on the module. Use the same labels when wiring SDIO mode.
