SD Card Module

SD cards are commonly paired with microcontrollers for storing and retrieving large volumes of data, making them ideal for applications like data logging or visual data processing. This micro SD card module simplifies the process of interfacing SD cards with microcontrollers.

Operating between 4.5V and 5.5V, the module features an onboard voltage regulator that steps down to 3.3V. Data communication between the SD card and microcontroller occurs via the SPI (Serial Peripheral Interface) communication protocol.

Key components of the module include a voltage regulator and a level shifter. The low-dropout regulator converts the input voltage (5V) to 3.3V, while the level shifter ensures proper voltage conversion between 5V and 3.3V logic levels.

Features & Specifications:

• Input Voltage: 3.3V/5V
• Onboard Voltage Regulator: 3.3V output
• Current Range: 0.2mA to 200mA
• Supported Cards: Micro SD up to 2GB, Micro SDHC up to 32GB
• Pinout: GND, VCC, MISO, MOSI, SCK, CS (SPI interface)
• Mounting Holes: 4 holes, 2.2mm diameter each
• Arduino Compatibility: Requires only 4 I/O pins
• Dimensions: 42mm x 25mm x 5mm