128MB Micro SD Card

The 128MB Micro SD Card is a compact and reliable storage solution ideal for embedded systems, datalogging applications, bootloaders, and other microcontroller-based projects. Though small in capacity, it provides sufficient space for firmware storage, sensor data, and log files, making it perfect for lightweight and legacy applications requiring dependable flash memory.

Key Features:

• Compact Storage: 128MB capacity suitable for firmware, configuration files, and logs.
• Standard Micro SD Form Factor: Compatible with microSD card slots and adapters.
• Low Power Consumption: Ideal for battery-powered embedded systems and data acquisition.
• High Durability: Solid-state storage with shock and vibration resistance.
• Plug-and-Play: Easy to use with SD card libraries in Arduino, ESP32, Raspberry Pi, etc.

Technical Specifications:

• Capacity: 128 Megabytes (128MB)
• Form Factor: MicroSD
• File System Format: FAT/FAT16
• Read Speed: Up to 10MB/s (may vary by interface)
• Write Speed: Up to 6MB/s
• Operating Voltage: 2.7V to 3.6V
• Operating Temperature: -25°C to +85°C

Mechanical Specifications:

• Dimensions: 15mm x 11mm x 1mm
• Weight: Approx. 0.25g
• Pin Count: 8 pins (standard microSD interface)
• Connector Type: Push-pull or spring-loaded microSD slot

Mounting Options:

• MicroSD Socket: Compatible with SPI or SDIO interfaces.
• MicroSD to SD Adapter: Allows use in full-size SD slots or card readers.

Schematic Diagram, Connection, Wiring and Pinout:

• SPI Mode: Connect via CS, MOSI, MISO, and SCK to MCU (Arduino/ESP32).
• Wiring: Level shifter recommended for 5V systems (use logic converters or resistor dividers).
• Pinout: VCC, GND, CS, MOSI, MISO, SCK (SPI Mode)

Datasheet of 128MB Micro SD Card:

• Download MicroSD Card Datasheet (Generic PDF)

Applications:

• Embedded Systems: Store logs, sensor readings, and firmware updates.
• Data Loggers: Record temperature, humidity, GPS, or environmental data.
• Bootloaders: Store boot firmware for single-board computers.
• Retro Devices: Useful in older systems that support low-capacity SD cards.
• Microcontroller Projects: Arduino, ESP8266, STM32, and Raspberry Pi interfacing.

Equivalent:

• SanDisk 128MB: Standard capacity card compatible with SD SPI communication.
• Kingston 128MB: Reliable flash storage for legacy systems and MCU projects.
• Transcend 128MB: Low-capacity flash storage alternative.

Package Includes:

• 1 x TF 128MB Class 4 Microsd Card