Factory direct selling Micro SD card module SPI interface TF card read and write card with level conversion chip

This module (Microsd Card Adapter) is a Micro SD card read and write module. Through the file system and the SPI interface driver, the single -chip microcomputer system can complete the files in the Microsd card for reading and writing.Arduino users can use the SD card program library that comes with Arduino ID to complete the initialization and reading of the card

For information, please copy Baidu Web Disk URL download: http://pan.baidu.com/s/1i3a9gxv

The characteristics of the module are as follows:

1. Support Micro SD card, Micro SDHC card (high -speed card)

2. Circuit level conversion circuit, that is, the interface level can be 5V or 3.3V

3. Power supply and power supply is 4.5V ~ 5.5V, board 3.3V voltage voltage circuit

4. The communication interface is the standard SPI interface

5.4 M2 screw positioning holes for easy installation

project

Minimum

Typical

Maximum

unit

Power supply voltage VCC

4.5

5

5.5

V

Current

0.2

80

200

ma

Interface level

3.3 or 5

V

Support card type

Micro SD card (

————

size

42x24x12

mm

weight

5

G

Control interface: a total of 6 pins (GND, VCC, MISO, MOSI, SCK, CS), GND is the ground, VCC is a power supply supply, MISO, MOSI, SCK are SPI bus, CS is the chip signal foot;

3.3V voltage voltage circuit: 3.3V of LDO voltage voltage output is the level conversion chip, Micro SD card power supply;

The level conversion circuit: The signal to the Micro SD card direction is converted to 3.3V, and the MISO signal that controls the interface direction of the Microsd card is also converted to 3.3V. Generally, the AVR single -chip microcomputer system can read the signal;

Micro SD card seat: It is a self -bouncing card seat, which is convenient for the card.

Position holes: 4 M2 screw positioning holes, and the pore diameter is 2.2mm, so that the module is easy to install positioning and realizes the combination of modules;