The part number you provided, "MX25L6433FM2I-08G," is associated with a Winbond chip, specifically the MX25L6433FM2I. This is a 64Mb (8MB) Serial Flash Memory with a SOIC-8 package (commonly used for flash memory storage in embedded systems).
Let me explain the pin functions, packaging, and provide an example FAQ below:
1. Detailed Pin Function Specifications
Chip Overview:
Model: MX25L6433FM2I-08G Package: SOIC-8 Total Pins: 8 pins Type: Serial Flash Memory, which supports SPI (Serial Peripheral interface ) communication. Pinout (SOIC-8 package):Here are the pin functions for the MX25L6433FM2I-08G in the SOIC-8 package.
Pin Number Pin Name Pin Function Description 1 CS# Chip Select, active low. This pin selects the chip for communication with the controller. If this pin is high, the chip is not selected. 2 DO Data Output. Used for SPI data transmission from the flash memory to the controller. 3 WP# Write Protect, active low. When pulled low, it disables write operations to the memory. 4 GND Ground. Provides the common ground for the chip and system. 5 VCC Power Supply (3.3V or 1.8V depending on configuration). This provides the required voltage to the chip. 6 DI Data Input. Used for SPI data transmission from the controller to the flash memory. 7 SCK Serial Clock . The clock signal for SPI communication. This pin receives the clock pulse from the controller for synchronization. 8 SO Serial Output. Used for the SPI data transfer from the memory back to the controller, in some specific SPI modes.2. Package Information
Package Type: SOIC-8 Total Pins: 8 Pin Spacing: Typically, SOIC-8 has a 1.27mm pin pitch. Dimensions: The package is small, with a body size of approximately 5mm x 6.4mm.3. Function of All Pins (In Detail)
CS#: Chip select pin, which tells the microcontroller when to communicate with the flash memory. It must be driven low to initiate communication. DO (Data Output): This is used in SPI mode to send data from the flash memory to the microcontroller. WP# (Write Protect): This pin can be used to prevent writes to the memory. When set low, writing to the memory is disabled. GND: Standard ground connection to complete the electrical circuit. VCC: Power supply input to the memory. Typically 3.3V or 1.8V depending on the variant. DI (Data Input): This is the data line used by the microcontroller to send data to the memory. SCK (Serial Clock): The clock signal that controls the data flow in SPI communication. SO (Serial Output): In certain SPI modes, this pin is used to transfer data from the flash memory back to the microcontroller.4. 20 FAQ (Frequently Asked Questions)
Q1: What is the maximum clock speed supported by MX25L6433FM2I-08G?A1: The MX25L6433FM2I-08G supports SPI clock speeds up to 133 MHz, depending on the mode used.
Q2: Can I use the MX25L6433FM2I-08G with both 3.3V and 1.8V systems?A2: Yes, the chip supports both 3.3V and 1.8V systems, with the voltage determined by the system requirements.
Q3: Is the write protection pin WP# functional when the device is powered off?A3: No, the WP# pin only works when the device is powered on and active.
Q4: What happens if I leave the CS# pin high during communication?A4: The chip will not be selected, and no communication will occur with the device.
Q5: Can I use the MX25L6433FM2I-08G in low-power applications?A5: Yes, the MX25L6433FM2I-08G has low-power consumption and is ideal for battery-operated devices.
Q6: Does the MX25L6433FM2I-08G support the Quad SPI interface?A6: Yes, the chip supports Quad SPI for faster data transfer.
Q7: How is the SPI mode configured?A7: The SPI mode is configured based on the CS#, SCK, DI, and DO pins and the clock polarity and phase set by the controller.
Q8: What is the capacity of the MX25L6433FM2I-08G?A8: The chip has a storage capacity of 64Mb (8MB).
Q9: Can I use the MX25L6433FM2I-08G for booting purposes?A9: Yes, the flash memory can be used for boot storage in embedded systems.
Q10: What kind of data retention does the MX25L6433FM2I-08G offer?A10: The chip offers data retention of up to 20 years at 25°C.
Q11: Is the chip compatible with all SPI-compatible controllers?A11: Yes, as long as the controller supports SPI communication, it should work with the MX25L6433FM2I-08G.
Q12: What is the maximum number of write/erase cycles supported by the chip?A12: The chip supports up to 100,000 program/erase cycles.
Q13: How do I erase data on the MX25L6433FM2I-08G?A13: Data can be erased using the standard SPI commands, such as the "Bulk Erase" or "Sector Erase" command.
Q14: Does the MX25L6433FM2I-08G have protection against power loss during write operations?A14: Yes, it includes features like sector protection and write protection to prevent data corruption during unexpected power loss.
Q15: What are the typical applications for the MX25L6433FM2I-08G?A15: Typical applications include boot storage, configuration settings storage, and firmware storage in embedded systems.
Q16: How do I configure the SCK pin for high-speed communication?A16: Set the appropriate clock polarity and phase on the SPI controller to match the requirements of the MX25L6433FM2I-08G.
Q17: Is the chip compatible with both read and write operations?A17: Yes, the chip supports both read and write operations via SPI communication.
Q18: Can I interface the chip with a microcontroller directly?A18: Yes, the chip is designed for direct interface with microcontrollers through the SPI interface.
Q19: How can I protect data from being written to the chip?A19: You can use the WP# pin to prevent write operations to the chip.
Q20: What happens if the power supply to the MX25L6433FM2I-08G is unstable?A20: Unstable power may result in data corruption or failure to read/write properly. It’s recommended to ensure stable voltage supply to the device.
This information provides an overview of the MX25L6433FM2I-08G, its pins, and how to use it effectively. Let me know if you need further clarification or additional details!