MT25QL128ABA1ESE-0SIT Detailed explanation of pin function specifications and circuit principle instructions

The part number "MT25QL128ABA1ESE-0SIT" is a product from Micron Technology, specifically a 128-Mbit serial NOR Flash memory device. It is part of the MT25Q series, which belongs to Micron's NOR Flash family, offering high-speed, high-density memory solutions for embedded applications.

Package Type and Pin Count

The model "MT25QL128ABA1ESE-0SIT" typically comes in a WSON (Wide Small Outline No-lead) package, a popular surface-mount technology package. The pin count can vary, but for this device, it is usually 8 pins.

Pin Function Table

Here is a detailed pin function description for the 8-pin WSON package of the "MT25QL128ABA1ESE-0SIT" model:

Pin Number Pin Name Pin Type Pin Function 1 VCC Power Power supply (3.3V) for the NOR Flash device. 2 GND Ground Ground connection. 3 SO (Serial Output) I/O Serial output pin for data read. 4 SI (Serial Input) I/O Serial input pin for data write. 5 WP# (Write Protect) Input Write protect input, logic-low disables write. 6 HOLD# Input Hold input to pause the serial communication. 7 SCLK (Serial Clock ) Input Clock signal input for serial communication. 8 NC No connect No internal connection (NC).

Explanation of Pin Functions

VCC (Pin 1): This is the power supply pin, typically providing 3.3V for operation. GND (Pin 2): This is the ground pin, providing the reference voltage for the device. SO (Pin 3): This is the Serial Output pin, used to send data from the Flash memory to the processor. SI (Pin 4): The Serial Input pin is used to input data to the Flash memory from the processor. WP# (Pin 5): This is the Write Protect pin, which when held low, enables write protection. When high, the device is write-enabled. HOLD# (Pin 6): The Hold pin is used to pause the communication, typically used to stop communication without resetting the device. SCLK (Pin 7): The Serial Clock pin provides the clock signal for serial communication. The clock drives the data transfer timing. NC (Pin 8): No connect. This pin is not internally connected, and it does not affect the function of the device.

Frequently Asked Questions (FAQ) for MT25QL128ABA1ESE-0SIT

1. What is the operating voltage of the MT25QL128ABA1ESE-0SIT? The MT25QL128ABA1ESE-0SIT operates at 3.3V for the VCC pin.

2. How many pins are there in the package of MT25QL128ABA1ESE-0SIT? This device typically comes in an 8-pin WSON package.

3. What does the WP# pin do on the MT25QL128ABA1ESE-0SIT? The WP# pin is the Write Protect pin, which disables write operations when held low.

4. Can the MT25QL128ABA1ESE-0SIT operate with 5V? No, this device is designed to operate at 3.3V, and applying 5V may damage the device.

5. What type of memory does the MT25QL128ABA1ESE-0SIT use? It is a 128-Mbit serial NOR Flash memory.

6. What is the function of the HOLD# pin in the MT25QL128ABA1ESE-0SIT? The HOLD# pin pauses the serial communication temporarily.

7. What happens if I connect the NC pin (Pin 8)? The NC pin has no connection to the internal circuitry and does not affect the device’s operation.

8. How can I write data to the MT25QL128ABA1ESE-0SIT? Data is written to the device via the SI pin (Serial Input) while the appropriate clock signal is provided through the SCLK pin.

9. How can I read data from the MT25QL128ABA1ESE-0SIT? Data is read from the device through the SO pin (Serial Output) by sending the appropriate commands via the SI pin and clocking with the SCLK pin.

10. What should I do if I want to disable write protection on the MT25QL128ABA1ESE-0SIT? To disable write protection, set the WP# pin to high (logic high).

11. Is the MT25QL128ABA1ESE-0SIT compatible with 1.8V logic levels? No, it is not recommended to use this device with 1.8V logic levels. It operates at 3.3V.

12. Can I use the MT25QL128ABA1ESE-0SIT in high-speed applications? Yes, the MT25QL128ABA1ESE-0SIT is designed for high-speed serial communication, supporting clock speeds up to 100MHz.

13. How do I reset the MT25QL128ABA1ESE-0SIT? The device can be reset using a soft reset command sent via the serial interface .

14. What is the maximum clock speed supported by the MT25QL128ABA1ESE-0SIT? This device supports up to 100MHz clock speed for serial communication.

15. Is there any special handling required for the MT25QL128ABA1ESE-0SIT during assembly? It should be handled as any standard surface-mount component. Proper ESD precautions should be followed.

16. How do I handle hold-off during communication? Use the HOLD# pin to pause serial communication if necessary.

17. What is the data width for reads and writes? The MT25QL128ABA1ESE-0SIT communicates serially, with a data width of 1 bit per clock cycle.

18. Does the MT25QL128ABA1ESE-0SIT support quad SPI? Yes, this device supports Quad SPI (QSPI) for high-speed data transfer.

19. Can I daisy-chain multiple MT25QL128ABA1ESE-0SIT devices? Yes, multiple devices can be connected in a daisy-chain configuration using a shared SCLK and SPI protocol.

20. How do I use the MT25QL128ABA1ESE-0SIT in embedded systems? The device can be integrated into embedded systems for non-volatile storage, including boot code storage, firmware, and other applications requiring reliable storage.

This detailed explanation should cover the necessary pin functions, their specifications, and answers to the common FAQs about the MT25QL128ABA1ESE-0SIT device.