CAT24C512WI-GT3 Detailed explanation of pin function specifications and circuit principle instructions
The CAT24C512WI-GT3 is a part of the Catalyst (ON Semiconductor) product line. It is a serial EEPROM with a 512Kbit (64KB) memory capacity and uses a WSON-8 package, which is a small, surface-mount type.
Here is a breakdown of the requested information, including pin functions, specifications, and a detailed FAQ section. The CAT24C512WI-GT3 is housed in an 8-pin package, and I'll provide the necessary pin details in the following format:
Pin Function Specifications and Circuit Principle Instructions
Pin Number Pin Name Pin Function Description 1 VSS Ground: This is the ground pin. All signals are referenced to this pin. 2 SDA Serial Data: This is the data input/output pin. It is used for data transfer in a bidirectional I2C interface . 3 SCL Serial Clock : This is the clock signal used to synchronize data transfers on the SDA pin. 4 WP Write Protect: This pin, when pulled low, disables write protection for the EEPROM. Otherwise, writes are disabled. 5 A0 Address Bit 0: This pin is part of the 16-bit address, used to select which device is being accessed in multi-device configurations. 6 A1 Address Bit 1: This pin is used similarly to A0 for further address selection in multi-device setups. 7 A2 Address Bit 2: This pin completes the address selection, forming part of the device address when accessing data. 8 VCC Power Supply: This is the power pin. Typically connected to a +3.3V or +5V power source.Pin Function List
VSS (Ground Pin) This pin is the electrical reference point for the device. It should be connected to the ground plane in your circuit. SDA (Serial Data) This pin is used to transfer data in and out of the EEPROM. It is a bidirectional data line that communicates over the I2C bus protocol. It needs to be connected to the I2C master data line. SCL (Serial Clock) This pin is used to generate the clock signal for the I2C data transfer. It is typically connected to the clock line of the I2C master. WP (Write Protect) A low level on this pin disables writing to the memory, making the device read-only. It should be connected to a pull-up resistor or directly to VCC if write protection is not needed. A0 (Address Pin 0) This pin helps form the 16-bit device address. It must be connected to VCC or GND to select a specific address if multiple devices are used. A1 (Address Pin 1) This is the second address pin used to select the device address. It works in combination with A0 and A2. A2 (Address Pin 2) This pin is part of the address selection and works with A0 and A1 for multi-device configurations. VCC (Power Supply Pin) This pin provides the necessary voltage for the EEPROM. It is typically connected to a regulated +3.3V or +5V power supply.FAQ Section
What is the CAT24C512WI-GT3? The CAT24C512WI-GT3 is a 512Kbit (64KB) EEPROM with I2C interface, designed for data storage with a WSON-8 surface mount package. What kind of package does the CAT24C512WI-GT3 come in? The device comes in an 8-pin WSON-8 package, suitable for surface-mount applications. What is the voltage range for VCC? The VCC pin typically requires a voltage of 3.3V to 5V for proper operation of the CAT24C512WI-GT3. How do I interface the CAT24C512WI-GT3 to a microcontroller? The SDA and SCL pins are used for I2C communication. Connect the SDA to the microcontroller's I2C data line and the SCL to the clock line. What is the maximum clock speed for the I2C interface? The CAT24C512WI-GT3 supports I2C standard mode with a clock speed of up to 400kHz. Can I use multiple CAT24C512WI-GT3 devices on the same I2C bus? Yes, you can use multiple devices by configuring the A0, A1, and A2 address pins to different states to assign each device a unique address. What is the write protection feature? The WP pin can be used to prevent write operations when pulled low. This is useful to ensure data integrity in critical applications. What is the data retention time for this device? The CAT24C512WI-GT3 provides data retention of up to 100 years, making it suitable for long-term data storage. How do I write data to the CAT24C512WI-GT3? Data is written to the device via the I2C interface. You must first send the correct write command and then send the data to be written.How do I read data from the CAT24C512WI-GT3?
Data is read from the device by sending a read command over the I2C interface and then receiving the data from the SDA pin.What is the memory size of the CAT24C512WI-GT3?
The CAT24C512WI-GT3 has 512Kbits of memory, which equals 64KB.What is the access time of the device?
The access time for this EEPROM is typically 400ns.Is there a power-down mode for this device?
Yes, the CAT24C512WI-GT3 supports low-power operation when not actively reading or writing data.Can I read and write to the CAT24C512WI-GT3 simultaneously?
No, the EEPROM uses a single I2C bus for both reading and writing, and operations are sequential.How do I reset the device?
To reset the device, simply power cycle it. There is no specific reset pin.What happens if I write more data than the EEPROM can hold?
If more data is written than the EEPROM’s capacity, the device will overwrite the existing data from the beginning.What is the maximum number of write cycles?
The CAT24C512WI-GT3 supports up to 1 million write cycles per memory cell.Can I use the CAT24C512WI-GT3 in automotive applications?
Yes, the CAT24C512WI-GT3 is suitable for industrial and automotive applications due to its wide operating temperature range.What happens if I connect the WP pin to GND?
If the WP pin is connected to GND, write protection is disabled, allowing both read and write operations.What is the typical current consumption of the CAT24C512WI-GT3?
The typical current consumption is around 1mA during read operations, and write operations consume slightly more current.