The component "AT24C16C-SSHM-T" refers to a 16Kb (kilobit) EEPROM ( Electrical ly Erasable Programmable Read-Only Memory ) from Atmel, which is now a part of Microchip Technology. It is a part of the AT24 series and offers non-volatile storage with an I2C interface for Communication .
The "SSHM-T" part indicates the specific package type and temperature range of the chip. Based on this, the "SSHM" suffix refers to a Small-Outline Integrated Circuit (SOIC) package, and "T" represents the temperature range suitable for commercial applications (usually 0°C to 70°C).
Pin Function Specifications:
The AT24C16C-SSHM-T has a 8-pin SOIC (Small Outline Integrated Circuit) package, not 200 pins. Here are the detailed pin functions:
Pin Number Pin Name Pin Function Description 1 A0 Address Pin 0: Used to set the least significant bit of the I2C address. It is typically connected to ground. 2 A1 Address Pin 1: Used to set the second least significant bit of the I2C address. It is typically connected to ground. 3 A2 Address Pin 2: Used to set the third least significant bit of the I2C address. It is typically connected to ground. 4 GND Ground Pin: Provides the reference ground for the device. This pin must be connected to the system ground. 5 SDA Serial Data Pin: This is the data line for the I2C communication interface. Data is transmitted in serial form. 6 SCL Serial Clock Pin: This is the clock line for the I2C communication interface, synchronizing data transfer. 7 VCC Power Supply Pin: Provides the operating voltage for the device, typically 2.7V to 5.5V depending on the configuration. 8 WP Write Protect Pin: Used to enable or disable write protection on the EEPROM memory. When tied low, write operations are enabled.Circuit Principle Instructions:
The AT24C16C-SSHM-T operates as an I2C-based EEPROM that uses an I2C (Inter-Integrated Circuit) bus for communication with microcontrollers or other devices. The communication uses the SDA and SCL pins for data and clock signals.
When writing or reading data, the I2C master sends commands to select the memory location and either write data or read from it. The A0, A1, and A2 pins allow the user to set the I2C address, enabling multiple devices to share the same I2C bus, while the WP pin can be used to lock the device for writing, which is useful for security purposes.
Detailed FAQ:
Q: What is the AT24C16C-SSHM-T? A: The AT24C16C-SSHM-T is a 16Kb EEPROM memory chip from Microchip Technology that uses I2C communication to interface with other devices.
Q: How many pins does the AT24C16C-SSHM-T have? A: The AT24C16C-SSHM-T has 8 pins.
Q: What is the typical operating voltage for the AT24C16C-SSHM-T? A: The operating voltage for the AT24C16C-SSHM-T is typically between 2.7V and 5.5V.
Q: How do I communicate with the AT24C16C-SSHM-T? A: Communication with the AT24C16C-SSHM-T is done via the I2C bus using the SDA and SCL pins for data and clock signals.
Q: What does the WP pin do on the AT24C16C-SSHM-T? A: The WP pin is used to write protect the EEPROM, preventing write operations when tied low.
Q: Can I connect multiple AT24C16C-SSHM-T devices on the same I2C bus? A: Yes, you can connect multiple AT24C16C-SSHM-T devices on the same I2C bus by setting different addresses using the A0, A1, and A2 pins.
Q: How do I set the I2C address for the AT24C16C-SSHM-T? A: The I2C address is set using the A0, A1, and A2 pins. These pins are typically tied to ground for default addressing.
Q: What is the maximum data retention time for the AT24C16C-SSHM-T? A: The data retention time for the AT24C16C-SSHM-T is typically 100 years.
Q: What are the memory access times for the AT24C16C-SSHM-T? A: The AT24C16C-SSHM-T has a typical memory access time of 1ms for write operations and 0.6ms for read operations.
Q: Can I use the AT24C16C-SSHM-T with 3.3V logic systems? A: Yes, the AT24C16C-SSHM-T is compatible with 3.3V logic systems, but it can also operate at 5V logic levels.
Q: How do I perform a write operation to the AT24C16C-SSHM-T? A: A write operation is initiated by sending a start condition, followed by the I2C address, a write command, the memory location, and the data to be written.
Q: How do I perform a read operation from the AT24C16C-SSHM-T? A: A read operation involves sending a start condition, followed by the I2C address, a read command, and then receiving the data from the memory.
Q: What happens if the WP pin is tied to ground? A: If the WP pin is tied to ground, the EEPROM is write-protected, and no data can be written to the memory.
Q: How is the AT24C16C-SSHM-T powered? A: The AT24C16C-SSHM-T is powered by connecting the VCC pin to the appropriate power supply (between 2.7V and 5.5V).
Q: Can the AT24C16C-SSHM-T be used for non-volatile storage in embedded systems? A: Yes, the AT24C16C-SSHM-T is commonly used in embedded systems for storing configuration data or parameters.
Q: How many bytes of data can the AT24C16C-SSHM-T store? A: The AT24C16C-SSHM-T can store 2,048 bytes (16Kb) of data.
Q: What is the maximum clock frequency for I2C communication with the AT24C16C-SSHM-T? A: The maximum clock frequency for I2C communication with the AT24C16C-SSHM-T is 400kHz in fast mode.
Q: Can I use the AT24C16C-SSHM-T for real-time clock applications? A: While the AT24C16C-SSHM-T is non-volatile memory, it is not specifically designed for real-time clock applications.
Q: Is the AT24C16C-SSHM-T compatible with both 8-bit and 16-bit microcontrollers? A: Yes, the AT24C16C-SSHM-T is compatible with both 8-bit and 16-bit microcontrollers that support I2C communication.
Q: How can I reset the AT24C16C-SSHM-T? A: The AT24C16C-SSHM-T does not have a reset pin. You can reset the chip by powering it down and then powering it back up.
I hope this is helpful!
