MAX7315ATE+ datasheet by Maxim Integrated Products

MAX7315ATE+ Frequently Asked Questions (FAQs)

• What is the maximum current that can be sourced or sunk by the GPIO pins?
  The MAX7315ATE+ can source up to 20mA and sink up to 25mA per GPIO pin.
• How do I configure the GPIO pins as inputs or outputs?
  The GPIO pins can be configured as inputs or outputs using the GPIO Configuration Register (GCR). The GCR is a 16-bit register that defines the direction of each GPIO pin.
• What is the purpose of the internal pull-up resistors on the GPIO pins?
  The internal pull-up resistors on the GPIO pins are used to pull the pins high when they are configured as inputs. This helps to prevent the pins from floating and reduces noise susceptibility.
• Can the MAX7315ATE+ be used in a 5V system?
  Yes, the MAX7315ATE+ can be used in a 5V system. The device is 5V tolerant, meaning it can operate with a 5V supply voltage and can also drive 5V logic levels.
• How do I reset the MAX7315ATE+?
  The MAX7315ATE+ can be reset by asserting the RESET pin low for at least 100ns. This resets the device to its default state and clears all registers.