DS1845E-010 datasheet by Dallas Semiconductor

DS1845E-010 Frequently Asked Questions (FAQs)

• What is the recommended power-up sequence for the DS1845E-010?
  The recommended power-up sequence is to apply VCC first, followed by VEE, and then the logic inputs. This ensures proper device operation and prevents latch-up.
• How do I ensure reliable communication with the DS1845E-010 over the 1-Wire bus?
  To ensure reliable communication, use a pull-up resistor of 2.2 kΩ to 4.7 kΩ on the 1-Wire bus, and ensure that the bus is properly terminated. Also, follow the 1-Wire bus timing specifications and use a robust 1-Wire bus master device.
• What is the maximum cable length for the 1-Wire bus when using the DS1845E-010?
  The maximum cable length for the 1-Wire bus depends on the cable characteristics, but as a general rule, it should not exceed 100 meters. However, it's recommended to keep the cable length as short as possible to minimize signal attenuation and ensure reliable communication.
• Can I use the DS1845E-010 in a multi-master 1-Wire bus configuration?
  Yes, the DS1845E-010 can be used in a multi-master 1-Wire bus configuration, but it's essential to ensure that each master device follows the 1-Wire bus protocol and timing specifications to avoid bus conflicts and data corruption.
• How do I handle errors and retries when communicating with the DS1845E-010 over the 1-Wire bus?
  Implement a robust error-handling mechanism that includes retry mechanisms for data transmission and reception. Also, use the DS1845E-010's built-in error detection and correction mechanisms, such as CRC and parity checking, to ensure data integrity.