Maxim Integrated DS1307Z+T&R

The DS1307Z+T&R is a low-power, full binary-coded decimal (BCD) clock/calendar with 56 bytes of non-volatile static RAM and 2-wire serial interface. It provides seconds, minutes, hours, day, date, month, and year information, and operates in either 12-hour or 24-hour format. Functions: - Accurate timekeeping with a built-in crystal oscillator - Non-volatile memory for storing time and date information - Serial interface for communication with microcontrollers or other ICs - Battery backup to maintain timekeeping during power loss Applications: - Electronic devices requiring precise time and date synchronization - Embedded systems, industrial automation, and control applications - Consumer electronics such as digital cameras, appliances, and audio equipment Alternative parts: - DS3231MZ+TR - Highly accurate RTC with integrated temperature-compensated crystal oscillator - MCP7940N-I/MS - Low-power RTC with battery backup and I2C interface Embedded modules: The DS1307Z+T&R does not feature embedded modules, but it interfaces with microcontrollers or other ICs for additional functionality. Q&A: 1. Q: Can the DS1307Z+T&R operate without an external crystal oscillator? A: No, it requires an external 32.768kHz crystal for accurate timekeeping. 2. Q: What is the typical backup battery used for maintaining timekeeping during power loss? A: A 3V lithium coin cell battery, such as CR2032, is commonly used for backup power. 3. Q: Can the DS1307Z+T&R be used in automotive applications? A: It is not recommended for automotive applications due to its limited temperature range and sensitivity to vibration. 4. Q: What is the communication protocol used to interface with the DS1307Z+T&R? A: The IC uses the I2C (Inter-Integrated Circuit) serial communication protocol for interfacing with microcontrollers. 5. Q: Is the DS1307Z+T&R capable of generating alarms or interrupts? A: Yes, it has provisions for setting alarms based on specified date and time conditions, and can generate interrupt signals to notify the microcontroller.