DS1307N in DS3231 / DS1307 RTC Family
The DS1307N is a part of the legacy DS1307 real-time clock family originally developed by Maxim Integrated (now Analog Devices). This 8-pin DIP component functions as a low-power, full binary-coded decimal clock/calendar with 56 bytes of nonvolatile SRAM. It communicates via an I2C serial interface and provides reliable timekeeping of seconds, minutes, hours, day, date, month, and year. It is widely utilized in legacy embedded systems requiring basic timekeeping with an external 32.768kHz crystal.
Variants in This Sub-Family
The DS1307N specifically refers to the plastic dual-in-line package (PDIP) version of the DS1307 series. While the core silicon remains consistent across the family, variants like the DS1307Z utilize SOIC packaging for surface-mount applications. The '+' suffix in modern ordering codes denotes lead-free (RoHS) compliance. Performance differences across these variants are negligible, focusing primarily on thermal dissipation characteristics and physical mounting requirements for different PCB assembly processes.
