16-DIP Phantom Time Chip with parallel bus
The DS1315-5+ is a Phantom Time Chip from Analog Devices — a real-time clock that sits on the CPU bus as a memory-mapped peripheral, not a serial device. It presents time and date registers through a parallel interface, so the host reads and writes YY-MM-DD-dd and HH:MM:SS:hh (12/24 hr) directly without an I2C or SPI transaction layer. Leap-year compensation is built in, so firmware does not need to handle February 29th logic.
