AST2600A3-GP is a ASPEED Technology processing device.
This device provides the compute or control function for the system, with its interfaces and memory documented by the manufacturer.
This ordering code is specified at 624.
It is used in embedded control and signal processing, where the part has to keep its specification over the life of the equipment.
This code is specified for Function Integrated remote management processor and CPU Dual-core Arm Cortex-A7, up to 1.2 GHz.
The data sheet fixes the memory interface at 16-bit DDR4.
Its advantage is that the specification is published and stable, so the design does not depend on bench characterisation.