we would like to know that if ADM1066 input/output pins are capable of doing multi-tasks (sequence, monitoring, and margin) or it can only do single task.
Or any suggestion for this applcaiton
Yes the inputs and the outputs are capable of multitasking. So while running a sequence you will be able to monitor the input channels for faults and voltage telemetry. You will also be able to margin at the same time, but ADM1066 only supports open-loop margining.