What is the difference between a revocable and irrevocable trust

The difference between a revocable and irrevocable trust would be; A revocable living trust becomes irrevocable when the grantor dies because he's no longer available to make changes to it. But a revocable trust can be designed to break into separate irrevocable trusts at the time of the grantor's death for the benefit of children or other beneficiaries.