This paper describes the asynchronous device features of PCA-1, which is a first VLSI realizing Plastic Cell Architecture (PCA). PCA is an autonomously reconfigurable hardware architecture that consists of a programmable logic layer and a network of built-in facilities. To realize run-time generation and deletion of variable grained circuit objects, the circuits on the logic layer are programmed as self-timed circuits using Look-Up Tables (LUTs). The built-in facilities of PCA-1 are also designed as self-timed circuits to enhance the scalability and to minimize the power consumption. The LSI chip was completed successfully, and the experimental results are mentioned.