| 摘要 |
A dynamic on-die termination on respective byte lines is provided to improve signal quality for interconnecting integrated circuits with each other by matching impedances to minimize signal reflection. Plural integrated circuits(110,120-A,120-N) are interconnected with each other. An ODT(On-Die Termination) control logic(112) independently programs ODT values for the respective ICs. The ODT value specifies an amount of a termination resistance. The IC includes plural DRAMs integrated in a memory system(100). The ODT control logic includes a DRAM(Dynamic Random Access Memory) ID determining logic and a DRAM ID programming logic. The DRAM ID determining logic determines the DRAM IDs for the respective DRAMs, which correspond to a length of a byte line. The DRAM ID programming logic programs the determined DRAM ID in respective DRAM registers in the memory system.
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