Semiconductor integrated circuit for fetching read data from...

Details Semiconductor integrated circuit for fetching read data from... Semiconductor integrated circuit for fetching read data from...

2011-03-15

2011-03-15

Ho, Hoai V (Department: 2827)

Static information storage and retrieval

Addressing

Sync/clocking

C365S193000, C365S233100, C365S233170, C365S236000

Reexamination Certificate

active

07907472

ABSTRACT:
A semiconductor integrated circuit (100) fetches read data from DDR-SDRAMs (110, 120) each operating in synchronization with a clock, and transfers the read data. The semiconductor integrated circuit (100) includes read buffers (104, 105) for fetching the read data from the DDR-SDRAMs (110, 120), and transferring the read data, latch timing control circuits (102, 103) for controlling respective latch timings with which the read buffers (104, 105) fetch the read data from the DDR-SDRAMs (110, 120) based on respective data strobe signals from the DDR-SDRAMs (110, 120), and a read timing control circuit (106) for controlling respective read timings with which the read buffers (104, 105) transfer the read data based on the latch timings of the latch timing control circuits (102, 103).

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