Semiconductor integrated circuit

Details Semiconductor integrated circuit Semiconductor integrated circuit

2007-11-13

2007-11-13

Perveen, Rehana (Department: 2116)

Electrical computers and digital processing systems: support

Synchronization of clock or timing signals, data, or pulses

Using delay

C713S400000, C713S500000, C713S501000, C327S149000, C327S150000, C327S156000, C327S157000, C327S291000, C327S293000, C327S299000, C365S189011, C365S189050, C365S191000, C365S194000

Reexamination Certificate

active

10768441

ABSTRACT:
A semiconductor integrated circuit is provided in which the timing margin for fetching data is prevented from being reduced even in the case where the duty ratio of a clock signal is different from 50%. The semiconductor integrated circuit includes: a clock input terminal for receiving a clock signal; a data input terminal for receiving a data signal; internal clock generating circuits for generating an internal clock signal which is switched at an intermediate timing between the i-th (i: an integer of 1 or larger) switch timing and the (i+1)th switch timing of the clock signal; and a latch circuit for latching the data signal synchronously with the internal clock signal. An internal clock signal which is switched at an intermediate timing between the i-th switch timing and the (i+1)th switch timing of the clock signal is generated, and the data signal is fetched synchronously with the internal clock signal.

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