Clock synchronous semiconductor device system and semiconductor

Details Clock synchronous semiconductor device system and semiconductor Clock synchronous semiconductor device system and semiconductor

1997-12-29

2000-06-13

Callahan, Tim

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Synchronizing

327161, 36518901, 365194, 375354, H03L 700

Patent

active

060753935

ABSTRACT:
A clock synchronous semiconductor device system and semiconductor devices used with the system have the read and write operations performed at a proper timing without increasing the types of clock or the amount of wiring. The system includes a plurality of semiconductor devices operated in synchronism with a clock. One of the semiconductor devices operates as a controller for producing a signal related to the controlling of the remaining semiconductor devices. A clock signal line for transmitting a clock to each semiconductor device is arranged in parallel with the other signal lines. A clock source is arranged at a position far from the controller not to cause any skew when the read data arrive at the controller from the remaining semiconductor devices. The timing at which each memory retrieves the write data from the controller is adjusted by an input timing adjusting circuit included in each memory, thereby permitting each memory to retrieve the write data at an optimum timing.

REFERENCES:
patent: 5706234 (1998-01-01), Pilch, Jr. et al.
patent: 5717729 (1998-02-01), Iknaian et al.
patent: 5822254 (1998-10-01), Koshikawa et al.
patent: 5835424 (1998-11-01), Kikukawa et al.

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