Title :
Regenerative feedback repeaters for programmable interconnections
Author :
Dobbelaere, Ivo ; Horowitz, Mark ; Gamal, Abbas El
Author_Institution :
Dept. of Electr. Eng., Stanford Univ., CA, USA
fDate :
11/1/1995 12:00:00 AM
Abstract :
The use of regenerative feedback repeaters to reduce the delay in programmable interconnections is described. A static, complementary regenerative feedback (CRF) repeater is proposed. This CRF repeater locally regenerates the new level for a fixed time after a transition has been detected. Design issues and limitations are discussed. It is shown that rising transitions can propagate faster than falling transitions through a chain of overdriven nMOS switches with CRF repeaters. Experimental results from a 1.2 μm CMOS implementation show that the loaded delay through 64 switches for static and dynamic repeaters can be reduced by a factor 1.4-2 over conventional repeaters
Keywords :
CMOS logic circuits; circuit feedback; delays; field programmable gate arrays; logic design; 1.2 micron; CMOS implementation; FPGA; delay reduction; falling transitions; overdriven nMOS switches; programmable interconnections; regenerative feedback repeaters; rising transitions; static complementary repeater; CMOS logic circuits; Feedback; Integrated circuit interconnections; Logic design; Logic programming; Multiprocessor interconnection networks; Programmable logic arrays; Propagation delay; Repeaters; Switches;
Journal_Title :
Solid-State Circuits, IEEE Journal of
