DocumentCode :
2619440
Title :
BiCMOS ASIC for high performance systems
Author :
Gallia, J. ; Yoshino, T. ; Wang, I. ; Chau, K. ; Yee, A. ; Davis, H.
Author_Institution :
Texas Instrum. Inc., Dallas, TX, USA
fYear :
1990
fDate :
1-3 May 1990
Firstpage :
1991
Abstract :
The advantages of BiCMOS technology are discussed and illustrated by comparing the delay of BiCMOS and CMOS gates. High-speed fully static conditional-sum addition (CSA) logic adders designed using a 1-b CSA adder, a two-to-one multiplexer, and a BiCMOS inverter are described. The high drive capability of BICMOS minimizes the speed and area penalties that occur in longer word-length CSA adders using CMOS buffers. The significant performance improvement of BiCMOS over CMOS for dense-memory designs (especially in the word-line driver and sense-amp sections) is also discussed. The speed and high drive capability of BiCMOS logic is well suited to reducing the word-line delay, which can constitute 50-60% of the access time delay of large memory designs. Access time of memory blocks is also reduced by using bipolar sensing. The BiCMOS sense amp provides the ability to quickly sense small transitions on highly capacitive bit lines within large memory arrays. A 64-tap fixed coefficient FIR (finite impulse response) digital filter for a video image application designed using this gate array is examined
Keywords :
BIMOS integrated circuits; SRAM chips; adders; application specific integrated circuits; delays; digital filters; integrated memory circuits; logic arrays; BiCMOS gates; BiCMOS inverter; BiCMOS logic; BiCMOS sense amp; BiCMOS technology; CMOS buffers; CMOS gates; CSA adder; FIR digital filter; SRAM; access time delay; finite impulse response filter; gate array; memory arrays; multiplexer; static conditional-sum addition logic adders; video image application; word-line delay; word-line driver; Application specific integrated circuits; BiCMOS integrated circuits; CMOS logic circuits; CMOS technology; Delay effects; Digital filters; Finite impulse response filter; Logic design; Multiplexing; Pulse inverters;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Circuits and Systems, 1990., IEEE International Symposium on
Conference_Location :
New Orleans, LA
Type :
conf
DOI :
10.1109/ISCAS.1990.112120
Filename :
112120
Link To Document :
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