"PLA with forward-conduction bipolar ""and"" array and I.sup.2 L ""OR"" array"
US4659947A · kind A · utility
7Cited by
6References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 26, 1984 |
| Grant date | Apr 21, 1987 |
| Priority date | — |
| Expiry date | Oct 26, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/17708
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An integrated programmable logic array formed within a single silicon chip comprises a combination of an NAND or AND gate array and an NOR or OR gate array. The NAND or AND gate array includes a plurality of bipolar transistors which are driven to operate in the forward direction by a plurality of input signals, and a plurality of Schottky barrier diodes provided between the collectors of the bipolar transistors and output signal lines. The NOR or OR gate array includes a plurality of other bipolar transistors which are driven to operate in the backward direction by a plurality of output signals from the NAND or AND gate array.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.