11. The increased low output level can cause troubles when TTL logic circuits are driven. 12. Many systems need circuits that allow external unsynchronized signals to enter synchronous logic circuits . 13. The charge is supplied either from a variable-voltage reversible-logic circuit . 14. Gate matrix layout is a specific style of CMOS VLSI layout for Boolean logic circuits . 15. Simple logic circuits interpret the relative timing to indicate which direction the wheel is rotating. 16. Williams'group also built a simple logic circuit that can address specific areas of nanoscale memory. 17. Digital sequential logic circuits are divided into asynchronous types. 18. The usual use of a clock signal is to synchronize transitions in sequential logic circuits . 19. There are several reasons for testing a logic circuit . 20. Ferranti had based both proposals on Philco's SB-100 transistor and their Transac logic circuit design.
