0 votes 0 votes Which of the following is an invalid state in an $8$-$4$-$2$-$1$ Binary Coded Decimal counter $1$ $0$ $0$ $0$ $1$ $0$ $0$ $1$ $0$ $0$ $1$ $1$ $1$ $1$ $0$ $0$ Analog and Digital Electronics gate2014-ee-2 binary-code counter + – makhdoom ghaya asked Feb 11, 2017 recategorized Feb 15, 2017 by piyag476 makhdoom ghaya 9.4k points answer comment Share See all 0 reply Please log in or register to add a comment.