Hi,
How can i use a D flip flop 7474, to operate as a "memory" device?
example: a user store some password into a system(using d flipflop). now, if he enter the password correctly, he have access to the system, if he enter 3 times wrong, its lock.
for the 7474, clk signal must be connect to the clk input of chip only.
any suggestion?
The flipflop has a PR n CLR, should i make use of that?
How can i use a D flip flop 7474, to operate as a "memory" device?
example: a user store some password into a system(using d flipflop). now, if he enter the password correctly, he have access to the system, if he enter 3 times wrong, its lock.
for the 7474, clk signal must be connect to the clk input of chip only.
any suggestion?
The flipflop has a PR n CLR, should i make use of that?