Topics for Exam 2

• BCD
• 7-segment display decoders including the special inputs (DEC, LT, RBI, BI/RBO)
• Latches (NAND and NOR, SC and Transparent-D)
• Flip-flops (JK, and D)
• Timing Diagrams with Memory Circuits
• Counting in binary
• Debouncing
• Edge Triggered versus Level Sensitive; Synchronous and Asynchronous Inputs
• Current, Ohms Law, Currents in TTL, and Unit Loads
• Diodes and LEDs
• Capacitors, Schmidt Inputs, and Booting Up; RC Time Constants
• Pulse Parameters and Clock Signals (period, frequency, pulse width, duty cycle, rise time)
• Set-up Time and Hold Time, and the problems they might cause
• Master-Slave Flip-flops
• Frequency Division
• MOD Counters (that is, divide frequency by a number other than a power of 2)
• Detecting Input Sequences (Combination Lock)
• Synchronizing Signals with Flip-flops
• Switching Circuit