( ( Select the proper item or judge whether the statements are true (15%) ) 1. Which one is wrong? Sequential circuit has a feedback path > Flip-flop is edge triggered 3 Latch is transparent Fig. 1 is a positive edge triggered D flip-flop. ) 2. How many 64K-8 RAM chips are needed to provide a memory capacity of IM bytes? 01 02 38 16. ) 3. Which one is non-volatile memory? Flash memory SRAM 3 DRAM Registers. ) 4. In a ripple counter, all flip-flops use the same clock signal. ) 5. Programmable read-only memory (PROM) consists of a programmable AND array and a fixed OR array. ( ( (