NVRAM (Non Volatile Random Access Memory): NVRAM (Non Volatile Random Access Memory)- It is Non Volatile Ram. It created by the combination of a static RAM and an electrically erasable PROM (EEPROM) in the same…

EEPROM (Electrically Erasable Programmable Read Only Memory): Electrically Erasable Programmable Read Only Memory (EEPROM) also use MOS circuitry very similar to that of EPROM. Data is stored as charge or no charge on an insulated…

Erasable Programmable Read Only Memory (EPROM): Erasable Programmable Read Only Memory (EPROM) use MOS circuitry. They store 1s and 0s as a packet of charge in a buried layer of the IC chip. EPROMs can…

Programmable Read Only Memory (PROM): Fig. 3.71 shows four byte Programmable Read Only Memory (PROM). It has diodes in every bit position; therefore, the output is initially all 0s. Each diode, however has a fusible…

ROM Memory: It is a read only memory. We can't write data in this ROM Memory. It is non-volatile memory i.e. it can hold data even if power is turned off. Generally, Read Only Memory…

What is Semiconductor Memory?: What is Semiconductor Memory? - Memories are made up of registers. Each register in the memory is one storage location. Each location is identified by an address. The number of storage…

Sequence Generator in Digital Electronics: A Sequence Generator in Digital Electronics which generates a prescribed sequence of bits, in synchronism with a clock, is referred to as a sequence generator. Fig. 3.58 shows the basic…

Sequential Circuits: There are many applications in which digital outputs are required to be generated in accordance with the sequence in which the input signals are received. This requirement cannot be satisfied using a combinational…

BCD Subtraction: Addition of signed BCD numbers can be performed by using 9's or 10's complement methods. A negative BCD number can be expressed by taking the 9's or 10's complement. Let us see BCD…