Interfacing ICs

Interfacing ICs:

8251 Block Diagram in Microprocessor : Fig. 14.37 shows the 8251 Block Diagram in Microprocessor. It includes …


8251 Serial Interface : Most of the microprocessors are designed for parallel communication. In parallel communication number …


8255 Pin Diagram : Fig. 14.1 shows the 8255 Pin Diagram of Microprocessor. 8255 Block Diagram: Fig. 14.2 shows …


8255 Programming and Operation : The 8255 Programming and Operation are follows Programming in Mode 0: The Ports A, B …


8257 Pin Diagram : Fig. 14.61 shows 8257 Pin Diagram. Data Bus (D0-D7) : These are bi-directional tri-state …


8259 Block Diagram : Fig. 14.71 shows the internal 8259 Block Diagram. It includes eight blocks : …


8279 Block Diagram : Fig. 14.84 shows the 8279 Block Diagram. It consists of four main sections CPU …


ADC 7109 Features : The ADC 7109 Features are namely, IC 7109 is a 12-bit dual slope A/D converter. It …


ADC0804 Family : The ADC0804 Family are ADC0803, ADC0804 and ADC0805 are CMOS 8-bit successive-approximation analog to …


ADC0808 Pin Diagram : The ADC0808 Pin Diagram and ADC 0809 are monolithic CMOS devices with an …


DAC0830 Digital to Analog Converter : The DAC0830 Digital to Analog Converter is an advanced CMOS 8-bit …


Features of 8251 Microcontroller : The features of Features of 8251 Microcontroller are namely, 1. The Intel 8251A is …


Features of 8255 Microprocessor : Features of 8255 Microprocessor – Here we see programmable peripheral interface (PPI), …


Features of 8257 DMA Controller : The Features of 8257 DMA Controller are follows, 1. It is a programmable; …


Features of 8259 Programmable Interrupt Controller : The Features of 8259 Programmable Interrupt Controller are 1. It can manage …


Features of Intel 8279 Programmable Keyboard Display Interface : Features of Intel 8279 Programmable Keyboard Display Interface: The Intel 8279 is a general purpose programmable …


IC 1408 DAC Pin Diagram : The IC 1408 DAC Pin Diagram is an 8 bit R/2R …


Interfacing 8251 with 8085 : Fig. 14.44 shows the Interfacing 8251 with 8085 in I/O mapped I/O …


Interfacing 8255 with 8086 Microprocessor : Fig. 14.17 shows the Interfacing 8255 with 8086 Microprocessor and Interfacing 8255 …


Interfacing 8259 with 8085 : Fig. 14.72 shows Interfacing 8259 with 8085 microprocessor system. Addressing of 8259A : The …


Interfacing of 8257 with 8085 : Fig. 14.68 shows the interfacing of 8257 with 8085 in I/O …


Interfacing of 8279 with 8085 : Interfacing of 8279 with 8085 in I/O Mapped  I/O: Fig. 14.98 shows the Interfacing of 8279 …


Operating Modes of 8257 : The Operating Modes of 8257 can be programmed to operate in following …


Operating Modes of 8279 : The Operating Modes of 8279 provides 3 basic input modes : Scanned keyboard Scanned …


Pin Diagram of 8251 Microcontroller : Fig. 14.36 shows the Pin Diagram of 8251 Microcontroller. Data Bus : …


Pin Diagram of 8279 : Fig. 14.83 shows functional and pin diagram of 8279. It is a …


Programmable DMA Controller 8257 : In microprocessor based systems data transfer can be controlled by either software …


Programming 8259 : The Programming 8259 requires two types of command words. Initialization Command Words (ICWs) and …


Sample and Hold Circuit : Sample and Hold Circuit: Four basic sample and hold circuit are shown in Fig. 14.141. In …


Sample and Hold IC : Sample and Hold IC – For accurate analog to digital conversion the …


Types of Data Communication of 8251 : We know that, 8251A is Universal Synchronous, Asynchronous, Receiver, and …