Latch - introductio to microprocessors , Electrical Engineering

Assignment Help:

Latch

A 8 bit  latch comprises of transparent latch D flip  flop. It is commonly  used  to interface output  device with  microprocessor. A typical example of such 8 bit  latch 74LS373 is shown in figure.

The devices  includes  eight  D latches with tri  buffers  only on eis shown in figure for clarity 8 input lines ( ID to 8D)  are connected to data bus and 8  output  lines  to output devices. The  enable signal is connected to clock ( LK). The  enable signal  is actives  high,  when it goes high data are latched from data bus. The  output  control  signal  is active low and  it enables the tri state buffers to output  data to output  devices.

The concept  of interfacing microprocessor with  output  device will be one  more clear after  reading chapter7.


Related Discussions:- Latch - introductio to microprocessors

Rst restart instructions , RST Restart Instructions Restart instructio...

RST Restart Instructions Restart instructions  are one byte call instructions. Called location for each restart instruction is  predefined on page 0 ( read only memory). They

What is an oscillator and show the advantages of oscillators, Q. What is an...

Q. What is an oscillator? Discuss the advantages of Oscillators ? An oscillator is a system consisting of active and passive circuit elements to produce a sinusoidal or other r

Explain the bidirectional shift registers, Explain the Bidirectional Shift ...

Explain the Bidirectional Shift Registers? A Reversible or A Bidirectional shift register is one in which the data can be shift either left or right. D flip-flops are used by

Basic operation of p-channel enhancement mosfet, Q. Basic Operation of  P-...

Q. Basic Operation of  P-channel enhancement MOSFET? In the fabrication of a p-channel depletion field-effect transistor, the gate is insulated from the channel. Therefore, the

Active-mode npn transistors in circuits, Active-mode NPN transistors in cir...

Active-mode NPN transistors in circuits Figure:  Structure and use of NPN transistor. Arrow according to schematic. The figure opposite is a schematic presentation

Clc filter, CLC or π Filter The above diagram displays CLC or π ty...

CLC or π Filter The above diagram displays CLC or π type filter, which mainly contains a capacitor filter, followed through LC section. This filter offers a quite smooth o

Prepayment meters, Prepayment Meters Usage of prepayment meters will e...

Prepayment Meters Usage of prepayment meters will extensively improve the revenue collection of the utilities. There are a number of ways in that prepayment assures revenue pr

VLSI, Simplify using k-map f(A,B,C,D)=?M(4,6,10,12,13,15) Using behavioral ...

Simplify using k-map f(A,B,C,D)=?M(4,6,10,12,13,15) Using behavioral modeling in xilinx VHDL

.energy, units of potential energy

units of potential energy

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd