Table of Contents
What is the purpose of CLK INH pin?
CLK INH can be wired to GND to save a pin on the microcontroller. Unused inputs pins should be grounded as well. Multiple 74HC165 ICs can be daisy chained by wiring the serial-out pin 9 (QH) to pin 10 (SER) of the succeeding IC allowing us to tie multiple 74165 ICs together that can be controlled using only 3 pins.
What is parallel load shift register?
Parallel load means to load all flip-flops of a register at one time. Serial load means to load the flip-flop of a register one bit at a time. The number of clock pulses required to shift all bits of a register completely in or completely out of the register is equal to the number of flip-flops in the register.
What is shift register in DLD?
Shift Register is a group of flip flops used to store multiple bits of data. The bits stored in such registers can be made to move within the registers and in/out of the registers by applying clock pulses. An n-bit shift register can be formed by connecting n flip-flops where each flip flop stores a single bit of data.
What is parallel in parallel-out shift register?
Parallel-in to Parallel-out (PIPO) Shift Register The data is presented in a parallel format to the parallel input pins PA to PD and then transferred together directly to their respective output pins QA to QD by the same clock pulse. Then one clock pulse loads and unloads the register.
What is inhibit clock?
Clocking is inhibited when either of the clock inputs are held high, holding either input low enables the other clock input. This will allow the system clock to be free running and the register stopped on command with the other clock input.
What is CD4017 used for?
CD4017 is used for low range counting applications. It can count from 0 to 10 (the decade count). The circuit designed by using this ic will save board space and also time required to design the circuit. CD4017 is as ‘Johnson 10 stage decade counter’.
What is 74LS194?
The 74LS194 bidirectional shift register is designed to incorporate virtually all of the features a system designer may want in a shift register; they feature parallel inputs, parallel outputs, right-shift and left-shift serial inputs, operating-mode-control inputs, and a direct overriding clear line.
What is 74HC32?
The 74HC32 is a 14 Pin Quad 2-Input OR Gate IC. The 74HC32 provides four independent 2-input OR gates with standard push-pull outputs. The device is designed for operation with a power supply range of 2.0V to 6.0V. Inputs include clamp diodes.
What is ic7432?
IC 7432 is a logic gate IC which consist of four OR Gates. The OR gate performs logical OR operation. The OR gates come in form of DIP package ICs. Each gate has three terminal two inputs and one output. The ICs are made by CMOS, TTL technology.
Which is the fastest shift register?
A PIPO register (parallel in, parallel out) is very fast – an output is given within a single clock pulse.