How do you use the decade counter in 4017?

How do you use the decade counter in 4017?

Whenever a clock pulse is received at the clock input of the IC 4017 counter, the counter increments the count and activates the corresponding output PIN. When the count is zero, PIN-3 is HIGH, which means LED-1 will be ON and all the other LEDs are OFF.

How many output pins are present in 4017 IC decade counter?

When this pin is high the 4017 will not advance to the next out put but the reset pin is still active. The 4017 has 11 outputs. There are the regular 10 outputs and a carry out that outputs a pulse when 10 is the current high output and a pulse on the clock pin is received.

What is a 4017 decade counter?

The CD4017 is a CMOS Decade counter IC. 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’.

Which pin enables or disables the counter?

Pin 2: This is the enable pin for counter 1. The counter 1 circuit will receive the clock inputs only if this pin is set to HIGH. Otherwise, it retains its previous state even if any clock pulse is provided.

How do you make a decade counter?

A BCD counter can count 0000, 0001, 0010, 1000, 1001, 1010, 1011, 1110, 1111, 0000, and 0001 and so on. A 4 bit binary counter will act as decade counter by skipping any six outputs out of the 16 (24) outputs. There are some available ICs for decade counters which we can readily use in our circuit, like 74LS90.

Which pins are for TxD and RxD in PIC 18 microcontroller?

Pins 10 to 17 − These pins are known as Port 3. This port serves some functions like interrupts, timer input, control signals, serial communication signals RxD and TxD, etc. Pins 18 & 19 − These pins are used for interfacing an external crystal to get the system clock.

What is the OE pin?

Output Enable or OE pin on many digital logic ICs or some digital driver ICs is used to make output enable/disable…if this pin is in its active state then the content of internal latches/gates of that particular IC is reflected on the pins..by keeping this OE pin in its inactive state the ouputs are tristated/high …

Which pin is an active low pin?

For an active high pin, you connect it to your HIGH voltage (usually 3.3V/5V). For example, let’s say you have a shift register that has a chip enable pin, CE. If you see the CE pin anywhere in the datasheet with a line over it like this, CE, then that pin is active-low.

What is 4-bit decade counter?

The decade counter is a simple 4-bit binary counter with 4 outputs- QA, QB, QC, QD. Once the count reaches counting 10, then it resets all the flip-flops with a binary output 0(0000) each time and starts the counting cycle again. The reset pins R1, R2, R3, and R4 are used to set and reset the IC 7490.

Which port pin is used for RxD?

The 8051 has two pins that are used specifically for transferring and receiving data serially. These two pins are called TXD and RXD and are part of the Port-3 group (Port-3.0 and Port-3.1). Pin 11 of the 8051 is assigned to TXD and pin 10 is designated as RXD.

What is CE and OE?

CE (Chip Enable) is a memory select signal and the memory is selected when it is set at low level. This is used to assign a specific address by adding an address-decoded signal. OE (Output Enable) is an output enable signal and read data is output from a data pin when it is set at low level.