Need a 32 bit Serial Counter IC

If you are not getting it in single pack, which I think should not be difficult.than take 16 JK flip flop ICs each have 4 output, You can stuff them on single board in sequential arrangement.

Thanks for ur suggestion sir...

But i need it in single IC...

If iam using these many IC's it will be very complecated for the circuit...

I hav to reduce as minimum as possible....

Have you considered using a microcontroller, such as something from the Microchip PIC range?

What maximum count rate do you need?

Hi sir....

Using micro controller will be complicated sir,

So, iam prefering to not to use...

And comming to count rate it may have any count rate but it will be good if it supports in MHZ frequency range....

Thanks.....

I think any single IC solution will be complicated. The nearest thing I could find is the HCTL-2032-SC from Avago (http://www.avagotech.com/docs/AV02-0096EN), but this and all the other single-package solutions I've found need to be interfaced to some kind of programmer for set-up and data access.

If you really want a single-IC solution, the smallest and easiest way would be to use a microcontroller (but your count rate would be limited - you might just about get up to a few MHz with careful device selection and programming).

I'd say your best (non-programmable) approach would be multiple chips. 2 off CD4060s will give you 28 bits. Cascade with a 4-bit counter. They're available in surface mount packages, so need not take up much PCB area.

Thanks for ur suggestion sir....

I have found it before itself but it giving parallel output count value.....

Instead of using it it is easy to use 74LV8154....

But i want serial count output....

Can u suggest using a controller as u said before please....

The PIC16F1516/7/8/9 series chips have a 16-bit counter which will count at up to about 16MHz. The overflow can be used to increment other internal memory locations to form a 32-bit counter.

If you haven't used microcontrollers before, you have a lot of learning to do. Start off by browsing round the Microchip site (here: http://www.microchip.com/en_US/family/8bit/index.html). There are also lots of other resources on the internet. Try this search: http://www.google.co.uk/search?q=pic+tutorial.

Good luck.

Thanks for ur suggestion sir...

But how can i use PIC as a counter....?

Can u please explain sir....

Link to datasheet:

http://ww1.microchip.com/downloads/en/DeviceDoc/41452A.pdf

Study section 18

sorry sir i can't use this....

Can u please suggest me another model plz.....

"sorry sir i can't use this...." - Why not?

I can't able to use microprocessor in my project sir....

Thanks...

SIr how can it act as counter sir....

ON Semi's MC14536 chip is a counter IC - it contains a binary number equal to the number of input logic-level transitions since it was reset. Did you retrieve the datasheet from the link I gave you to the DigiKey page for the part? I was merely describing a cute way to readout the exact count contained in a binary counter IC, even if you only have access to three pins on the chip: count and reset inputs, and overflow output.

Tell me, Ejaz484, what are you thinking of when you say counter? Are you thinking of a frequency-measuring device?

Yeah sir i have read the datasheet from ur link...

Sir iam asking on which pin i have to give my input clock pulses to be counted, and how can read the count value and on which pin i can get the count value...

Iam some confused about the decoder in that....

Thanks...

Oh, I see. You can think of the mc14536 as an n-bit counter, where the length n is set by pins 9-12 (see pin description, page 5). E.g., for 16 bits you would use all 1s (including the 8-bypass, pin 6). For 24 bits you'd also use all 1s, but set pin 6 low.

The input is on pin 3. To use this pin, pins 1,2,7,14 need to be logic zero (see the Function Table) to disable the internal oscillator and set and clear.

You need something intelligent to use my trick to readout the counter. First you connect in place of the input on pin 3, and you look at the output, pin 13. If it's high, 1/2 the counter capacity has already been used (if it's low the counter is less than half filled). You add pulses to the input one at a time, checking to see when pin 13 changes state. Then do the math as I wrote before.

What are you working on? If you're looking for something simple, low-power, and cheap, maybe to make in quantity (35 cents, qty 5k), this may be an answer. But you do need a computer or something smart to read it out. If the readout electronics has to be permanently attached, something simple like a Microchip PIC or TI 430-series micro-controller, then hey, probably you'll want to let the uC do the counting.

Sir by following the instructions u given can i read the count value continously?

Hah, that depends on what you mean continuously! It takes up to 32767 clock cycles for a 16-bit counter. What's wrong with a tiny 8-pin low-power microcontroller IC?

I mean if i want to read the count value after some time how can i get...

Means if i want to know how many clock cycles have been counter when i wish...

Is it possibile...?

I can't use micro controller bcoz i want an IC who's operating temperature is -55to 125Degree centigrate...

Thanks....

Things are not always available to your or my wish, Some effort is always needed in those cases.

you can cascade 8 PCs LS7490.

Sir iam waiting for ur suggestion for 32 bit binary counter IC...

In all seriousness, here it is, a Microchip PIC12F1840 (web page), sell-sheet. Only 8 pins, miniDIP package available, $1.28 in single pieces, 93-cents in volume, and Free Samples Available.

I don't know your maximum counting speed, so I selected a 32MHz uC, which is perhaps faster than you need. Here's a selection table to find other choices.

A simple application like this is the perfect place to quickly learn PIC programming.

As for the idea of using a PIC micro instead of a custom chip, many folks rightly think of these small controllers as the best way to make custom ICs. As an example, one "IC company," Elm Electronics, is really a seller of programmed PICs, with datasheets making them look like custom ICs. On their home page they say, "Since the mid-nineties we have been creating unique integrated circuits for the hobbyist and small business" - see, they call them "unique integrated circuits."

Take for example their ELM381 - 60Hz Long Interval Counter, which includes a software 26-bit divide-by-36,288,000 counter (for 7-day timing), and look at its datasheet. Looks like an IC, right? Not the exact IC you're looking for, but that's the point, you can program a PIC and make your own custom IC.

One last point, it's solutions like this that have killed the market for specialized chips like the one you're seeking. So, in conclusion, Ejaz484, as we say over here, ahem, get with the program!

Sir PIC is not the space qualified...

So i can;t use micro controller and PIC...

That's why iam asking about another IC....

Then (unless you commission the design and fabrication of a new IC) I believe you are constrained to using multiple ICs of smaller modulus.

There are plenty of space qualified micros. Oodles of them.

Can you tell me some manufacturers of space qualified Micro's? Are these crazy expensive?

Hi...

Is anyone familiar with using LS7366R(32 bit counter) IC please...?

Actually i can't able to read the count value stored in it's counter register...

can anyone help me please...?

Once again, you're back to using a programmable device - in this case for control and readout, rather than doing the counting.

Figures 13 and 14 of the datasheet show how to connect.