chips to send out data serially

[Raveesh]

Hi,

Is there any standard chips wherein I can burn some 8 or 16 bits information, and I want it send that information whenever I need ..?


I cant go with micro controller becoz my project BOM cost will go up ..

regards
Ravee

 

[seadolphine2000]

To store information, you need a flash or EEPROM and, these memories have standard protocols (SPI or I2C). A microcontroller can communicate with these memories easily.
To implement these protocols with sequential or combinational logic, I think, it's impossible.
You can find controllers as cheap as $1
microcontroller - Google Search

If you want to send information serially, a Shift Register can do it for you.
http://zefir.if.uj.edu.pl/pracownia/74165.pdf

 

[Raveesh]

Thanks ..

There are single wire output ICs(with has start bit and stop bit usually this is used in sensor technology ), but I have not find any IC which can store the data and outputs serially ..

regards
Ravee

 

[Sillo]

look for a parallel to serial chip The Shift Register - Parallel and Serial maybe this will help

 

[Raveesh]

thanks ... but the problem with this is, I cant burn the data and use the same for life time ...

 

[Sillo]

You can use a dip switch with a shift register then instead of burning the data every time just set the dip switch.If you are prepared to burn any chip that you want to change the data etc. then use apic 10f or 12f series that are less than 1$.

---------- Post added at 09:49 ---------- Previous post was at 09:07 ----------

You can use 1-wire devices it all depends on the protocol you want to use or just the raw 8 or 16 bits on/off **broken link removed**

 

[Raveesh]

Hi,
I didnt get what is exactly apic 10f, can you provide a link/full details ..?

 

[ctownsend]

I cant go with micro controller becoz my project BOM cost will go up ..

You can buy a small avr (attiny12 or attiny13) for around $1 in QTY 10 or more. No other components needed except ONE attiny mcu.
WHY would you waste time on a series of switches or shift registers or anything else that will cost the same or more?

 

[Sillo]

I'm sorry just a typo PIC 10Fxxx Microchip PIC10F200-I/P - Microchip - PIC10F200IP - datasheet less than 1$