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Thread: Cheap microcontroller these days ...

  1. #1
    Administrator T-1000 vikas's Avatar
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    Default Cheap microcontroller these days ...

    I would have simply picked Atmega8 a few months back but its not so now.

    My requirements are can be programmed in C , has say 8 kb + of flash and easy programming.

    Any Avr , Pic or 8051 i should look to ? i would prefer easily programmable also ... and < Rs 100 .
    Vikas Patial

  2. #2

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    AT89s52----> for basic work without adc....cheap and can be programmed with USBASP
    pic16f72----> descent priced....with adc......but somehow I hate PIC architecture.

    Asimov

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    16F72 doesnt have a UART.
    I would highly recommend the 16F73.

    If you are buying in large volumes,

    http://www.microchip.com/ParamChartS...g=en&pageId=74
    .... I didnt do it ! ....

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    Vikas, why not try TI's MSP430 series.

  5. #5

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    I meant 16F73/72.......

    Asimov

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    AT89s52 if price is a concern else a PIC16F73/72.
    Probots
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    PIC18F13K50
    http://www.microchip.com/wwwproducts...cName=en533925

    *Good CPU
    *Free C Compiler.
    *Rich Peripherals
    *Free USB Library
    *USB 2.0
    *About $2.0 at Microchip Direct (Buy about 100 and keep with you)
    *Get a PICKIT3
    Avinash Gupta
    ************
    www.eXtremeElectronics.co.in

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    Administrator T-1000 vikas's Avatar
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    Thanks guys for the advice will give 89s52 a shot since have them lying around already. I am also looking into NXP P89V51RD2 ( 64 KB flash ) .

    Will also buy a few 16f73 next time i go to LRM .

    On second thoughts ... PIC also seems good , since im already working with PIC these days , and microchip direct delivers in 3 days.

    So for a simple UART application what do you guys think ... say i need 50 + boards / month ...

    16f73 VS 89s52 VS NXP
    Vikas Patial

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    16F88!! -18 pin. where as the 51 core ones are 40 pin. If you need a low pin count one from MCS51, go for 2051 or 4051. They are all cheap .
    16F688 - 14 pin.. I dont know the pricing, nor if your application needs more pins.

    16F73 costs about Rs 70 here, volume pricing should be cheaper. However, 16F73s are easily available than the 16F88s here, and I dont know if that is readily available in delhi.

    All 28Pin chips (in the 8 bit domain) are pin compatible (So are the 40pin chips). So once you make a board for the 28pin chips, you can put in any chip in the 8 bit series, except for special pins - like the USB chips.

    I got no clue about the pricing of NXP ones. So cant comment on them.
    Last edited by allbits; 09-28-2010 at 12:58 AM.
    .... I didnt do it ! ....

  10. #10
    Senior Member Cyborg
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    Default

    Quote Originally Posted by avinash_g View Post
    PIC18F13K50
    Great tip for me.
    Is it available in local market ??
    Nikhil Chandra | Bangalore

    Imagination is more important than knowledge.

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