MCU with the characteristics of the 12F675 and 16F628A

[jrgob]

Can anyone help me?
I have some projects with PIC 16F628A and 12F675. I'm reading of 675 A/D and sending a signal to the 628A, now need to update the project and do not know which microcontroller from Microchip that I use that has the same characteristics of the 628 with A/D. Can someone tell me if there is a microcontroller to replace the two??


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Thanks.

jrgob

[Ttelmah]

That is why Microchip has a parametric device selector.
Specify what features of the 628A you actually use. Add a requirement for an ADC, and see what you get.

I'd suggest probably the 16F1826.
Same number of pins, cheaper, faster internal RC clock, all the same peripherals, plus ADC. The 1827, is a few cents more, has twice the ROM, and more RAM as well...

Best Wishes

[jrgob]

Ttelmah, thank you ...
I downloaded the datasheet PIC16F1827, has good memory and all the peripherals of the two MCU's, etc...
I did not know this function from Microchip's website, but I'm new to programming for microcontroller...
Now I study the datasheet and evaluate the possibility of using the PIC16F1827 ...
You know if this MCU is most popular as well as the 16F628A?

Best regards.
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Thanks.

jrgob

[PCM programmer]

The 16F1827 in a new technology 16F chip. It has a lower Vpp voltage
than normal 16F PICs. If you use the ICD2 or (I assume) the ICD-U40,
then you need to use a special voltage limiter with it:
http://www.microchipdirect.com/ProductSearch.aspx?Keywords=AC164112

It might be easier to use the 16F88. It doesn't require the voltage limiter.

[jrgob]

Thanks, PCM Programmer,

In the Header Board Specification of ICD 3 does not have the PIC16F1827 and PIC16F88, I can use it for programming?
If I use the ICD 3, I need to use special voltage limiter for PIC16F1827?
What is the most popular microcontroller 16F88 or 16F1827?
_________________
Thanks.

jrgob

[Ttelmah]

The 1827, is a much newer chip than the 628A.
The UK distributers reckon they are now shipping more of them than the 628A, since in general they can directly replace the older part, give higher speeds, and are cheaper. However in terms of total shipped 'to date', the 628A, would win, since it has several year's lead...

Best Wishes

[PCM programmer]

According to the ICD3 User's Guide, it can produce any Vpp voltage that
is needed:

[jrgob]

I have the version 4.083 of PCM Compiler and I do not know if I can build projects with PIC16LF1827, anyone know which version I purchase that contains this microcontroller?


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Thanks.

jrgob

[PCM programmer]

The latest version has it. (vs. 4.107).

[sshahryiar]

Try PIC16F690 or PIC16F88. These can fulfill your requirements and yet can give you more. I agree with PCM Programmer you should use the device selector. However it is better to be specific. You should stick to some specific chips as there are helluva number of them available. For instance, I use PIC12F675 for lite and space hungry applications, 16F84A only for lite digital stuffs, 16F876A, 16F88, 16F690 and 16F877A for mid range projects, and for big works i prefer 18F452 and 18F4550.
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SShahryiar

[jrgob]

I read the datasheet of the 16F88 and is sufficient for my application, I will start my project with this component.
We must build a sensor current, as ACS704ELC-005 datasheet from Allegro is possible to read the current load value and transform in voltage to be monitored by the ADC of the pic.
Has anyone done this application?
There is a discussion on current sensor?

_________________
Thanks.

jrgob