Recommendations on 18-pin PIC

weg22 · Joined: 08 Jul 2005 Posts: 91

I have just realized that the PIC I am using (16F84) does not have enough memory for the program I'd like to implement. I was hoping someone could recommend another micro with more RAM (about 2 or 3 times as much) but about the same size and weight (i.e. a 40 pin PIC is way too heavy for my application).

Thanks in advance,
weg

rnielsen · Joined: 23 Sep 2003 Posts: 852 Location: Utah

Try looking at the following:

PIC16F648A
PIC16F819
PIC16F87
PIC16F88

Each one has 4-5 times the RAM and also have other additional features. IT looks like they cost a bit less too.

Ronald

MikeValencia · Joined: 04 Aug 2004 Posts: 238 Location: Chicago

You can easilly compare prices, RAM, ROM, pin count, etc., and filter them out at the Microchip website.

www.microchip.com

Click on:
PICmicro Microcontrollers --> Memory Type: FLASH

and you'll get an exhaustive table of all PIC flash pic parts. And for the most part, you can assume pin-to-pin compatibility among each of them.

ckielstra · Joined: 18 Mar 2004 Posts: 3680 Location: The Netherlands

PIC16F688, 14 pin, 7168 bytes ROM, 256 bytes RAM. And save another gram or two by using the internal oscillator.

asmallri · Joined: 12 Aug 2004 Posts: 1635 Location: Perth, Australia

PIC18F1320 and pick up the 18F family benefits.
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MikeValencia · Joined: 04 Aug 2004 Posts: 238 Location: Chicago