Which PIC is your PICAXE?

PICAXE Microcontroller Summary...

PROCESSOR		 PICAXE		 IC	 MEMORY	   I/O	    OUTPUTS    INPUTS    Touch	 ADC	   DATA	      POLLED
  TYPE	 	          TYPE	        PINS	 LINES    LINES 		         PINS   L=LOW     MEMORY     INTERRUPT    VCC      Speed
-------------------------------------------------------------------------------------------------------------------------------------------------
   
PIC16F683		PICAXE-08M	  8	   80	    5	      1-4        1-4              3     256-PROG	 YES       5V 

PICAXE-08M2+		PICAXE-08M2 	  8	  2048      6                             3       3     256**                      1.8-5.5v 32Mhz     
 
PIC16F684	    	PICAXE-14M	 14	   80      11         1-5          6	          2     256-PROG         YES       5V
 
PICAXE-14M2		PICAXE-14M2      14       600      12                             7             256                        1.8v+   32Mhz 
 
PICAXE-18M2		PICAXE-18M2	 18	 2048	   16	       16       0-10	 10      10     256+I2C 	 YES	   1.8v+   32Mhz 					           
(was PIC16F1827)  
PIC16F677 		PICAXE-20M	 20	   80      16           8          8              4	256-PROG         YES       5V
 
PICAXE-20M2		PICAXE-20M2      20      2048      18                            11      11     256                        1.8-5.5v 32Mhz 
 
PIC18F14K22 #		PICAXE-20X2	 20	 1000	   17        1-17        0-8	               128+I2C+128+      YES       1.8v+
								     Configurable		       Scratch                                                                                  
PIC16F886   #		PICAXE-28X1	 28	 1000      21        9-17       0-12            0-4    128+I2c+128+      YES       5V
												       Scratch
PIC18F2520  #		PICAXE-28X2-5V 	 28	 1000  	   21	     1-17		        0-8    128+I2C+128+      YES  	   5.5v
								     Configurable		       Scratch
PIC18F25K20          	PICAXE-28X2-3V   28	 1000	   21        1-17                       0-8    128+I2C+128+      YES       3.3v
								     Configurable		       Scratch
PIC16F887   #		PICAXE-40X1	    40	 1000      32        9-17      16-23            3-7    128+I2C+128+      YES       dn to 2V at 4/8MHz
								     1-17			       Scratch
                                                                     Configurable                       
PIC18F45K22  #		PICAXE-40X2	 40	 1000	   32	     1-17	               3-12    128+I2C+128+      YES       3V+ & 5V+
								     Configurable                      Scratch
-----

PIC18F4520  #		PICAXE-40X2-5V	 40	 1000	   32	     1-17	               3-12    128+I2C+128+      YES       5V+
								     Configurable                      Scratch

PIC18F45K20 #		PICAXE-40X2-3V	 40	 1000	   32	     1-17	               3-12    128+I2C+128+      YES       3V+
								     Configurable                      Scratch


MOST PICAXE have SPI = Serial Peripheral Interface BUSS       I2C = Inter-Integrated Circuit BUSS

Chips with a "#" have an Enhanced version of SPI

Chips with a "≈" are future devices!

Chips with a "**" mean Data Memory is shared with Program Memory

Memory (lines) = Approximate number of lines of program code the chip can hold.
Data Memory = Bytes of EEPROM memory on board. "128 (-Prog)" means 128 Bytes less the space needed for your program. 256+I2C means.
256 Bytes + any external EEPROM space you add via the I2C interface.)
Polled Interrupt = A process that automatically checks a pin in between each command to see if something has happened.

** The following are now obsolete and discontinued sales **

PIC12F629		PICAXE-08	  8	   40	    5	      1-4        1-4	 1L     128-PROG          -	   5V

PIC16F627(A)    	PICAXE-18        18	   40	   13	        8          5	 3L     128-PROG	  -	   5V      4Mhz

PIC16F819		PICAXE-18A	 18	   80	   13	        8	   5	  3     256		 YES	   5V      8Mhz
 
PIC16F819  		PICAXE-18M	 18	   80      13           8          5      3	256-PROG  	 YES       5V      8Mhz
 
PIC16F88  		PICAXE-18X	 18	  600	   13	        9	   5	  3     256+I2C		 YES	   5V      8Mhz

PIC16F872		PICAXE-28A	 28	   80	   20	        8          8	  4     64+256		 YES	   5V

PIC16F873A		PICAXE-28X	 28	  600	   21	     9-17       0-12	0-4     128+I2C		 YES	   5V   

PIC16F874A		PICAXE-40X	 40	  600	   32	     9-17       8-20	3-7     128+I2C+128      YES       5V
												Scratch

                                                 Work in Progress


PROCESSO PICAXE Terminate * Max Current (mA) on Output PINS Serial-IN Serial-Out CPU Max
TYPE TYPE Input PINS Chip Port Pins PIN ** PIN Clock Speed
----------------------------------------------------------------------------------------------------------------------------------------
PIC16F683 PICAXE-08M 6,5,4,3 95mA 90mA 25mA 100k 2 7
PIC16F684 PICAXE-14M 7,6,5,4,3 95mA 90mA 25mA 100k 2 13
PIC16F819 PICAXE-18M 18,17,16,15,1 100k 3 2
PIC16F88 PICAXE-18X 18,17,16,15,1 100k 3 2
PIC16F677 PICAXE-20M 10,9,8,7,6, 250mA 200mA 25mA 100k 2 15 64Mhz
5,4,3
PIC18F14K22 PICAXE-20X2 10,9,8,7,6, 95mA 90mA 25mA 100k 2 19
5,4,3
PIC16F886 PICAXE-28X1 18,17,16,15, 100k 6 7 16Mhz
14,13,12,11,
5,4,3,2
PIC18F2520 PICAXE-28X2 5v 250mA 200mA 25mA 100k 6 7 40Mhz
--- PICAXE-28X2 3v+ 64Mhz

PIC16F887 PICAXE-40X1 95mA 90mA 25mA 100k 6 7 16Mhz
PIC18F4520 PICAXE-40X2 5v 250mA 200mA 25mA 100k 6 7 4,8,10,40Mhz
PICAXE-40x2 3v+ 4,8,10,16,64Mhz

* = It is not mandatory to tie unused Inputs to ground or Vcc but there may be circumstances where doing so may help with things such as reduced
        power consumption, etc. A 4.7k Resistor will do the job.

** = SERIN line must be pulled to ground – recommended is 10k Resistor but 100k should work. This is not necessary for the SEROUT pin.

NOTE: Please let me know of any mistakes.    Also, if you buy a PIC16F684 for example, from a manufacturer, it WILL NOT work as a PICAXE.
              PICAXE Chips have a Basic Interpreter internally so they understand commands you download into them; that's why any ol' PIC wont work!