Chip PIC16F877 PIC16F887 PIC16F1789
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Price (PDIP) $4.94 $2.20 $2.51
Pins 40 40 40
I/O pins 33 35 36
Int clk No Yes Yes
Max clock 20MHz 20MHz 32MHz
FLASH 8kW 8kW 16kW
RAM 368 368 2048
EEP 256 256 256
ADC 8x 10-bit 14x 10-bit 14x 12-bit
FVR No 0.6V only Yes
Comparators 0 2 4
Opamps 0 0 3
DAC (5-bit) 0 0 3
DAC (8-bit) 0 0 1
CCP 2 2 3
MSSP 1 1 1
(E)USART 1 1 1E
FSR registers 1 1 2
Linear access No No Yes
HW breakpoints 1 1 3
LAT registers No No Yes
Context saving No No Yes
Stack 8 8 16
R/W stack ptr No No Yes
ADDWFC instr No No Yes
MOVLB/MOVLP No No Yes
MOVIW/MOVWI No No Yes
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