PIC18F2420/2520/4420/4520 Data Sheet 28/40/44-Pin .
18F2420 - 28/40/44-Pin Enhanced Flash Microcontrollers
PIC18F2420/2520/4420/4520 Data Sheet 28/40/44-Pin Enhanced Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology 2004 Microchip Technology.PIC18F2420 - 28/40/44-Pin Enhanced Flash Microcontrollers
PIC18F2420/2520/4420/4520 Data Sheet 28/40/44-Pin Enhanced Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology © 2008 Microchip Technology.