PIC18FXX2 Data Sheet High-Performance, Enhanced Fl.
PIC18F452 - Microcontroller
18F4520 - PIC18F4520
PIC18F4520 - 28/40/44-Pin Enhanced Flash Microcontrollers
PIC18F4525 - Enhanced Flash Microcontroller
PIC18F4523 - (PIC18Fxx23) Enhanced Flash Microcontrollers
18F4525 - PIC18F4525
18F452 - PIC18F452