
PIC18F4680 vs 4620: Same Socket, Same Size, Wrong Silicon
Both are 40-pin. Both hold 64 KB. Both run at 40 MHz and both are PIC18F parts that a distributor will happily cross-reference. One of

Both are 40-pin. Both hold 64 KB. Both run at 40 MHz and both are PIC18F parts that a distributor will happily cross-reference. One of

A CAN node can be copied byte for byte and still fail on the bus. The reason is that half of what makes it work

This part is marked not recommended for new designs, which means the boards in service were built over a long window and do not all

Quotes for this part are often built around the array size. The array is 32 KB. The product is usually between four and ten. The
CAN nodes fail in a way that no bench test catches. The node joins the bus, exchanges a few frames with a USB-CAN dongle on

Every request for a program copy arrives with the same two lines: flash and EEPROM. On a PIC18F4450 the second line has no answer, because

“Copy the flash area” sounds like one operation on one region. A PIC18F4423 has four protection blocks, and the boundary between them is where copies
Most quotes for reading a locked PIC18F4320 assume the expensive route. But this part comes in a 40-pin PDIP that drops straight into a socket,