Background: We are in the process of developing a sensing application. We are currently using an Evaluation board from a vendor for initial development work that has a MSP430 microcontroller.
The first version (000) of the board had 240 ABMM I3C Ceramic surface mount microprocessor crystal from Abracon on the board. This evaluation board with custom software works fine.
The second version (001) of the board has a 240 ABMM F4C crystal. The second board with the custom software doesn’t work at all. Although the crystal is from the same vendor the crystals appear to be slightly different.
Picture of Crystal from the working EVM board
Picture of Crystal from the defective EVM board
Below is the schematic for the crystal
Question: What is the difference between the two crystals? (I3C vs F4C)
Note: I'm wondering if one of the components is not a genuine part and is a knockoff.