In select die/package combinations, customers can expect some performance differences in XPIO capability for LPDDR4 implementation when moving from one device to another within a footprint compatible package.
Example
All the 648 XPIOs on the VC1902_D1760 can support a maximum data rate of 4266 Mb/s for LPDDR4 implementation. However, out of 648 total XPIOs on the VM1402_D1760 package, 324 XPIOs support a maximum data rate of 4266 Mb/s for LPDDR4 implementation while the remaining 324 XPIOs can support 3733 Mb/s.