MC9S12P128 Datasheet, PDF (533/564 Pages) Freescale Semiconductor, Inc – S12 Microcontrollers

Package Information
Appendix C
Package Information
This section provides the physical dimensions of the MC9S12P-Family packages.
NOTE
The exposed pad of the 48 QFN package should be attached to Vss ground
plane.
S12P-Family Reference Manual, Rev. 1.12
Freescale Semiconductor
533