MC9S12HY64 Datasheet, PDF (717/792 Pages) Freescale Semiconductor, Inc – S12 Microcontrollers

Appendix A
Electrical Characteristics
A.1 General
NOTE
The electrical characteristics given in this section should be used as a
guideonly. Values cannot be guaranteed by Freescale and are subject to
change without notice.
This supplement contains the most accurate electrical information for the MC9S12HY/HA-Family
microcontroller available at the time of publication.
This introduction is intended to give an overview on several common topics like power supply, current
injection etc.
A.1.1 Parameter Classification
The electrical parameters shown in this supplement are guaranteed by various methods. To give the
customer a better understanding the following classification is used and the parameters are tagged
accordingly in the tables where appropriate.
NOTE
This classification is shown in the column labeled “C” in the parameter
tables where appropriate.
P: Those parameters are guaranteed during production testing on each individual device.
C: Those parameters are achieved by the design characterization by measuring a statistically relevant
sample size across process variations.
T: Those parameters are achieved by design characterization on a small sample size from typical
devices under typical conditions unless otherwise noted. All values shown in the typical column
are within this category.
D: Those parameters are derived mainly from simulations.
A.1.2 Power Supply
The VDDA, VSSA pin pairs supply the A/D converter , PAD[7:0] IO pins, parts of the internal voltage
regulator, also the A/D covnvert reference voltage input
The VDDX, VSSX pin pairs supply the I/O pins except PU/PV and PAD[7:0].
The VDDM, VSSM pin pairs [2:1] supply the PU/PV I/O pins.
MC9S12HY/HA-Family Reference Manual, Rev. 1.04
Freescale Semiconductor
717