MC9S12Q128_10 Datasheet, PDF (599/644 Pages) Freescale Semiconductor, Inc – HCS12 Microcontrollers

Appendix A
Electrical Characteristics
Appendix A Electrical Characteristics
A.1 General
NOTE
The electrical characteristics given in this section are preliminary and
should be used as a guide only. Values cannot be guaranteed by Freescale
and are subject to change without notice.
The parts are specified and tested over the 5V and 3.3V ranges. For the
intermediate range, generally the electrical specifications for the 3.3V range
apply, but the parts are not tested in production test in the intermediate
range.
This supplement contains the most accurate electrical information for the MC9S12Q128 microcontrollers
available at the time of publication. The information should be considered PRELIMINARY and is subject
to change.
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 will be added at a later release of the specification
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. They are regularly verified by production monitors.
T: Those parameters are achieved by design characterization on a small sample size from typical
devices. 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 MC9S12Q128 members utilize several pins to supply power to the I/O ports, A/D converter, oscillator
and PLL as well as the internal logic.
The V_DDA, V_SSA pair supplies the A/D converter.
The V_DDX, V_SSX pair supplies the I/O pins
The V_DDR, V_SSR pair supplies the internal voltage regulator.
Freescale Semiconductor
MC9S12Q128
599
Rev 1.10