mc9s12xd256 Freescale Semiconductor, Inc, mc9s12xd256 Datasheet - Page 1239

• Manufacturer Part Number: mc9s12xd256
• Description: Hcs12x Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Appendix A
Electrical Characteristics
A.1
This supplement contains the most accurate electrical information for the S12XD, S12XB & S12XA
families 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
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.
P:
C:
T:
D:
A.1.2
The MC9S12XDP512 utilizes several pins to supply power to the I/O ports, A/D converter, oscillator, and
PLL as well as the digital core.
The V
The V
regulator.
V
oscillator and the PLL.
V
V
protection.
Freescale Semiconductor
DD1
SS1
DDA
, V
and V
, V
DDA
DDX
Those parameters are guaranteed during production testing on each individual device.
Those parameters are achieved by the design characterization by measuring a statistically relevant
sample size across process variations.
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.
Those parameters are derived mainly from simulations.
SS1
DDX
General
, V
, V
SS2
, V
Parameter Classification
Power Supply
, V
SSA
SSX
This classification is shown in the column labeled “C” in the parameter
tables where appropriate.
DD2
are internally connected by metal.
DDR
, V
pair supplies the A/D converter and parts of the internal voltage regulator.
, and V
DDR
as well as V
, and V
SS2
are the supply pins for the digital logic, V
SSR
SSA
MC9S12XDP512 Data Sheet, Rev. 2.17
pairs supply the I/O pins, V
, V
SSX
, V
SSR
NOTE
are connected by anti-parallel diodes for ESD
DDR
supplies also the internal voltage
DDPLL
Appendix A Electrical Characteristics
, V
SSPLL
supply the
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