SC9S12XS256J1MAA FREESCALE [Freescale Semiconductor, Inc], SC9S12XS256J1MAA Datasheet - Page 656
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SC9S12XS256J1MAA
Manufacturer Part Number
SC9S12XS256J1MAA
Description
HCS12 Microcontrollers
Manufacturer
FREESCALE [Freescale Semiconductor, Inc]
Datasheet
1.SC9S12XS256J1MAA.pdf
(736 pages)
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Electrical Characteristics
The VDDX, VSSX pin pairs [2:1] supply the I/O pins.
VDDR supplies the internal voltage regulator.
VDDPLL, VSSPLL pin pair supply the oscillator and the PLL.
VSS1, VSS2 and VSS3 are internally connected by metal.
All VDDX pins are internally connected by metal.
All VSSX pins are internally connected by metal.
VDDA is connected to all VDDX pins by diodes for ESD protection such that VDDX must not exceed
VDDA by more than a diode voltage drop. VDDA can exceed VDDX by more than a diode drop in order
to support applications with a 5V A/D converter range and 3.3V I/O pin range.
VSSA and VSSX are connected by anti-parallel diodes for ESD protection.
A.1.3
There are four groups of functional pins.
A.1.3.1
The I/O pins have a level in the range of 3.13V to 5.5V. This class of pins is comprised of all port I/O pins,
the analog inputs, BKGD and the RESET pins. Some functionality may be disabled. For example the
BKGD pin pull up is always enabled.
A.1.3.2
This group is made up by the V
A.1.3.3
The pins EXTAL, XTAL dedicated to the oscillator have a nominal 1.8V level. They are supplied by
VDDPLL.
656
Pins
I/O Pins
Analog Reference
Oscillator
In the following context V
VDDX; V
I
pins. The Run mode current in the VDDX domain is external load
dependent.
V
V
I
VDDPLL.
DD35
DD
DD
DDPLL
is used for the sum of the currents flowing into VDD, VDDF and
is used for VDD, V
denotes the sum of the currents flowing into the VDDA and VDDR
is used for VDDPLL, V
SS35
is used for either VSSA and VSSX unless otherwise noted.
RH
S12XS Family Reference Manual, Rev. 1.09
and V
SS
RL
DD35
is used for VSS1, VSS2 and VSS3.
pins.
is used for either VDDA, VDDR, and
SSPLL
NOTE
is used for VSSPLL
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