mc9s12q128 Freescale Semiconductor, Inc, mc9s12q128 Datasheet - Page 603

• Manufacturer Part Number: mc9s12q128
• Description: Hcs12 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

A.1.7
This chapter describes the operating conditions of the devices. Unless otherwise noted those conditions
apply to all the following data.
1. The device contains an internal voltage regulator to generate the logic and PLL supply out of the I/O supply. The operating
2. Some blocks e.g. ATD (conversion) and NVMs (program/erase) require higher bus frequencies for proper operation.
Freescale Semiconductor
I/O, Regulator and Analog Supply Voltage
Digital Logic Supply Voltage
PLL Supply Voltage
Voltage Difference V
Voltage Difference V
Bus Frequency
Operating Junction Temperature Range
.
conditions apply when this regulator is disabled and the device is powered from an external source.
Using an external regulator, with the internal voltage regulator disabled, an external LVR must be provided.
Operating Conditions
Instead of specifying ambient temperature all parameters are specified for
the more meaningful silicon junction temperature. For power dissipation
calculations refer to
Characteristics”
1
DDX
SSX
to V
to V
Rating
(1)
SSR
DDA
and V
SSA
Section A.1.8, “Power Dissipation and Thermal
Table A-4. Operating Conditions
MC9S12Q128
Rev 1.09
NOTE
Symbol
V
f
V
bus
DDPLL
V
VDDX
VSSX
DD5
T
DD
J
(2)
2.97
2.35
2.35
–0.1
–0.1
0.25
Min
–40
Appendix A Electrical Characteristics
Typ
2.5
2.5
—
—
5
0
0
Max
2.75
2.75
140
5.5
0.1
0.1
16
MHz
Unit
V
V
V
V
V
C
603