mpc5645s Freescale Semiconductor, Inc, mpc5645s Datasheet - Page 89

• Manufacturer Part Number: mpc5645s
• Description: Mpc5645s Microcontroller Data Sheet
• Manufacturer: Freescale Semiconductor, Inc

4.13
The device provides a fast internal RC oscillator (FIRC). This is used as the default clock at the power-up of the device.
1
2
3
4
4.14
The device provides a slow internal RC oscillator (SIRC). This can be used as the reference clock for the RTC module.
Freescale Semiconductor
4
5
6
7
1
2
3
RCMVAR CC
RCLVAR
I
I
RCMT-
RCLT-
RCMPWD
V
All values need to be confirmed during device validation.
Guaranteed by device simulation, not tested in production
Guaranteed by device characterization, not tested in production
Data based on device simulation.
2x sys clock required for generation of DDR timing.
f
Data based on characterization results, not tested in production
V
All values need to be confirmed during device validation.
Guaranteed by device simulation, not tested in production
RCMRUN
CPU
f
I
RIM
f
DD
DD
RIM
RCL
RCL
Symbol
RCM
Symbol
3
= 3.3 V ± 10% / 5.0 V ± 10%, T
= 3.3 V ± 10% / 5.0 V ± 10%, T
of 125 MHz can be achieved only at temperatures up to 105 °C with a maximum FM depth of 2%.
Fast internal RC oscillator (16 MHz) electrical characteristics
Slow internal RC oscillator (128 kHz) electrical characteristics
CC
CC
CC
CC
CC
CC
CC
CC
3
3
3
3
3
3
3
3
4
C
D RC oscillator low frequency current
C RC oscillator precision after trimming of
C RC oscillator variation in temperature and
P RC oscillator low frequency
C
D RC oscillator high frequency current in run-
D RC oscillator high frequency current in power
C RC oscillator precision after trimming of f
C RC oscillator variation in temperature and
P RC oscillator high frequency
f
supply with respect to f
high frequency configuration
RCL
ning mode
down mode
supply with respect to f
high-frequency configuration
Table 39. Slow internal RC oscillator electrical characteristics
Table 38. Fast internal oscillator electrical characteristics
Parameter
A
A
MPC5645S Microcontroller Data Sheet, Rev. 6
Parameter
= -40 to +105 °C, unless otherwise specified.
= -40 to +105 °C, unless otherwise specified.
RC
RC
at T
at T
A
A
= 55 °C in
= 55 °C in
RC
T
T
T
High frequency config-
uration
A
A
A
= 25 °C, trimmed
= 25 °C, trimmed
= 25 °C
T
T
T
T
Conditions
A
A
A
A
= 25 °C, trimmed
= 25 °C, trimmed
= 25 °C
= 25 °C
Conditions
1
1
Min
-10
-2
Min
-1
-5
Value
Typ
128
Value
Typ
16
Electrical characteristics
2
2
Max
+10
+2
5
Max
200
10
+1
+5
Unit SpecID
kHz
µA
%
%
MHz O12.1
Unit SpecID
µA
µA
%
%
O13.1
O13.2
O13.3
O13.4
O12.2
O12.3
O12.4
O12.5
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