MPC5604B/C Microcontroller Data Sheet, Rev. 9
Electrical characteristics
Freescale Semiconductor
66
4.17
Slow internal RC oscillator (128 kHz) electrical characteristics
The device provides a 128 kHz slow internal RC oscillator. This can be used as the reference clock for the RTC module.
IFIRCSTOP CC T Fast internal RC oscillator high
frequency and system clock current
in stop mode
TA = 25 °C sysclk = off
—
500
—
A
sysclk = 2 MHz
—
600
—
sysclk = 4 MHz
—
700
—
sysclk = 8 MHz
—
900
—
sysclk = 16 MHz
—
1250
—
tFIRCSU CC C Fast internal RC oscillator start-up
time
VDD = 5.0 V ± 10%
—
1.1
2.0
s
FIRCPRE CC T Fast internal RC oscillator precision
after software trimming of fFIRC
TA = 25 °C
1—
+1
%
FIRCTRIM CC T Fast internal RC oscillator trimming
step
TA = 25 °C
—
1.6
%
FIRCVAR CC P Fast internal RC oscillator variation
in overtemperature and supply with
respect to fFIRC at TA = 25 °C in
high-frequency configuration
—
5—
+5
%
1 V
DD = 3.3 V ± 10% / 5.0 V ± 10%, TA = 40 to 125 °C, unless otherwise specified.
2 This does not include consumption linked to clock tree toggling and peripherals consumption when RC oscillator is
ON.
Table 42. Slow internal RC oscillator (128 kHz) electrical characteristics
Symbol
C
Parameter
Conditions1
Value
Unit
Min
Typ
Max
fSIRC
CC P Slow internal RC oscillator low
frequency
TA = 25 °C, trimmed
—
128
—
kHz
SR —
—
100
—
150
ISIRC
2,
CC C Slow internal RC oscillator low
frequency current
TA = 25 °C, trimmed
—
5
A
tSIRCSU
CC P Slow internal RC oscillator start-up
time
TA = 25 °C, VDD = 5.0 V ± 10%
—
8
12
s
SIRCPRE
CC C Slow internal RC oscillator precision
after software trimming of fSIRC
TA = 25 °C
2—
+2
%
SIRCTRIM
CC C Slow internal RC oscillator trimming
step
——
2.7
—
SIRCVAR
CC C Slow internal RC oscillator variation
in temperature and supply with
respect to fSIRC at TA = 55 °C in high
frequency configuration
High frequency configuration
10
—
+10
%
Table 41. Fast internal RC oscillator (16 MHz) electrical characteristics (continued)
Symbol
C
Parameter
Conditions1
Value
Unit
Min
Typ
Max