CMT2380F64
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Rev 0.3 | 20 / 83
1.13 Controller internal clock source characteristics
⚫
High speed internal (HSI) RC Oscillator
HSI
Oscillator Characteristic
(1)(2)
Sign
Parameter
Condition
Min
Typ
Max
Unit
HSI
Frequency
VDD=3.3 V
，
T
A
= 25
℃，
after calibration
7.92
8
8.08
MHz
ACC
HSI
HSI oscillator
temperature drift
VDD=3.3 V
，
T
A
= -40~105
℃，
temperature
drift
-3
-
3
%
VDD=3.3 V
，
T
A
= - 10~85
℃，
temperature
drift
-2.5
-
2
%
VDD=3.3 V
，
T
A
= 0~70
℃，
temperature drift
-2
-
1.5
%
t
SU(HSI)
HSI oscillator
startup time
1
-
3
μs
I
DD(HSI)
HIS oscillator
power consumption
-
80
150
μA
1. Unless otherwise specified, VDD = 3.3 V
，
TA = -40~85
℃
.
2.
Guaranteed by design and comprehensive assessment, not tested in production.
⚫
Low speed internal (LSI) RC oscillator
LSI Oscillator Characteristic
(1)
Sign
Parameter
Condition
Min
Typ
Max
Unit
f
LSI
(2)
output frequency
25
℃
calibration, VDD =3.3 V
29
30
31
KHz
VDD =1.8 V ~5.5 V,
TA = -40~105
℃
24
30
36
KHz
t
SU(LSI)
(3)
LSI oscillator start time
-
30
80
μs
I
DD(LSI)
(3)
LSI oscillator power
consumption
-
0.2
-
μA
1. Unless otherwise specified, VDD = 3.3 V
，
TA = -40~85
℃
.
2.
Guaranteed by design and comprehensive assessment, not tested in production.
1.14
Controller low-power mode wake-up time
The arousal times listed in the table below are measured during the arousal phase of an 8MHz HIS RC oscillator. The clock
source used on wake-up depends on the current mode of operation:
◼
Stop or Sleep mode
：
the clock source is RC oscillator
◼
Sleep mode
：
clock source is the clock used when entering into sleep mode
Wake-up time in the low-power mode
Symbol
Parameter
Typ
Unit
t
WUSLEEP
(1)
Awaken from sleep mode
16
HCLK
(2)
t
WUSTOP
(1)
Awaken from stop mode
20
us
t
WUPD
(1)
Awaken from stanby mode
55
us
1. The awaken time counts from the beginning of the wake up event until the user program reads the first instruction;
2.
HCLK is the AHB clock frequency.
f
