External Clock Source Charateristic - CMOSTEK CMT2380F64 Manual

with data processing code running from an internal Flash
Parameter Symbol
Supply current
I
DD
in operating mode
1. Typical value is tested under TA=25℃, VDD=3.3V.
2. The internal high-speed clock is 8 MHz，and PLL is enabled when f
Typical current consumption in sleep mode, data processing code is run from internal Flash or RAM
Parameter Symbol
Working current in
I
DD
sleep mode
1. Typical value is tested under TA=25 ℃, VDD=3.3 V.
2. The internal high-speed clock is 8 MHz，and PLL is enabled when fHCLK>8 MHz.

1.12 External Clock Source Charateristic

⚫
High-speed external user clock generated from external oscillation sources
The characteristic parameters in the following table are measured under a high-speed external clock source and the ambient
temperature and supply voltage meet the conditions in the following table.
Symbol
f User external clock frequency
HSE_ext
V OSC_IN input pin at high-level voltage
HSEH
OSC_IN input pin at low-level voltage
V
HSEL
OSC_IN high /low time
t
w(HSE)
t
r(LSE)
OSC_IN up/ down time
t
f(LSE)
OSC_IN input capacitance
C
in(HSE)
Typical current consumption in operation mode,
Condition
External high speed clock (HSE,) using
AHB prefrequency to reduce the
frequency
Internal high speed RC oscillator (2)
(HSI)，AHB pre-frequency to reduce
the frequency
Condition
External high speed clock
(HSE)，using AHB
prefrequency to reduce the
frequency
Internal high speed RC
oscillator(2) (HSI)， AHB
pre-frequency to reduce the
frequency
High-speed external user clock features
Parameter
(1)
(1)
(1)
(1)
(1)
Rev 0.3 | 16 / 83
f
HCLK
Enable all the
peripherals
8.2
48 MHz
5.0
24 MHz
2.7
8 MHz
7.6
48 MHz
4.3
24 MHz
2.1
8 MHz
>8 MHz.
HCLK
f
HCLK
Enable all the
peripherals
6.3
48 MHz
3.7
24 MHz
1.8
8 MHz
5.7
48 MHz
3.1
24 MHz
1.2
8 MHz
Condition Min
4
0.7 V
DD
V
-
SS
16
-
CMT2380F64
(1)
Typ
Disable all the
peripherals
4.8
3.3
2.1
4.3
2.7
1.5
(1)
Typ
Unit
Disable all the
peripherals
2.7
2.0
1.2
2.1
1.4
0.6
Typ Max Unit
8 20 MHz
- V
DD
V
- 0.3 V
DD
- -
ns
- 20
5 pF
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Unit
mA
mA
mA
mA