Table 4. Cpu Frequency Range Depending On Dynamic Voltage Scaling - STMicroelectronics STM32L162RC Manual

STM32L162VC, STM32L162RC
Table 3. Functionalities depending on the operating power supply range (continued)
Operating power supply
range
V =V = 2.0 to 2.4 V
DD DDA
V =V = 2.4 to 3.6 V
DD DDA
1. CPU frequency changes from initial to final must respect "F
consumption peak when frequency increases. It must also respect 5 µs delay between two changes. For example to switch
from 4.2 MHz to 32 MHz, the user can switch from 4.2 MHz to 16 MHz, wait 5 µs, then switch from 16 MHz to 32 MHz.
2. Should be USB compliant from I/O voltage standpoint, the minimum V

Table 4. CPU frequency range depending on dynamic voltage scaling

Functionalities depending on the operating power supply range
DAC and ADC
operation
Conversion time up
to 500 Ksps
Conversion time up
to 1 Msps
CPU frequency range
16 MHz to 32 MHz (1ws)
32 kHz to 16 MHz (0ws)
8 MHz to 16 MHz (1ws)
32 kHz to 8 MHz (0ws)
2.1MHz to 4.2 MHz (1ws)
32 kHz to 2.1 MHz (0ws)
DocID022881 Rev 10
Dynamic voltage
USB
scaling range
Range 1, Range 2
(2)
Functional
or Range 3
Range 1, Range 2
(2)
Functional
or Range 3
initial < 4*F final" to limit V
CPU CPU
is 3.0 V.
DD
Dynamic voltage scaling range
I/O operation
Full speed operation
Full speed operation
drop due to current
CORE
Range 1
Range 2
Range 3
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