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STM32L031C6 датащи(PDF) 17 Page - STMicroelectronics

номер детали STM32L031C6
подробное описание детали  Access line ultra-low-power 32-bit MCU Arm®-based Cortex®-M0, up to 32KB Flash, 8KB SRAM, 1KB EEPROM, ADC
PDF  126 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
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STM32L031C6 датащи(HTML) 17 Page - STMicroelectronics

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DS10668 Rev 6
17/126
STM32L031x4/6
Functional overview
33
Table 3. Functionalities depending on the operating power supply range
Operating power supply range(1)
1. GPIO speed depends on VDD voltage range. Refer to Table 55: I/O AC characteristics for more information
about I/O speed.
Functionalities depending on the operating power
supply range
ADC operation
Dynamic voltage scaling
range
VDD = 1.65 to 1.71 V
Conversion time up to
570 ksps
Range 2 or
range 3
VDD = 1.71 to 2.0 V(2)
2. CPU frequency changes from initial to final must respect the condition: fCPU initial <4fCPU initial. It must also
respect 5 μs delay between two changes. For example to switch from 4.2 MHz to 32 MHz, you can switch
from 4.2 MHz to 16 MHz, wait 5 μs, then switch from 16 MHz to 32 MHz.
Conversion time up to
1.14 Msps
Range 1, range 2 or range 3
VDD = 2.0 to 2.4 V
Conversion time up to 1.14
Msps
Range 1, range 2 or range 3
VDD = 2.4 to 3.6 V
Conversion time up to 1.14
Msps
Range 1, range 2 or range 3
Table 4. CPU frequency range depending on dynamic voltage scaling
CPU frequency range
Dynamic voltage scaling range
16 MHz to 32 MHz (1ws)
32 kHz to 16 MHz (0ws)
Range 1
8 MHz to 16 MHz (1ws)
32 kHz to 8 MHz (0ws)
Range 2
32 kHz to 4.2 MHz (0ws)
Range 3
Table 5. Functionalities depending on the working mode
(from Run/active down to standby) (1)
IPs
Run/Active
Sleep
Low-
power
run
Low-
power
sleep
Stop
Standby
Wakeup
capability
Wakeup
capability
CPU
Y
--
Y
--
--
--
Flash memory
O
O
O
O
--
--
RAM
Y
Y
Y
Y
Y
--
Backup registers
Y
Y
Y
Y
Y
Y
EEPROM
O
O
O
O
--
--
Brown-out reset
(BOR)
OO
O
O
O
O
O
O
DMA
O
O
O
O
--
--



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