How to migrate across STM32 series
2.1.1
STM32 product series feature comparison
Table 1.
STM32 series overview
Peripheral
Core
FLASH memory
SRAM
OTP
FSMC
Max CPU frequency
Operating voltage
(2)
Bootloader
Advanced
General purpose
Timers
Basic
2 Channels
1 Channel
RTC
SPI(I2S)
TI mode
COMs
Max freq
Audio freq
4/12
STM32 F-1 Series
Cortex-M3 r1p1
MPU in XL-density only
16 / 32 / 64 / 128 / 256 / 384 /
512 / 768KB - 1 MB
6 / 10 / 20 / 24 / 32 / 48 / 64 /
96 KB
No
Yes
24 / 36 / 48 / 72 MHz
depending on the product
line used
2.0 to 3.6 V
Connectivity Line:
USART1/2, CAN2, DFU
(OTG FS Device)
Other product lines: USART1
up to 2
up to 4
up to 2
up to 2
up to 4
Counter
up to 3(2)
No
up to 18 Mbits/s
8 kHz up to 96 kHz
Doc ID 018608 Rev 1
STM32 L-1 Series
Cortex-M3 r2p0 w/ MPU
64/128 KB
10/16 KB
No
No
32 MHz
1.65 to 3.6 V
USART1/2
No
3
2
1
2
Hardware calendar
2
No
up to16 Mbits/s
No
AN3364
STM32 F-2 Series
Cortex-M3 r2p0 w/ MPU
128 / 256 / 512 / 768 /
1024 KB
64/96/128 KB
+ 4KB backup SRAM
(can be used as
EEPROM memory)
Yes (512 Bytes)
Yes
120 MHz
(1)
1.8
to 3.6 V
USART1/3, CAN2, DFU
(OTG FS Device)
2
4
2
2
4
Hardware calendar
3(2)
Yes
up to 15 or 30 Mbits/s
8 kHz up to 192 kHz
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