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AN3422 Datasheet(PDF) 33 Page - STMicroelectronics

Part # AN3422
Description  Migration of microcontroller applications from STM32F1 to STM32L1 series
PDF  52 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN3422 Datasheet(HTML) 33 Page - STMicroelectronics

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AN3422
Peripheral migration
Doc ID 018976 Rev 2
33/52
4.10
ADC
The table below presents the differences between the ADC interface of STM32F1 series
and STM32L1 series, these differences are the following:
●
New digital interface
●
New architecture and new features
Program mode
Half word
Program memory: word/ half
page
DATA EEPROM memory: byte /
half word / word / Double word
Read Protection
Unprotection
Read protection disable
RDP = 0xA55A
Level 0 no protection
RDP = 0xAA
Protection
Read protection enable
RDP != 0xA55A
Level 1 memory protection
RDP != (Level 2 & Level 0)
JTAG fuse
NA
Level 2 RDP = 0xCC (2)
Write protection granularity
Protection by 4 Kbyte block
Protection by sector
User Option bytes
STOP
STOP
STANDBY
STANDBY
WDG
WDG
NA
BOR level
NA
BFB2
1.
For more details refer to “EEPROM emulation in STM32F10x microcontrollers (AN2594)
2.
Memory read protection Level 2 is an irreversible operation. When Level 2 is activated, the level of protection cannot be
decreased to Level 0 or Level 1.
Table 12.
FLASH differences between STM32F1 series and STM32L1 series (continued)
Feature
STM32F1 series
STM32L1 series
Color key:
= New feature or new architecture
= Same feature, but specification change or enhancement
= Feature not available (NA)
Table 13.
ADC differences between STM32F1 series and STM32L1 series
ADC
STM32F1 series
STM32L1 series
ADC Type
SAR structure
SAR structure
Instances
ADC1 / ADC2 / ADC3
ADC1
Max Sampling freq
1 MSPS
1 MSPS



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