Table 27. Adc Differences Between Stm32L1 Series And Stm32L4 Series - ST STM32L1 Series Application Note

Peripheral migration
Table 26. USB differences between STM32L1 Series and STM32L4 Series (continued)
USB
Configuration
Color key:
= New feature or new architecture (difference between STM32L1 and STM32L4 Series)
= Same feature, but specification change or enhancement
= Feature not available (NA)
= Difference between STM32L1 and STM32L4 Series highlight
On STM32L4 Cat. 4 devices, the USB is Full Speed device only.
On STM32L4 Cat. 4 devices, a Clock Recovery System (CRS) block is included that can
provide a precise clock to the USB peripheral.
4.19 ADC
The table below presents the differences between the ADC peripheral of STM32L1 Series
and STM32L4 Series, these differences are the following:
• New digital interface
•
New architecture and new features.

Table 27. ADC differences between STM32L1 Series and STM32L4 Series

ADC
ADC Type
Instances ADC1
Maximum sampling
1 Msps
frequency
Number of
up to 42 channels
channels
Resolution 12-bit
Conversion Modes Single / continuous / scan / discontinuous
DMA
52/58
STM32L1 Series
-
STM32L1 Series
DocID027094 Rev 3
STM32L4 Series
In STM32L4 Series the registers are different.
Please refer to reference manuals for details.
STM32L4 Series
SAR structure
3 instances (Cat. 2 devices)
1 instance (Cat. 4 devices)
5.1 Msps (fast channels)
4.8 Msps (slow channels)
Up to 19 channels per ADC
12-bit + digital oversampling up to 16-bit
Single / continuous / scan / discontinuous
dual mode
Yes
AN4612