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AN4654 Datasheet(PDF) 11 Page - STMicroelectronics

Part # AN4654
Description  Migrating between STM32L1 and STM32L0 series microcontrollers
PDF  32 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN4654 Datasheet(HTML) 11 Page - STMicroelectronics

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AN4654
Peripheral migration
31
EXTI
Yes
Yes+
Some peripherals are able to
generate event in Stop mode
(direct event)
Identical
Full compatibility
DMA
Yes
Yes
Only 1 DMA controller
with up to 7 channels
(DMA2 not present)
NA
Partial compatibility
TIM
Yes
Yes
Different set of timers,
similar functionality
Identical for the same
timers (TIM2, TIM3,
TIM6 and TIM7)
Partial compatibility
PWR
Yes
Yes+
Enhancements:
– Flash off
– Regulator in low power only
in Stop mode
Identical for the same
feature
Partial compatibility
RCC
Yes
Yes+
New features added:
– HSI after stop mode
– crystal-less USB
– HSI48 added
– LSE driving strength
Identical for the same
feature
Partial compatibility
USART
Yes
Yes+
Choice for independent clock
sources, time-out feature,
wake-up from stop mode,
auto-baud rate
Identical
Full compatibility
I2C
Yes
Yes++
Communication events
managed by hardware,
FM+, wake up from stop
mode, digital filter,
independent clock option
Identical
New driver
DAC
Yes
Yes
Same features, only one DAC Identical
Full compatibility
ADC
Yes
Yes++
New analog part, new digital
interface, oversampling
feature, VLCD input, reduced
analog inputs
Identical (for reduced
analog inputs)
New driver
RTC
Yes
Yes+
Same features, tamper pins
configuration extension
Identical
Full compatibility
FLASH
Yes
Yes
Option byte modified
NA
Partial compatibility
GPIO
Yes
Yes
Same features
Identical
Full compatibility
Firewall
NA
Yes
New peripheral
NA
New driver
USB FS
Device
Yes
Yes+
Support low-power mode
(LPM) and battery charging
detection
Identical
Partial compatibility
CRS
NA
Yes
New peripheral
NA
NA
Table 4. STM32 peripheral compatibility analysis, STM32L1 vs. STM32L0 series(1) (continued)
Peripheral
STM32L1 STM32L0
Compatibility
Features
Pinout
Firmware



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