Datasheet

Functional overview STM32L452xx
44/210 DocID029968 Rev 3
without having any impact on the timing of “injected” conversions
– “injected” conversions for precise timing and with high conversion priority
3.22 Random number generator (RNG)
All devices embed an RNG that delivers 32-bit random numbers generated by an integrated
analog circuit.
3.23 Timers and watchdogs
The STM32L452xx includes one advanced control timers, up to five general-purpose timers,
two basic timers, two low-power timers, two watchdog timers and a SysTick timer. The table
below compares the features of the advanced control, general purpose and basic timers.
Table 10. DFSDM1 implementation
DFSDM features DFSDM1
Number of channels 8
Number of filters 4
Input from internal ADC -
Supported trigger sources 10
Pulses skipper -
ID registers support -
Table 11. Timer feature comparison
Timer type Timer
Counter
resolution
Counter
type
Prescaler
factor
DMA
request
generation
Capture/
compare
channels
Complementary
outputs
Advanced
control
TIM1 16-bit
Up, down,
Up/down
Any integer
between 1
and 65536
Yes 4 3
General-
purpose
TIM2 32-bit
Up, down,
Up/down
Any integer
between 1
and 65536
Yes 4 No
General-
purpose
TIM3 16-bit
Up, down,
Up/down
Any integer
between 1
and 65536
Yes 4 No
General-
purpose
TIM15 16-bit Up
Any integer
between 1
and 65536
Yes 2 1
General-
purpose
TIM16 16-bit Up
Any integer
between 1
and 65536
Yes 1 1
Basic TIM6 16-bit Up
Any integer
between 1
and 65536
Yes 0 No
Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.