True random number generator (RNG) RM0401
258/771 RM0401 Rev 3
13.3 RNG functional description
13.3.1 RNG block diagram
Figure 47 shows the RNG block diagram.
Figure 47. RNG block diagram
13.3.2 RNG internal signals
Table 54 describes a list of useful-to-know internal signals available at the RNG level, not at
the STM32 product level (on pads).
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Table 54. RNG internal input/output signals
Signal name Signal type Description
rng_it Digital output RNG global interrupt request
rng_hclk - Digital input AHB - clock
rng_clk Digital input RNG dedicated clock, asynchronous to rng_hclk -