Datasheet

Electrical characteristics STM32H743xI

138/231 DS12110 Rev 5

6.3.17 FMC characteristics

Unless otherwise specified, the parameters given in Table 64 to Table 77 for the FMC

interface are derived from tests performed under the ambient temperature, f

rcc_c_ck

frequency and V

supply voltage conditions summarized in Table 23: General operating

conditions, with the following configuration:

 Output speed

is set to OSPEEDRy[1:0] = 11

 Measurement points are done at CMOS levels: 0.5V

Refer to Section 6.3.15: I/O port characteristics for more details on the input/output

characteristics.

Asynchronous waveforms and timings

Figure 23 through Figure 26 represent asynchronous waveforms and Table 64 through

Table 71 provide the corresponding timing

s. The results shown in these tables are obtained

with the following FMC co

nfiguration:

 Add

ressSetupTime = 0x1

 AddressHoldTime = 0x1

 DataSetupTime = 0x1 (except for asynchronous NWAIT mode, DataSetupTime = 0x5)

 BusTurnAroundDuration = 0x0

 Capcitive load CL = 30 pF

In all timing tables, the T

KERCK

is the fmc_ker_ck clock period.