STM32F217VG datasheet(140/173 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32F21xxx

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Doc ID 17050 Rev 8

5.3.26

Camera interface (DCMI) timing specifications

5.3.27

SD/SDIO MMC card host interface (SDIO) characteristics

Unless otherwise specified, the parameters given in Table 82 are derived from tests

performed under ambient temperature, fPCLKx frequency and VDD supply voltage conditions

summarized in Table 11.

Refer to Section 5.3.16: I/O port characteristics for more details on the input/output alternate

function characteristics (D[7:0], CMD, CK).

Figure 71.

SDIO high-speed mode

Table 80.

Switching characteristics for NAND Flash write cycles(1)(2)

CL = 30 pF.

Based on characterization, not tested in production.

Symbol

Parameter

Min

Max

Unit

tw(NWE)

FSMC_NWE low width

4THCLK- 1

4THCLK+ 3

tv(NWE-D)

FSMC_NWE low to FSMC_D[15-0] valid

th(NWE-D)

FSMC_NWE high to FSMC_D[15-0] invalid

3THCLK

-ns

td(D-NWE)

FSMC_D[15-0] valid before FSMC_NWE high

5THCLK

-ns

td(ALE-NWE)

FSMC_ALE valid before FSMC_NWE low

3THCLK+ 2

th(NWE-ALE)

FSMC_NWE high to FSMC_ALE invalid

3THCLK- 2

Table 81.

DCMI characteristics

Symbol

Parameter

Conditions

Min

Max

Frequency ratio

DCMI_PIXCLK/

fHCLK

DCMI_PIXCLK= 48 MHz

0.4

tW(CKH)

D, CMD

(output)

D, CMD

(input)

tW(CKL)

tOV

tOH

tISU

tIH

ai14887

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