STM32F401CC datasheet(112/134 Pages) STMICROELECTRONICS

No. de pieza	STM32F401CC

Descripción Electrónicos	Up to 81 I/O ports with interrupt capability

PDF	134 Pages

Scroll/Zoom	100%

Fabricante Electrónico	STMICROELECTRONICS [STMicroelectronics]

Página de inicio	http://www.st.com

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112 / 134 page

Electrical characteristics

STM32F401xB STM32F401xC

112/134

DocID024738 Rev 5

Refer to Section 6.3.16: I/O port characteristics for more details on the input/output

characteristics.

Figure 44. SDIO high-speed mode

Figure 45. SD default mode

tW(CKH)

D, CMD

(output)

D, CMD

(input)

tW(CKL)

tOV

tOH

tISU

tIH

ai14887

D, CMD

(output)

tOVD

tOHD

ai14888

Table 77. Dynamic characteristics: SD / MMC characteristics(1)(2)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

fPP

Clock frequency in data transfer mode

MHz

SDIO_CK/fPCLK2 frequency ratio

8/3

tW(CKL)

Clock low time

fpp = 48MHz

8.5

tW(CKH)

Clock high time

fpp = 48MHz

8.3

CMD, D inputs (referenced to CK) in MMC and SD HS mode

tISU

Input setup time HS

fpp = 48MHz

3.5

tIH

Input hold time HS

fpp = 48MHz

CMD, D outputs (referenced to CK) in MMC and SD HS mode

tOV

Output valid time HS

fpp = 48MHz

4.5

tOH

Output hold time HS

fpp = 48MHz

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