STM32MP157F datasheet(230/260 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32MP157C/F

230/260

DS12505 Rev 5

Figure 56. DDR mode

FDCAN (controller area network) interface

Refer to Section 6.3.17: I/O port characteristics for more details on the input/output alternate

function characteristics (FDCANx_TX and FDCANx_RX).

USB OTG_FS characteristics

The USB interface is fully compliant with the USB specification version 2.0 and is USB-IF

certified (for Full-speed device operation).

Note:

When VBUS sensing feature is enabled, a typical 200 μA input current (required to

determine the different sessions validity according to USB standard) can be observed.

Ethernet (ETH) characteristics

Unless otherwise specified, the parameters given in Table 107, Table 108, Table 109,

Table 110 and Table 111 for MDIO/SMA, RMII, GMII, RGMII and MII are derived from tests

performed under the ambient temperature, Faxiss_ck frequency summarized in Table 13:

General operating conditions, with the following configuration:

•

Output speed is set to OSPEEDRy[1:0] = 10

•

Capacitive load C = 20 pF

•

Measurement points are done at CMOS levels: 0.5×VDD.

MSv63044V1

Data output

Clock

Data input

t(CK)

tw(CKH)

tw(CKL)

tr(CK)

tf(CK)

tsf(IN) thf(IN)

tvf(OUT)

thr(OUT)

tvr(OUT)

thf(OUT)

tsr(IN) thr(IN)

Table 106. USB OTG_FS electrical characteristics

Symbol

Parameter

Condition

Min

Typ

Max

Unit

VDD33USB

USB transceiver operating

voltage

-3.0(1)

-3.6

RPUI

Embedded USB_DP pull-up

value during idle

900

1250

1600

Ω

RPUR

Embedded USB_DP pull-up

value during reception

1400

2300

3200

ZDRV

Output driver impedance(2)

Driver high and low

1. The USB functionality is ensured down to 2.7 V but not the full USB electrical characteristics which are degraded in the 2.7

to 3.0 V voltage range.

2. No external termination series resistors are required on USB_DP (D+) and USB_DM (D-); the matching impedance is

already included in the embedded driver.

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