STM32L412R8I3P datasheet(163/192 Pages) STMICROELECTRONICS

部件名	STM32L412R8I3P

功能描述	Ultra-low-power Arm® Cortex®-M4 32-bit MCUFPU, 100DMIPS, up to 128KB Flash, 40KB SRAM, analog, ext. SMPS

PDF	192 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

163 / 192 page

DS12469 Rev 4

163/192

STM32L412xx

Electrical characteristics

163

Figure 34. Quad SPI timing diagram - SDR mode

Figure 35. Quad SPI timing diagram - DDR mode

USB characteristics

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

certified (for Full-speed device operation).

Table 93. USB electrical characteristics(1)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VDDUSB

USB transceiver operating voltage

3.0(2)

-3.6

Tcrystal_less USB crystal less operation temperature

-15

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(3)

Output driver impedance(4)

Driving high

and low

Ω

1. TA = -40 to 125 °C unless otherwise specified.

2. The STM32L412xx 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.

3. Guaranteed by design.

4. 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.

STM32L412R8I3P 数据表(PDF) 163 Page - STMicroelectronics

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