STM32H7 datasheet(284/357 Pages) STMICROELECTRONICS

Part #	STM32H7

Description	32-bit Arm® Cortex®-M7 480MHz MCUs, up to 2MB flash, up to 1MB RAM, 46 com. and analog interfaces

PDF	357 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

Logo

284 / 357 page

Electrical characteristics (rev V)

STM32H742xI/G STM32H743xI/G

284/357

DS12110 Rev 10

General PCB design guidelines

Power supply decoupling should be performed as shown in Figure 94 or Figure 95,

depending on whether VREF+ is connected to VDDA or not. The 100 nF capacitors should be

ceramic (good quality). They should be placed them as close as possible to the chip.

Figure 94. Power supply and reference decoupling (VREF+ not connected to VDDA)

1. VREF+ input is available on all package whereas the VREF– s available only on UFBGA176+25 and

TFBGA240+25. When VREF- is not available, it is internally connected to VDDA and VSSA.

Figure 95. Power supply and reference decoupling (VREF+ connected to VDDA)

1. VREF+ input is available on all package whereas the VREF– s available only on UFBGA176+25 and

TFBGA240+25. When VREF- is not available, it is internally connected to VDDA and VSSA.

MSv50648V2

1 μF // 100 nF

STM32

VREF+

(1)

VSSA/VREF-

(1)

VDDA

MSv50649V1

1 μF // 100 nF

STM32

VREF+/VDDA

(1)

VREF-/VSSA

(1)

STM32H7 Datasheet(PDF) 284 Page - STMicroelectronics