Interface; 32-Bit Sdram; Description; Operating Voltage - ST STM32H7B3I-EVAL User Manual

7.5.3

Limitations and hardware configuration

I2C2 (PH4/PH5) is shared between EXT I
audio codec U48, MB1379 camera module CN2, and MB1370 LCD touch panel CN30.
7.5.4

Interface

Pin number
1
2
3
4
7.6

32-bit SDRAM

7.6.1

Description

8 Mx32bit SDRAM ISSI IS42S32800J-6BLI is connected to SDRAM bank1 of FMC interface of
STM32H7B3LIH6QU.
7.6.2

Operating voltage

The STM32H7B3LIH6QU FMC interface (SDRAM, SRAM, and NOR) can only be at 3.3 V on this board.
7.6.3 Limitations and hardware configuration
Limitation with secondary function: OCSPI2.
UM2662 - Rev 1
2
C module CN24, MB1486 Wi‑Fi
2
Figure 26. EXT I C connector CN24
1
2
2
Table 31. EXT I C connector CN24
Description
I2C2_SDA (PH5)
NC
I2C2_SCL (PH4)
RESET (MFX_GPO6)
®
module U24, MFX I/O expander U25,
7
8
Pin number
5
6
7
8
UM2662
32-bit SDRAM
Description
+3V3
NC
GND
NC
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