Datasheet

DS12556 Rev 2 29/201
STM32H750VB STM32H750IB STM32H750XB Functional overview
48
3.15 Flexible memory controller (FMC)
The FMC controller main features are the following:
• Interface with static-memory mapped devices including:
– Static random access memory (SRAM)
– NOR Flash memory/OneNAND Flash memory
– PSRAM (4 memory banks)
– NAND Flash memory with ECC hardware to check up to 8 Kbytes of data
• Interface with synchronous DRAM (SDRAM/Mobile LPSDR SDRAM) memories
• 8-,16-,32-bit data bus width
• Independent Chip Select control for each memory bank
• Independent configuration for each memory bank
• Write FIFO
• Read FIFO for SDRAM controller
• The maximum FMC_CLK/FMC_SDCLK frequency for synchronous accesses is the
FMC kernel clock divided by 2.
3.16 Quad-SPI memory interface (QUADSPI)
All devices embed a Quad-SPI memory interface, which is a specialized communication
interface targeting Single, Dual or Quad-SPI Flash memories. It supports both single and
double datarate operations.
It can operate in any of the following modes:
• Direct mode through registers
• External Flash status register polling mode
• Memory mapped mode.
Up to 256 Mbytes of external Flash memory can be mapped, and 8-, 16- and 32-bit data
accesses are supported as well as code execution.
The opcode and the frame format are fully programmable.
3.17 Analog-to-digital converters (ADCs)
The STM32H750xB devices embed three analog-to-digital converters, which resolution can
be configured to 16, 14, 12, 10 or 8 bits. The sampling rates are respectively 3.6
MSPS,
4
MSPS, 4.5 MSPS, 5 MSPS and 6 MSPS when the ADC frequency (f
ADC
) is 36 MHz.
Each ADC shares up to 20 external channels, performing conversions in the Single-shot or
Scan mode. In Scan mode, automatic conversion is performed on a selected group of
analog inputs.
Additional logic functions embedded in the ADC interface allow:
• Simultaneous sample and hold
• Interleaved sample and hold
The ADC can be served by the DMA controller, thus allowing to automatically transfer ADC
converted values to a destination location without any software action.
Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.