STM32F405RGT6 STMicroelectronics, STM32F405RGT6 Datasheet - Page 20

• Manufacturer Part Number: STM32F405RGT6
• Description: Microcontrollers (MCU) ARM M4 1024 FLASH 168 Mhz 192kB SRAM
• Manufacturer: STMicroelectronics

Specifications of STM32F405RGT6

• Core: ARM Cortex M4
• Processor Series: STM32F4
• Data Bus Width: 32 bit
• Maximum Clock Frequency: 168 MHz
• Program Memory Size: 1024 KB
• Data Ram Size: 192 KB
• On-chip Adc: Yes
• Number Of Programmable I/os: 51
• Number Of Timers: 10
• Operating Supply Voltage: 1.7 V to 3.6 V
• Package / Case: LQFP-64
• Mounting Style: SMD/SMT
• A/d Bit Size: 12 bit
• A/d Channels Available: 16
• Interface Type: CAN, I2C, I2S, SPI, UART
• Program Memory Type: Flash
• Lead Free Status / Rohs Status: Details

Description
Figure 6.
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Multi-AHB matrix
DMA controller (DMA)
The devices feature two general-purpose dual-port DMAs (DMA1 and DMA2) with 8
streams each. They are able to manage memory-to-memory, peripheral-to-memory and
memory-to-peripheral transfers. They feature dedicated FIFOs for APB/AHB peripherals,
support burst transfer and are designed to provide the maximum peripheral bandwidth
(AHB/APB).
The two DMA controllers support circular buffer management, so that no specific code is
needed when the controller reaches the end of the buffer. The two DMA controllers also
have a double buffering feature, which automates the use and switching of two memory
buffers without requiring any special code.
Each stream is connected to dedicated hardware DMA requests, with support for software
trigger on each stream. Configuration is made by software and transfer sizes between
source and destination are independent.
Doc ID 022152 Rev 2
STM32F405xx, STM32F407xx