STM32F401CDU6 datasheet(16/135 Pages) STMICROELECTRONICS

tên linh kiện	STM32F401CDU6

Giải thích chi tiết về linh kiện	Clock, reset and supply management

PDF	135 Pages

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nhà sản xuất	STMICROELECTRONICS [STMicroelectronics]

Trang chủ	http://www.st.com

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16 / 135 page

Functional overview

STM32F401xD STM32F401xE

16/135

DocID025644 Rev 3

3.4

Embedded Flash memory

The devices embed 512 Kbytes of Flash memory available for storing programs and data.

3.5

CRC (cyclic redundancy check) calculation unit

The CRC (cyclic redundancy check) calculation unit is used to get a CRC code from a 32-bit

data word and a fixed generator polynomial.

Among other applications, CRC-based techniques are used to verify data transmission or

storage integrity. In the scope of the EN/IEC 60335-1 standard, they offer a means of

verifying the Flash memory integrity. The CRC calculation unit helps compute a software

signature during runtime, to be compared with a reference signature generated at link-time

and stored at a given memory location.

3.6

Embedded SRAM

All devices embed:

•

96 Kbytes of system SRAM which can be accessed (read/write) at CPU clock speed

with 0 wait states

3.7

Multi-AHB bus matrix

The 32-bit multi-AHB bus matrix interconnects all the masters (CPU, DMAs) and the slaves

(Flash memory, RAM, AHB and APB peripherals) and ensures a seamless and efficient

operation even when several high-speed peripherals work simultaneously.

STM32F401CDU6 bảng dữ liệu(PDF) 16 Page - STMicroelectronics