STM32F318C8 datasheet(12/125 Pages) STMICROELECTRONICS

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Functional overview

STM32F318C8 STM32F318K8

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DocID026294 Rev 5

Functional overview

3.1

ARM® Cortex®-M4 core with FPU, embedded Flash and

SRAM

The ARM® Cortex®-M4 processor with FPU is the latest generation of ARM processors for

embedded systems. It was developed to provide a low-cost platform that meets the needs of

MCU implementation, with a reduced pin count and low-power consumption, while

delivering outstanding computational performance and an advanced response to interrupts.

The ARM® Cortex®-M4 32-bit RISC processor with FPU features exceptional code-

efficiency, delivering the high-performance expected from an ARM core in the memory size

usually associated with 8- and 16-bit devices.

The processor supports a set of DSP instructions which allow efficient signal processing and

complex algorithm execution. Its single-precision FPU speeds up software development by

using metalanguage development tools while avoiding saturation.

With its embedded ARM core, the STM32F318x8 family is compatible with all ARM tools

and software.

Figure 1

shows the general block diagram of the STM32F318x8 family devices.

3.2

Memories

3.2.1

Embedded Flash memory

All STM32F318x8 devices feature 64 Kbyte of embedded Flash memory available for

storing programs and data. The Flash memory access time is adjusted to the CPU clock

frequency (0 wait state from 0 to 24 MHz, 1 wait state from 24 to 48 MHz and 2 wait states

above).

3.2.2

Embedded SRAM

STM32F318x8 devices feature 16 Kbyte of embedded SRAM.

3.3

Boot modes

At startup, BOOT0 pin and BOOT1 option bit are used to select one of three boot options:



Boot from user Flash



Boot from system memory



Boot from embedded SRAM

The boot loader is located in system memory. It is used to reprogram the Flash memory by

using USART1 (PA9/PA10) or USART2 (PA2/Pa3) or I2C1 (PB6/PB7) or I2C3 (PA8, PB5).

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