Embedded Flash Memory; Flash Main Features; Flash Memory Functional Description; Flash Memory Organization - STMicroelectronics RM0365 Reference Manual

Embedded Flash memory

4 Embedded Flash memory
4.1

Flash main features

Up to 512 Kbytes of Flash memory in STM32F302xD/E, up to 256 Kbytes of Flash memory
in STM32F302xB/C devices and up to 64 Kbytes of Flash memory in STM32F302x6/8
devices.
•
Memory organization:
–
–
Flash memory interface (FLITF) features:
•
Read interface with prefetch buffer (2 × 64-bit words)
•
Option byte loader
•
Flash program/Erase operation
•
Read/Write protection
•
low-power mode
4.2

Flash memory functional description

4.2.1

Flash memory organization

The Flash memory is organized as 64-bit wide memory cells that can be used for storing
both code and data constants.
The memory organization is based on a main memory block containing 128 pages of
2 Kbytes in STM32F302xB/C devices, 256 pages of 2 Kbytes in STM32F302xD/E devices,
32 pages of 2 Kbytes in the STM32F302x6/8. and an information block as shown in
57/1080
Main memory block:
64 Kbit x 64 bits in STM32F302xD/E, 32 Kbits × 64 bits in STM32F302xB/C
devices.
8 Kbit x 64 bits in STM32F302x6/8 devices.
Information block:
1280 × 64 bits
DocID025202 Rev 7
RM0365
Table 6.