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DS9118 Rev 14 53/149
STM32F303xB STM32F303xC Memory mapping
55
5 Memory mapping
Figure 8. STM32F303xB/STM32F303xC memory map 
0xFFFF FFFF
0xE000 0000
0xC000 0000
0xA000 0000
0x8000 0000
0x6000 0000
0x4000 0000
0x2000 0000
0x0000 0000
0
1
2
3
4
5
6
7
Cortex-M4 
with FPU 
Internal 
Peripherals
Peripherals
SRAM
CODE
Option bytes
System memory
CCM RAM
Flash memory
Flash, system 
memory or SRAM, 
depending on BOOT 
configuration
AHB2
AHB1
APB2
APB1
0x5000 0000
0x4800 1800
0x4800 0000
0x4002 43FF
0x4002 0000
0x4001 6C00
0x4001 0000
0x4000 A000
0x4000 0000
0x1FFF FFFF
0x1FFF F800
0x1FFF D800
0x1000 2000
0x0804 0000
0x0800 0000
0x0004 0000
0x0000 0000
0x1000 0000
Reserved
MSv30355V2
AHB3
0x5000 07FF
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
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