RM0440 Rev 4 73/2126
RM0440 Documentation conventions
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1.3 Glossary
This section gives a brief definition of acronyms and abbreviations used in this document:
• Word: data of 32-bit length.
• Half-word: data of 16-bit length.
• Byte: data of 8-bit length.
• IAP (in-application programming): IAP is the ability to re-program the Flash memory
of a microcontroller while the user program is running.
• ICP (in-circuit programming): ICP is the ability to program the Flash memory of a
microcontroller using the JTAG protocol, the SWD protocol or the bootloader while the
device is mounted on the user application board.
• Option bytes: product configuration bits stored in the Flash memory.
• AHB: advanced high-performance bus.
1.4 Product category definition
Table 1 gives an overview of memory density versus product line.
The present reference manual describes the superset of features for each product category.
Refer to Table 2 for the list of features per category.
1.5 Availability of peripherals
Table 2: Product specific features summarizes the list of peripherals available in all the
STM32G4xx products considering the biggest package in every product.
For availability of peripherals and their number across all sales types, refer to the particular
device datasheet.
Table 1. STM32G4 Series memory density
Memory density Category 2 Category 3 Category 4
128 Kbytes
STM32G431
STM32G441 (AES)
STM32G471
STM32G473
STM32G474
-
256 Kbytes -
STM32G471
STM32G473
STM32G474
-
512 Kbytes -
STM32G471
STM32G473
STM32G474
STM32G483 (AES)
STM32G484 (AES)
STM32G491
STM32G4A1 (AES)
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