AN4228 datasheet(7/90 Pages) STMICROELECTRONICS

7 / 90 page

DocID024110 Rev 5

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AN4228

Hardware migration

Considering the 48-/64-/100-pin packages, the migration from STM32F1 to STM32F30xx

has no impact on the pinout, except that users gain additional GPIOs for their application.

Table 4 shows the LQFP144 pinout compatibility between STM32F302/F303xD/E and

STM32F103xx products.

PB2/BOOT1

PB2

One additional I/O.

The bootloader

strategy has

changed in the

STM32F30xx and

BOOT1 is not

necessary anymore.

The boot memory

(RAM, Flash or

System memory) is

selectable through

an option bit.

Not Connected

PF6

One additional I/O

Table 3. Main pinout differences between STM32F10x and STM32F30x lines (continued)

STM32F10xxx

STM32F302xB/C

STM32F303xB/C

STM32F302xD/E

STM32F303xD/E

STM32F302x6/8

STM32F301x6/8

STM32F303x6/8

Comments

Table 4. LQFP144 pinout in STM32F103xx and STM32F30xxD/E

LQFP144

STM32F103xx

STM32F302xD/E,

STM32F303xD/E

PF0

PH0

PF1

PH1

OSC_IN

PF0/OSC_IN

OSC_OUT

PF1/OSC_OUT

106

Not connected

PH2

Table 5. Main pinout differences between STM32F373xx and STM32F103xx

Pin number

for 48-pin

package

Pin number

for 64-pin

package

Pin number

for 100-pin

package

STM32F373xx

STM32F103xx

Comments

PF9

VSS

PF10

VDD

PF2

VSSA

VDDA

VREF+

Supply compatible

913

VREF+/VDDA

VDDA

Supply compatible

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