Information

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STM32F20xxx Revision history
177
9 Revision history
Table 95. Document revision history
Date Revision Changes
05-Jun-2009 1 Initial release.
09-Oct-2009 2
Document status promoted from Target specification to Preliminary
data.
In Table 8: STM32F20x pin and ball definitions:
– Note 4 updated
–V
DD_SA
and V
DD_3
pins inverted (Figure 12: STM32F20x LQFP100
pinout, Figure 13: STM32F20x LQFP144 pinout and Figure 14:
STM32F20x LQFP176 pinout corrected accordingly).
Section 7.1: Package mechanical data changed to LQFP with no
exposed pad.
01-Feb-2010 3
LFBGA144 package removed. STM32F203xx part numbers removed.
Part numbers with 128 and 256 Kbyte Flash densities added.
Encryption features removed.
PC13-TAMPER-RTC renamed to PC13-RTC_AF1 and PI8-TAMPER-
RTC renamed to PI8-RTC_AF2.
13-Jul-2010 4
Renamed high-speed SRAM, system SRAM.
Removed combination: 128 KBytes Flash memory in LQFP144.
Added UFBGA176 package. Added note 1 related to LQFP176
package in Tab le 2, Figure 14, and Table 94.
Added information on ART accelerator and audio PLL (PLLI2S).
Added Table 6: USART feature comparison.
Several updates on Table 8: STM32F20x pin and ball definitions and
Table 10: Alternate function mapping. ADC, DAC, oscillator, RTC_AF,
WKUP and VBUS signals removed from alternate functions and
moved to the “other functions” column in Table 8: STM32F20x pin and
ball definitions.
TRACESWO added in Figure 4: STM32F20x block diagram, Table 8:
STM32F20x pin and ball definitions, and Table 10: Alternate function
mapping.
XTAL oscillator frequency updated on cover page, in Figure 4:
STM32F20x block diagram and in Section 3.11: External
interrupt/event controller (EXTI).
Updated list of peripherals used for boot mode in Section 3.13: Boot
modes.
Added Regulator bypass mode in Section 3.16: Voltage regulator, and
Section 6.3.4: Operating conditions at power-up / power-down
(regulator OFF).
Updated Section 3.17: Real-time clock (RTC), backup SRAM and
backup registers.
Added Note Note: in Section 3.18: Low-power modes.
Added SPI TI protocol in Section 3.23: Serial peripheral interface
(SPI).