STMicroelectronics STM32F427 User Manual

September 2013 DocID023833 Rev 5 1/36
STM32F42xx and STM32F43xx
Errata sheet
STM32F427/437 and STM32F429/439 line limitations
Silicon identification
This errata sheet applies to the revision A and Y of STMicroelectronics STM32F427/437
and STM32F429/439 microcontroller lines.
The STM32F42xx and STM32F43xx devices feature an ARM
®
32-bit Cortex™-M4 core with
FPU, for which an errata notice is also available (see Section 1 for details).
The full list of part numbers is shown in Table 2. The products are identifiable as shown in
Table 1:
• by the revision code marked below the order code on the device package
• by the last three digits of the Internal order code printed on the box label
Table 1. Device identification
(1)
1. The REV_ID bits in the DBGMCU_IDCODE register show the revision code of the device (see the RM0090
STM32F4xx reference manual for details on how to find the revision code).
Order code Revision code marked on device
(2)
2. Refer to Appendix A: Revision code on device marking for details on how to identify the revision code and
the date code on the different packages.
STM32F427xx, STM32F429xx
“A” and “Y”
STM32F437xx, STM32F439xx
Table 2. Device summary
Reference Part number
STM32F427xx
STM32F427VG, STM32F427ZG, STM32F427IG, STM32F427VI, STM32F427ZI,
STM32F427II
STM32F437xx
STM32F437VG, STM32F437ZG, STM32F437IG, STM32F437VI, STM32F437ZI,
STM32F437II
STM32F429xx
STM32F429VG, STM32F429ZG, STM32F429IG, STM32F429VI, STM32F429ZI,
STM32F429II, STM32F429BG, STM32F429BI, STM32F429NI, STM32F429NG
STM32F439xx
STM32F439VI, STM32F439VG, STM32F439ZG, STM32F439ZI, STM32F439IG,
STM32F439II, STM32F439BG, STM32F439BI, STM32F439NI, STM32F439NG
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STMicroelectronics STM32F427 Specifications

General

Series	STM32F4
Core	ARM Cortex-M4
Max Clock Speed	180 MHz
ADC Channels	Up to 24
ADC Resolution	12-bit
DAC Channels	2
DAC Resolution	12-bit
Timers	17
Communication Interfaces	I2C, SPI, UART, USB, CAN
Operating Voltage	1.8 V to 3.6 V
Operating Temperature	-40°C to 85°C
Package	LQFP100

Summary

ARM 32-bit Cortex-M4 with FPU Limitations

Cortex-M4 Interrupted Loads to Stack Pointer Can Cause Erroneous Behavior

Interrupt during SP load causes erroneous behavior and extra execution of the load instruction.

STM32F42xx and STM32F43xx Silicon Limitations

System Limitations

Limitations related to general system operations, clocking, and debugging modes.

IWDG Peripheral Limitation

Specific limitation concerning the Independent Watchdog Timer (IWDG) in STOP mode.

I2C Peripheral Limitations

Issues found with the Inter-Integrated Circuit (I2C) peripheral functionality.

USART Peripheral Limitations

Problems identified with the Universal Synchronous/Asynchronous Receiver/Transmitter (USART) peripheral.

OTG_FS Peripheral Limitations

Limitations concerning the On-The-Go Full Speed (OTG_FS) peripheral.

Ethernet Peripheral Limitations

Issues related to the Ethernet controller and its functionality.

FMC Peripheral Limitation

Limitations found in the Flexible Memory Controller (FMC) operations.

SDIO Peripheral Limitations

Specific issues with the Secure Digital Input/Output (SDIO) interface.

ADC Peripheral Limitations

Limitations impacting the Analog-to-Digital Converter (ADC) functionality.

DAC Peripheral Limitations

Problems affecting the Digital-to-Analog Converter (DAC) operations.

Revision Code on Device Marking

TFBGA216 Top Package View

Shows the marking composition for the TFBGA216 package, including revision code.

WLCSP143 Top Package View

Illustrates the marking layout for the WLCSP143 package with revision code.

LQFP208 Top Package View

Details the marking structure of the LQFP208 package, including revision code.

UFBGA176 Top Package View

Shows the marking composition for the UFBGA176 package, highlighting the revision code.

LQFP176 Top Package View

Depicts the marking layout for the LQFP176 package, indicating revision code placement.

LQFP144 Top Package View

Presents the marking scheme for the LQFP144 package, showing the revision code field.

LQFP100 Top Package View

Illustrates the marking composition for the LQFP100 package, including the revision code.

Revision History

Document Revision History

Lists changes made to the document across different revisions.