STM32F777XX Datasheet, PDF (164/255 Pages) STMicroelectronics – Dual mode Quad-SPI

Electrical characteristics
STM32F777xx STM32F778Ax STM32F779xx
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Figure 38. FT I/O input characteristics










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Output driving current
The GPIOs (general purpose input/outputs) can sink or source up to ±8 mA, and sink or
source up to ±20 mA (with a relaxed V_OL/V_OH) except PC13, PC14, PC15 and PI8 which
can sink or source up to ±3mA. When using the PC13 to PC15 and PI8 GPIOs in output
mode, the speed should not exceed 2 MHz with a maximum load of 30 pF.
In the user application, the number of I/O pins which can drive current must be limited to
respect the absolute maximum rating specified in Section 5.2. In particular:
• The sum of the currents sourced by all the I/Os on V_DD, plus the maximum Run
consumption of the MCU sourced on V_DD, cannot exceed the absolute maximum rating
ΣI_VDD (see Table 15).
• The sum of the currents sunk by all the I/Os on V_SS plus the maximum Run
consumption of the MCU sunk on V_SS cannot exceed the absolute maximum rating
ΣI_VSS (see Table 15).
Output voltage levels
Unless otherwise specified, the parameters given in Table 66 are derived from tests
performed under ambient temperature and V_DD supply voltage conditions summarized in
Table 17. All I/Os are CMOS and TTL compliant.
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