Electrical characteristics
STM32F103x8, STM32F103xB
Figure 27. 5 V tolerant I/O input characteristics - CMOS port
6
ꢐ6 ꢃ6ꢄ
)( ),
ꢀꢅꢉꢁ
ꢀꢅꢊꢊ
ꢀꢅꢀꢉ
)NPUT RANGE
NOT GUARANTEED
ꢀ
ꢀꢅꢍꢂ
ꢀꢅꢇꢁ
ꢀꢅꢆ
ꢇꢅꢁ
ꢀꢅꢂꢋꢊ
ꢇꢅꢋꢁꢊ
ꢀ
ꢇꢅꢁꢊ
6
ꢃ6ꢄ
$$
ꢂ
ꢂꢅꢁ
ꢆ
ꢆꢅꢆ
ꢆꢅꢉ
6$$
AIꢀꢁꢂꢁꢋB
Figure 28. 5 V tolerant I/O input characteristics - TTL port
6
ꢐ6 ꢃ6ꢄ
)( ),
44, REQUIREMENT 6 ꢌꢂ6
)(
ꢂꢅꢇ
ꢀꢅꢉꢁ
ꢀ
)NPUT RANGE
NOT GUARANTEED
7)(MIN
7),MAX
ꢇꢅꢈ
ꢇꢅꢁꢊ
44, REQUIREMENTS 6 ꢌꢇꢅꢈ6
),
6
ꢃ6ꢄ
$$
ꢂ
ꢂꢅꢀꢉ
ꢆꢅꢉ
AIꢀꢁꢂꢈꢇ
Output driving current
The GPIOs (general-purpose inputs/outputs) can sink or source up to 8 mA, and sink or
source up to 20 mA (with a relaxed V /V ).
OL OH
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:
●
The sum of the currents sourced by all the I/Os on V
plus the maximum Run
DD,
consumption of the MCU sourced on V
cannot exceed the absolute maximum rating
DD,
I
(see Table 7).
VDD
●
The sum of the currents sunk by all the I/Os on V plus the maximum Run
SS
consumption of the MCU sunk on V cannot exceed the absolute maximum rating
SS
I
(see Table 7).
VSS
60/96
Doc ID 13587 Rev 12
STMICROELECTRONICS [ ST ]
