STM32F102XB datasheet(55/80 Pages) STMICROELECTRONICS

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DocID15056 Rev 5

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STM32F102x8, STM32F102xB

Electrical characteristics

Output voltage levels

Unless otherwise specified, the parameters given in Table 37 are derived from tests

performed under ambient temperature and VDD supply voltage conditions summarized in

Table 8. All I/Os are CMOS and TTL compliant.

Table 35. Output voltage characteristics

Symbol

Parameter

Conditions

Min

Max

Unit

VOL(1)

1. The IIO current sunk by the device must always respect the absolute maximum rating specified in Table 6

and the sum of IIO (I/O ports and control pins) must not exceed IVSS.

Output Low level voltage for an I/O pin

when 8 pins are sunk at the same time

CMOS port(2),

IIO = +8 mA,

2.7 V < VDD < 3.6 V

2. TTL and CMOS outputs are compatible with JEDEC standards JESD36 and JESD52.

0.4

VOH(3)

3. The IIO current sourced by the device must always respect the absolute maximum rating specified in

Table 6 and the sum of IIO (I/O ports and control pins) must not exceed IVDD.

Output High level voltage for an I/O pin

when 8 pins are sourced at the same time

VDD–0.4

VOL(1)

Output low level voltage for an I/O pin

when 8 pins are sunk at the same time

TTL port(2)

IIO = +8 mA

2.7 V < VDD < 3.6 V

0.4

VOH(3)

Output high level voltage for an I/O pin

when 8 pins are sourced at the same time

2.4

VOL(1)

Output low level voltage for an I/O pin

when 8 pins are sunk at the same time

IIO = +20 mA(4)

2.7 V < VDD < 3.6 V

4. Based on characterization data, not tested in production.

1.3

VOH (3)

Output high level voltage for an I/O pin

when 8 pins are sourced at the same time

VDD–1.3

VOL(1)

Output low level voltage for an I/O pin

when 8 pins are sunk at the same time

IIO = +6 mA(4)

2 V < VDD < 2.7 V

0.4

VOH(3)

Output high level voltage for an I/O pin

when 8 pins are sourced at the same time

VDD–0.4

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