STM32L031X4 datasheet(82/126 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32L031x4/6

82/126

DS10668 Rev 6

Output voltage levels

Unless otherwise specified, the parameters given in Table 54 are derived from tests

performed under ambient temperature and VDD supply voltage conditions summarized in

Table 20. All I/Os are CMOS and TTL compliant.

Table 54. 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 18. The sum of the currents sunk by all the I/Os (I/O ports and control pins) must always be

respected and must not exceed ΣIIO(PIN).

Output low level voltage for an I/O

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 18. The sum of the currents sourced by all the I/Os (I/O ports and control pins) must always be

respected and must not exceed ΣIIO(PIN).

Output high level voltage for an

I/O pin

VDD–0.4

VOL (1)

Output low level voltage for an I/O

TTL port(2),

IIO =+ 8 mA

2.7 V

≤ VDD ≤ 3.6 V

-0.4

VOH (3)(4)

4. Guaranteed by characterization results.

Output high level voltage for an

I/O pin

TTL port(2),

IIO = –6 mA

2.7 V

≤ VDD ≤ 3.6 V

2.4

VOL(1)(4)

Output low level voltage for an I/O

IIO = +15 mA

2.7 V

≤ VDD ≤ 3.6 V

-1.3

VOH(3)(4)

Output high level voltage for an

I/O pin

IIO = –15 mA

2.7 V

≤ VDD ≤ 3.6 V

VDD–1.3

VOL(1)(4)

Output low level voltage for an I/O

IIO = +4 mA

1.65 V

≤ VDD< 3.6 V

-0.45

VOH(3)(4)

Output high level voltage for an

I/O pin

IIO = –4 mA

1.65 V

≤ VDD ≤ 3.6 V

VDD–

0.45

VOLFM+(1)(4)

Output low level voltage for an FTf

I/O pin in Fm+ mode

IIO = 20 mA

2.7 V

≤ VDD ≤ 3.6 V

-0.4

IIO = 10 mA

1.65 V

≤ VDD ≤ 3.6 V

-0.4

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