STM32G0 datasheet(82/135 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32G071x8/xB

82/135

DS12232 Rev 4

Table 21: General operating conditions. All I/Os are CMOS- and TTL-compliant (FT OR TT

unless otherwise specified).

Input/output AC characteristics

The definition and values of input/output AC characteristics are given in Figure 22 and

Table 53, respectively.

Unless otherwise specified, the parameters given are derived from tests performed under

the ambient temperature and supply voltage conditions summarized in Table 21: General

operating conditions.

Table 52. Output voltage characteristics(1)

Symbol

Parameter

Conditions

Min

Max

Unit

VOL

Output low level voltage for an I/O pin

CMOS port(2)

|IIO| = 2 mA for FT_c I/Os

= 6 mA for other I/Os

VDDIO1 ≥ 2.7 V

-0.4

VOH

Output high level voltage for an I/O pin

VDDIO1 - 0.4

VOL(3) Output low level voltage for an I/O pin

TTL port(2)

|IIO| = 2 mA for FT_c I/Os

= 6 mA for other I/Os

VDDIO1 ≥ 2.7 V

-0.4

VOH(3) Output high level voltage for an I/O pin

2.4

VOL(3) Output low level voltage for an I/O pin

All I/Os except FT_c

|IIO| = 15 mA

VDDIO1 ≥ 2.7 V

-1.3

VOH(3) Output high level voltage for an I/O pin

VDDIO1 - 1.3

VOL(3) Output low level voltage for an I/O pin

|IIO| = 1 mA for FT_c I/Os

= 3 mA for other I/Os

VDDIO1 ≥ 1.62 V

-0.4

VOH(3) Output high level voltage for an I/O pin

VDDIO1 - 0.45

VOLFM+

(3)

Output low level voltage for an FT I/O

pin in FM+ mode (FT I/O with _f option)

|IIO| = 20 mA

VDDIO1 ≥ 2.7 V

-0.4

|IIO| = 9 mA

VDDIO1 ≥ 1.62 V

-0.4

1. The IIO current sourced or sunk by the device must always respect the absolute maximum rating specified in Table 18:

Voltage characteristics, and the sum of the currents sourced or sunk by all the I/Os (I/O ports and control pins) must always

respect the absolute maximum ratings ΣIIO.

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

3. Guaranteed by design.

Table 53. I/O AC characteristics(1)(2)

Speed Symbol

Parameter

Conditions

Min

Max

Unit

Fmax

Maximum frequency

C=50 pF, 2.7 V ≤ VDDIO1 ≤ 3.6 V

MHz

C=50 pF, 1.6 V ≤ VDDIO1 ≤ 2.7 V

0.35

C=10 pF, 2.7 V ≤ VDDIO1 ≤ 3.6 V

C=10 pF, 1.6 V ≤ VDDIO1 ≤ 2.7 V

0.45

Tr/Tf

Output rise and fall time

C=50 pF, 2.7 V ≤ VDDIO1 ≤ 3.6 V

100

C=50 pF, 1.6 V ≤ VDDIO1 ≤ 2.7 V

225

C=10 pF, 2.7 V ≤ VDDIO1 ≤ 3.6 V

C=10 pF, 1.6 V ≤ VDDIO1 ≤ 2.7 V

150

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