STM32G474CB datasheet(136/232 Pages) STMICROELECTRONICS

136 / 232 page

Electrical characteristics

STM32G474xB STM32G474xC STM32G474xE

136/232

DS12288 Rev 1

Output voltage levels

Unless otherwise specified, the parameters given in the table below are derived from tests

performed under the ambient temperature and supply voltage conditions summarized in

Table 17: 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 25 and

Table 59, respectively.

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

the ambient temperature and supply voltage conditions summarized in Table 17: General

operating conditions.

Table 58. Output voltage characteristics(1)(2)

Symbol

Parameter

Conditions

Min

Max

Unit

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

|IIO| = 2 mA for FT_c

I/Os = 8 mA for other I/Os VDD

≥ 2.7 V

-0.4

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

VDD-0.4

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

|IIO| = 2 mA for FT_c

I/Os = 8 mA for other I/Os

VDD ≥ 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| = 20 mA

VDD ≥ 2.7 V

-1.3

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

VDD-1.3

VOL(3) Output low level voltage for an I/O pin |IIO| = 1 mA for FT_c

I/Os = 4 mA for other I/Os

VDD ≥ 1.62 V

-0.4

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

VDD-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

VDD ≥ 2.7 V

-0.4

|IIO| = 10 mA

VDD ≥ 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 14:

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.

STM32G474CB Datasheet(PDF) 136 Page - STMicroelectronics

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