STM32WLE4JC datasheet(111/146 Pages) STMICROELECTRONICS

111 / 146 page

DS13105 Rev 9

111/146

STM32WLE5/E4xx

Electrical characteristics

133

Input/output AC characteristics

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 25: General operating conditions.

Table 73. Output voltage characteristics(1)

Symbol

Parameter

Conditions

Min

Max

Unit

VOL(2)

Output low-level voltage for an I/O pin

CMOS port(3)

|IIO| = 8 mA, VDD ≥ 2.7 V

-0.4

VOH(2)

Output high-level voltage for an I/O pin

VDD - 0.4

VOL(2)

Output low-level voltage for an I/O pin

TTL port(3)

|IIO| = 8 mA, VDD ≥ 2.7 V

-0.4

VOH(2)

Output high-level voltage for an I/O pin

2.4

VOL(2)

Output low-level voltage for an I/O pin

|IIO| = 20 mA, VDD ≥ 2.7 V

-1.3

VOH(2)

Output high-level voltage for an I/O pin

VDD - 1.3

VOL(2)

Output low-level voltage for an I/O pin

|IIO| = 4 mA, VDD ≥ 1.8 V

-0.4

VOH(2)

Output high-level voltage for an I/O pin

VDD - 0.45

VOLFM+(2)

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 ≥ 1.8 V

0.4

1. The IIO current sourced or sunk by the device must always respect the absolute maximum rating specified in Table 21:

Voltage characteristics. 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 Σ IIO.

2. Guaranteed by design.

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

Table 74. I/O AC characteristics(1)(2)

OSPEEDx[1:0](3)

Symbol

Parameter

Conditions

Min

Max

Unit

0b00

Fmax

Maximum

frequency

C = 50 pF, 2.7 V ≤ VDD ≤ 3.6 V

MHz

C = 50 pF, 1.8 V ≤ VDD ≤ 2.7 V

C = 10 pF, 2.7 V ≤ VDD ≤ 3.6 V

C = 10 pF, 1.8 V ≤ VDD ≤ 2.7 V

1.5

Tr/Tf

Output rise and

fall time

C = 50 pF, 2.7 V ≤ VDD ≤ 3.6 V

C = 50 pF, 1.8 V ≤ VDD ≤ 2.7 V

C = 10 pF, 2.7 V ≤ VDD ≤ 3.6 V

C = 10 pF, 1.8 V ≤ VDD ≤ 2.7 V

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