STM32WB35CCU6ATR datasheet(136/193 Pages) STMICROELECTRONICS

136 / 193 page

Electrical characteristics

STM32WB55xx STM32WB35xx

136/193

DS11929 Rev 10

Input/output AC characteristics

The definition and values of input/output AC characteristics are given in Table 74.

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

the ambient temperature and supply voltage conditions summarized in Table 24: General

operating conditions.

Table 73. Output voltage characteristics(1)

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

in Table 20: 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 Σ IIO.

Symbol

Parameter

Conditions

Min

Max Unit

VOL(2)

2. Guaranteed by design.

Output low level voltage for an I/O pin

CMOS port(3)



|IIO| = 8 mA

VDD ≥ 2.7 V

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

-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 ≥ 1.62 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 ≥ 1.62 V

-0.4

|IIO| = 2 mA

1.62 V ≥ VDD ≥ 1.08 V

-0.4

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

Speed Symbol

Parameter

Conditions

Min

Max

Unit

Fmax

Maximum frequency

C=50 pF, 2.7 V ≤ VDD ≤ 3.6 V

MHz

C=50 pF, 1.62 V ≤ VDD ≤ 2.7 V

C=10 pF, 2.7 V ≤ VDD ≤ 3.6 V

C=10 pF, 1.62 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, 1.62 V ≤ VDD ≤ 2.7 V

C=10 pF, 2.7 V ≤ VDD ≤ 3.6 V

C=10 pF, 1.62 V ≤ VDD ≤ ≤2.7 V

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