STM32WL55JC datasheet(66/147 Pages) STMICROELECTRONICS

66 / 147 page

Electrical characteristics

STM32WL55/54xx

66/147

DS13293 Rev 2

2. VIN maximum must always be respected. Refer to the next table for the maximum allowed injected current values.

3. This formula must be applied only on the power supplies related to the I/O structure described in Table 19:

STM32WL55/54xx pin definition.

4. To sustain a voltage higher than 4 V, the internal pull-up/pull-down resistors must be disabled.

5. Include VREF- pin.

Table 22. Current characteristics

Symbol

Ratings

Max

Unit

∑IVDD

Total current into sum of all VDD power lines (source)(1)

130

∑IVSS

Total current out of sum of all VSS ground lines (sink)(1)

130

IVDD(PIN)

Maximum current into each VDD power pin (source)(1)

130

IVSS(PIN)

Maximum current out of each VSS ground pin (sink)(1)

100

IIO(PIN)

Output current sunk by any I/O and control pin, except FT_f

Output current sunk by any FT_f pin

Output current sourced by any I/O and control pin

∑IIO(PIN)

Total output current sunk by sum of all I/Os and control pins(2)

100

Total output current sourced by sum of all I/Os and control pins(2)

100

IINJ(PIN)(3)

Injected current on FT_xx, TT and RST pins, except PB0

–5 / +0(4)

Injected current on PB0

-5/0

∑|IINJ(PIN)|

Total injected current (sum of all I/Os and control pins)(5)

1. All main power (VDD, VDDRF, VDDA, VBAT) and ground (VSS) pins must always be connected to the external power

supplies, in the permitted range.

2. This current consumption must be correctly distributed over all I/Os and control pins.

3. Positive injection (when VIN > VDD) is not possible on these I/Os and does not occur for input voltages lower than the

specified maximum value.

4. A negative injection is induced by VIN < VSS. IINJ(PIN) must never be exceeded. Refer also to the previous table for the

maximum allowed input voltage values.

5. When several inputs are submitted to a current injection, the maximum ∑|IINJ(PIN)| is the absolute sum of the negative

injected currents (instantaneous values).

Table 23. Thermal characteristics

Symbol

Ratings

Value

Unit

TSTG

Storage temperature range

-65 to +150

°C

Maximum junction temperature

125

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