STM8AL313X datasheet(82/124 Pages) STMICROELECTRONICS

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Electrical parameters

STM8AL313x/4x/6x STM8AL3L4x/6x

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DocID18474 Rev 7

9.3.7

I/O port pin characteristics

General characteristics

Subject to general operating conditions for VDD and TA unless otherwise specified. All

unused pins must be kept at a fixed voltage: using the output mode of the I/O for example or

an external pull-up or pull-down resistor.

Table 41. I/O static characteristics

Symbol

Parameter

Conditions(1)

Min

Typ

Max

Unit

VIL

Input low level voltage

Input voltage on all pins

VSS-0.3

0.3 x VDD

VIH

Input high level voltage

Input voltage on true open-

drain pins (PC0 and PC1)

with VDD < 2 V

0.70 x VDD

5.2(2)

Input voltage on true open-

drain pins (PC0 and PC1)

with VDD ≥ 2 V

5.5(2)

Input voltage on five-volt

tolerant (FT) pins (PA7 and

PE0)

with VDD < 2 V

0.70 x VDD

5.2(2)

Input voltage on five-volt

tolerant (FT) pins (PA7 and

PE0)

with VDD ≥ 2 V

5.5(2)

Input voltage on 3.6 V tolerant

(TT) pins

3.6(2)

Input voltage on any other pin

0.70 x VDD

VDD+0.3(2)

Vhys

Schmitt trigger voltage

hysteresis (3)

I/Os

200

True open drain I/Os

200

Ilkg

Input leakage current (4)

VSS≤VIN≤VDD

High sink I/Os

VSS≤VIN≤VDD

True open drain I/Os

200

VSS≤VIN≤VDD

PA0 with high sink LED driver

capability

200

RPU

Weak pull-up equivalent

resistor(5)

VIN=VSS

30(6)

60(6)

CIO

I/O pin capacitance

1. VDD = 3.0 V, TA = -40 to 125 °C unless otherwise specified.

2. If VIH maximum cannot be respected, the injection current must be limited externally to IINJ(PIN) maximum.

3. Hysteresis voltage between Schmitt trigger switching levels. Based on characterization results, not tested.

4. The max. value may be exceeded if negative current is injected on adjacent pins.

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