STM8L151C4T3 datasheet(85/122 Pages) STMICROELECTRONICS

85 / 122 page

STM8L151xx, STM8L152xx

Electrical parameters

Doc ID 15962 Rev 5

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9.3.6

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 36.

I/O static characteristics

Symbol

Parameter(1)

Conditions(1)

Min

Typ

Max

Unit

VIL

Input low level voltage(2)

Input voltage on true

open-drain pins (PC0

and PC1)

VSS -0.3

0.3 x VDD

Input voltage on FT

pins (PA7 and PE0)

VSS -0.3

0.3 x VDD

Input voltage on any

other pin

VSS -0.3

0.3 x VDD

VIH

Input high level voltage (2)

Input voltage on true

open-drain pins (PC0

and PC1)

with VDD < 2 V

0.70 x VDD

5.2

Input voltage on true

open-drain pins (PC0

and PC1)

with VDD ≥ 2 V

5.5

Input voltage on FT

pins (PA7 and PE0)

with VDD < 2 V

0.70 x VDD

5.2

Input voltage on FT

pins (PA7 and PE0)

with VDD ≥ 2 V

5.5

Input voltage on any

other pin

0.70 x VDD

VDD+0.3

Vhys

Schmitt trigger voltage hysteresis (3)

Standard I/Os

200

True open drain I/Os

200

Ilkg

Input leakage current (4)

VSS≤VIN≤VDD

Standard I/Os

50 (5)

VSS≤VIN≤VDD

True open drain I/Os

200(5)

VSS≤VIN≤VDD

PA0 with high sink LED

driver capability

200(5)

RPU

Weak pull-up equivalent resistor(6)

VIN=VSS

CIO

(7)

I/O pin capacitance

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

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