QST104 datasheet(34/45 Pages) STMICROELECTRONICS

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Electrical characteristics

QST104

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6.6

KOUTn/OPTn/GPOn pin characteristics

6.6.1

General characteristics

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

6.6.2

Output pin characteristics

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

Table 27.

General characteristics

Symbol

Parameter

Conditions

Min.

Typ.

Max.

Unit

VIL

Input low level voltage (1)

Not tested in production, guaranteed by characterization.

VSS −0.3

0.3x VDD

VIH

Input high level voltage (1)

0.7x VDD

VDD +

0.3

VHys

Schmitt trigger voltage hysteresis(2)

Data based on validation/design results.

400

Input leakage current

VSS ≤ VIN ≤ VDD

±1

μA

CIO

I/O pin capacitance

tf(IO)out Output high to low level fall time

(2)

CL = 50 pF

Between 10%

and 90%

tr(IO)out Output low to high level rise time

(2)

Table 28.

Output pin current

Symbol

Parameter

Conditions

Min.

Max.

Unit

VOL

(1)

The IIO current sunk must always respect the absolute maximum rating specified in Table 22 and the sum

of IIO (I/O ports and control pins) must not exceed IVSS.

Output low level voltage for a high sink I/O

pin when 4 pins are sunk at same time (see

Figure 14)

IIO =

+20mA

1.3

IIO = +8mA

0.75

VOH

(2)

The IIO current sourced must always respect the absolute maximum rating specified in Table 22 and the

sum of IIO (output and RESET pins) must not exceed IVDD..

Output high level voltage for an I/O pin when

4 pins are sourced at same time (see

Figure 19)

IIO = -5mA

VDD−1.5

IIO = -2mA

VDD−0.8

VOL

(1)(3)

Not tested in production, based on characterization results.

Output low level voltage for a high sink I/O

pin when 4 pins are sunk at same time

IIO = +8mA

0.5

VOH

(2)(3) Output high level voltage for an I/O pin when

4 pins are sourced at same time (Figure 17)

IIO = -2mA

VDD−0.8

VOL

(1)(3)

Output low level voltage for a high sink I/O

pin when 4 pins are sunk at same time

IIO = +8mA

0.6

VOH

(2)(3) Output high level voltage for an I/O pin when

4 pins are sourced at same time

IIO = -2mA

VDD−0.9

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