CSTCS12.0MTA datasheet(129/153 Pages) STMICROELECTRONICS

129 / 153 page

ST72334J/N, ST72314J/N, ST72124J

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I/O PORT PIN CHARACTERISTICS (Cont’d)

16.8.2 Output Driving Current

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

Figure 84. Typical VOL at VDD=5V (standard)

Figure 85. Typical VOL at VDD=5V (high-sink)

Figure 86. Typical VOH at VDD=5V

Notes:

1. The IIO current sunk must always respect the absolute maximum rating specified in Section 16.2.2 and the sum of IIO

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

2. The IIO current sourced must always respect the absolute maximum rating specified in Section 16.2.2 and the sum of

IIO (I/O ports and control pins) must not exceed IVDD. True open drain I/O pins does not have VOH.

Symbol

Parameter

Conditions

Min

Max

Unit

VOL

Output low level voltage for a standard I/O pin

when 8 pins are sunk at same time

(see Figure 84 and Figure 87)

IIO=+5mA TA≤85°C

TA≥85°C

1.3

1.5

IIO=+2mA TA≤85°C

TA≥85°C

0.65

0.75

Output low level voltage for a high sink I/O pin

when 4 pins are sunk at same time

(see Figure 85 and Figure 88)

IIO=+20mA,TA≤85°C

TA≥85°C

1.5

1.7

IIO=+8mA TA≤85°C

TA≥85°C

0.75

0.85

VOH

Output high level voltage for an I/O pin

when 4 pins are sourced at same time

(see Figure 86 and Figure 89)

IIO=-5mA, TA≤85°C

TA≥85°C

VDD-1.6

VDD-1.7

IIO=-2mA

TA≤85°C

TA≥85°C

VDD-0.8

VDD-1.0

Iio [mA]

0.5

1.5

2.5

Vol [V] at Vdd=5V

Ta=-40°C

Ta=25°C

Ta=85°C

Ta=125°C

Iio [mA]

0.5

1.5

Vol [V] at Vdd=5V

Ta=-40°C

Ta=25°C

Ta=85°C

Ta=125°C

-8

-6

-4

-2

Iio [mA]

Voh [V] at Vdd=5V

Ta=-40°C

Ta=25°C

Ta=85°C

Ta=125°C

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