ST72324BL datasheet(125/151 Pages) STMICROELECTRONICS

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ST72F324L, ST72324BL

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I/O PORT PIN CHARACTERISTICS (Cont’d)

12.8.2 Output Driving Current

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

Figure 66. Typical VOL at VDD=3V (std. ports)

Figure 67. Typ. VOL at VDD=3V (high-sink ports)

Figure 68. Typical VOH at VDD=3V

Notes:

1. The IIO current sunk must always respect the absolute maximum rating specified in Section 12.2.2 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 12.2.2 and the sum of

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

Symbol

Parameter

Conditions

Min

Typ.

Max.

Unit

VOL

Output low level voltage for a standard I/O pin

when 8 pins are sunk at same time

(see Figure 66 and Figure 69)

IIO=+2mA

0.3

0.7

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

when 4 pins are sunk at same time

(see Figure 67 and Figure 70)

IIO=+10mA

0.3

0.7

VOH

Output high level voltage for an I/O pin

when 4 pins are sourced at same time

(see Figure 68 and Figure 71 )

IIO=-2mA

VDD-0.9

2.6

0.00

0.05

0.10

0.15

0.20

0.25

0.30

0.35

0.40

0.45

lIO (mA)

Ta=90°C

Ta=25°C

Ta=-45°C

0.00

0.10

0.20

0.30

0.40

0.50

lIO (mA)

Ta=90°C

Ta=25°C

Ta=-45°C

2.2

2.3

2.4

2.5

2.6

2.7

2.8

2.9

3.0

3.1

210

lIO(mA)

Ta=90°C

Ta=25°C

Ta=-45°C

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