STM32F779IGH7 datasheet(165/255 Pages) STMICROELECTRONICS

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STM32F777xx STM32F778Ax STM32F779xx

Electrical characteristics

224

Input/output AC characteristics

The definition and values of input/output AC characteristics are given in Figure 39 and

Table 67, respectively.

Table 66. Output voltage characteristics

Symbol

Parameter

Conditions

Min

Max

Unit

VOL(1)

1. The IIO current sunk by the device must always respect the absolute maximum rating specified in Table 15.

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

Output low level voltage for an I/O pin

CMOS port(2)

IIO = +8 mA

2.7 V ≤ VDD ≤ 3.6 V

2. TTL and CMOS outputs are compatible with JEDEC standards JESD36 and JESD52.

0.4

VOH(3)

3. The IIO current sourced by the device must always respect the absolute maximum rating specified in

Table 15 and the sum of IIO (I/O ports and control pins) must not exceed IVDD.

Output high level voltage for an I/O pin

except PC14

CMOS port(2)

IIO = -8 mA

2.7 V ≤ VDD ≤ 3.6 V

VDD 0.4

VOH(3) Output high level voltage for PC14

CMOS port(2)

IIO = -2 mA

2.7 V ≤ VDD ≤ 3.6 V

VDD 0.4

VOL (1) Output low level voltage for an I/O pin

TTL port(2)

IIO =+8mA

2.7 V ≤ VDD ≤ 3.6 V

0.4

VOH (3)

Output high level voltage for an I/O pin

except PC14

TTL port(2)

IIO =-8mA

2.7 V ≤ VDD ≤ 3.6 V

2.4

VOL(1) Output low level voltage for an I/O pin

IIO = +20 mA

2.7 V ≤ VDD ≤ 3.6 V

1.3(4)

4. Based on characterization data.

VOH(3)

Output high level voltage for an I/O pin

except PC14

IIO = -20 mA

2.7 V ≤ VDD ≤ 3.6 V

VDD 1.3(4)

VOL(1) Output low level voltage for an I/O pin

IIO = +6 mA

1.8 V ≤ VDD ≤ 3.6 V

0.4(4)

VOH(3)

Output high level voltage for an I/O pin

except PC14

IIO = -6 mA

1.8 V ≤ VDD ≤ 3.6 V

VDD 0.4(4)

VOL(1) Output low level voltage for an I/O pin

IIO = +4 mA

1.7 V ≤ VDD ≤ 3.6V

0.4(5)

5. Guaranteed by design.

VOH(3)

Output high level voltage for an I/O pin

except PC14

IIO = -4 mA

1.7 V ≤ VDD ≤ 3.6V

VDD 0.4(5)

VOH(3) Output high level voltage for PC14

IIO = -1 mA

1.7 V ≤ VDD ≤ 3.6V

VDD 0.4(5)

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