GD32F310 datasheet(56/81 Pages) GIGADEVICE

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GD32F310xx Datasheet

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VOL

Low level output voltage

for 8 IO Pins

(each IIO = +20 mA)

VDD = 2.6 V

—

0.36

—

VDD = 3.3 V

—

0.32

—

VDD = 3.6 V

—

0.31

—

VOH

High level output voltage

for 8 IO Pins

(each IIO = +8 mA)

VDD = 2.6 V

—

2.42

—

VDD = 3.3 V

—

3.16

—

VDD = 3.6 V

—

3.47

—

VOH

High level output voltage

for 8 IO Pins

(each IIO = +20 mA)

VDD = 2.6 V

—

2.15

—

VDD = 3.3 V

—

2.92

—

VDD = 3.6 V

—

3.24

—

RPU(2)

Internal pull-

up resistor

All pins

VIN = VSS

kΩ

PA10

—

7.5

13.5

kΩ

RPD(2)

Internal pull-

down resistor

All pins

VIN = VDD

kΩ

PA10

—

7.5

13.5

kΩ

(1)

Based on characterization, not tested in production.

(2)

Guaranteed by design, not tested in production.

(3)

All pins except PC13 / PC14 / PC15. Since PC13 to PC15 are supplied through the Power Switch, which can

only be obtained by a small current(typical source capability:3 mA shared between these IOs, but sink capability

is same as other IO), the speed of GPIOs PC13 to PC15 should not exceed 2 MHz when they are in output

mode(maximum load: 30 pF).

Table 4-26. I/O port AC characteristics(1)(2)

GPIOx_OSPD[1:0] bit value(3)

Parameter

Conditions

Typ

Unit

GPIOx_OSPD0->OSPDy[1:0] = X0

（IO_Speed = 2 MHz）

TRise/TFall

2.6 ≤ VDD ≤ 3.6 V, CL = 10 pF

36.82

2.6 ≤ VDD ≤ 3.6 V, CL = 30 pF

43.91

2.6 ≤ VDD ≤ 3.6 V, CL = 50 pF

49.92

GPIOx_OSPD0->OSPDy[1:0] = 01

（IO_Speed = 10 MHz）

TRise/TFall

2.6 ≤ VDD ≤ 3.6 V, CL = 10 pF

9.27

2.6 ≤ VDD ≤ 3.6 V, CL = 30 pF

10.46

2.6 ≤ VDD ≤ 3.6 V, CL = 50 pF

11.72

GPIOx_OSPD0->OSPDy[1:0] = 11

（IO_Speed = 50 MHz）

TRise/TFall

2.6 ≤ VDD ≤ 3.6 V, CL = 10 pF

1.66

2.6 ≤ VDD ≤ 3.6V, CL = 30 pF

2.43

2.6 ≤ VDD ≤ 3.6 V, CL = 50 pF

3.2

GPIOx_OSPD0->OSPDy[1:0] = 11 and

GPIOx_OSPD1->SPDy = 1

（IO_Speed mode = MAX）

TRise/TFall

2.6 ≤ VDD ≤ 3.6 V, CL = 10 pF

1.36

2.6 ≤ VDD ≤ 3.6V, CL = 30 pF

2.11

2.6 ≤ VDD ≤ 3.6 V, CL = 50 pF

2.8

(1)

Based on characterization, not tested in production.

(2)

Unless otherwise specified, all test results given for TA = 25 ℃.

(3)

The I/O speed is configured using the GPIOx_OSPD0->OSPDy [1:0] bits. Refer to the GD32F3x0 user manual

which is selected to set the GPIO port output speed.

(4)

The maximum frequency is defined in Figure 4-5. I/O port AC characteristics definition, and maximum

frequency cannot exceed

72 MHz.

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