STM32F427AI datasheet(113/240 Pages) STMICROELECTRONICS

部件名	STM32F427AI

功能描述	32b Arm® Cortex®-M4 MCUFPU, 225DMIPS, up to 2MB Flash/2564KB RAM, USB OTG HS/FS, Ethernet, 17 TIMs, 3 ADCs, 20 com. interfaces, camera & LCD-TFT

PDF	240 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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113 / 240 page

DS9405 Rev 12

113/240

STM32F427xx STM32F429xx

Electrical characteristics

197

Table 34. Switching output I/O current consumption(1)

1. CS is the PCB board capacitance including the pad pin. CS = 7 pF (estimated value).

Symbol

Parameter

Conditions

I/O toggling

frequency

(fsw)

Typ

Unit

IDDIO

I/O switching

Current

VDD = 3.3 V

C= CINT(2)

2. This test is performed by cutting the LQFP176 package pin (pad removal).

2 MHz

0.0

8 MHz

0.2

25 MHz

0.6

50 MHz

1.1

60 MHz

1.3

84 MHz

1.8

90 MHz

1.9

VDD = 3.3 V

CEXT = 0 pF

C = CINT + CEXT

+ CS

2 MHz

0.1

8 MHz

0.4

25 MHz

1.23

50 MHz

2.43

60 MHz

2.93

84 MHz

3.86

90 MHz

4.07

IDDIO

I/O switching

Current

VDD = 3.3 V

CEXT = 10 pF

C = CINT + CEXT

+ CS

2 MHz

0.18

8 MHz

0.67

25 MHz

2.09

50 MHz

3.6

60 MHz

4.5

84 MHz

7.8

90 MHz

9.8

VDD = 3.3 V

CEXT = 22 pF

C = CINT + CEXT

+ CS

2 MHz

0.26

8 MHz

1.01

25 MHz

3.14

50 MHz

6.39

60 MHz

10.68

VDD = 3.3 V

CEXT = 33 pF

C = CINT + Cext

+ CS

2 MHz

0.33

8 MHz

1.29

25 MHz

4.23

50 MHz

11.02

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