STM32H7 datasheet(188/357 Pages) STMICROELECTRONICS

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Electrical characteristics (rev Y)

STM32H742xI/G STM32H743xI/G

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DS12110 Rev 10

6.3.30

LCD-TFT controller (LTDC) characteristics

Unless otherwise specified, the parameters given in Table 102 for LCD-TFT are derived

from tests performed under the ambient temperature, frcc_c_ck frequency and VDD supply

voltage summarized in Table 24: General operating conditions, with the following

configuration:

•

LCD_CLK polarity: high

•

LCD_DE polarity: low

•

LCD_VSYNC and LCD_HSYNC polarity: high

•

Pixel formats: 24 bits

•

Output speed is set to OSPEEDRy[1:0] = 11

•

Capacitive load C=30 pF

•

Measurement points are done at CMOS levels: 0.5VDD

•

I/O compensation cell enabled

Table 102. LTDC characteristics (1)

Symbol

Parameter

Conditions

Min

Max

Unit

fCLK

LTDC clock output frequency

2.7 V < VDD < 3.6 V,

20 pF

-150

MHz

2.7 V < VDD < 3.6 V

133

1.62 V < VDD < 3.6 V

DCLK

LTDC clock output duty cycle

tw(CLKH),

tw(CLKL)

Clock High time, low time

tw(CLK)/2−0.5 tw(CLK)/2+0.5

tv(DATA)

Data output valid time

0.5

th(DATA)

Data output hold time

tv(HSYNC),

tv(VSYNC),

tv(DE)

HSYNC/VSYNC/DE output valid

time

0.5

th(HSYNC),

th(VSYNC),

th(DE)

HSYNC/VSYNC/DE output hold

time

-0.5

1. Guaranteed by characterization results.

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