IMX28AEC datasheet(22/72 Pages) FREESCALE

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i.MX28 Applications Processors Data Sheet for Automotive Products, Rev. 1

Freescale Semiconductor

Table 27 shows the digital pin DC characteristics for GPIO in 1.8 V mode.

10-K pull-up resistance2

Rpu10k

47-K pull-up resistance2

Rpu47k

1 The conditions of the current measurements for all different drives are as follows:

IOL: at 0.4 V

IOH: at VDDIO * 0.8 V

Maximum corner for 3.3 V mode: 3.6 V, -40

°C, fast process.

Minimum corner for 3.3 V mode: 3.0 V, 105

°C, slow process

8 gpio pins (LCD_D0-D7) and 2 gpio_clk pins (LCD_DOTCLK and LCD_WR_RWN) simultaneously loaded.

2 See the i.MX28 reference manual for detailed pull-up configuration of each I/O.

Table 27. Digital Pin DC Characteristics for GPIO in 1.8 V Mode

Symbol

Min

Max

Units

Input voltage high (DC)

VIH

0.7

× VDDIO18

VDDIO18

Input voltage low (DC)

VIL

—

0.3

× VDDIO18

Output voltage high (DC)

VOH

0.8 * VDDIO18

—

Output voltage low (DC)

VOL

—

0.2

× VDDIO18

Output source current1

(DC)

gpio

1 The condition of the current measurements for all different drives are as follows:

Maximum corner for 1.8 V mode: 1.9 V, -40

°C, Fast process.

Minimum corner for 1.8 V mode: 1.7 V, 105

°C, Slow process.

1 gpio pin (GPMI_D0) and 1 gpio_clk pin (GPMI_WRN) simultaneously loaded.

IOH – low

-2.2

—

IOH – medium

-3.5

—

IOH – high

-4.0

—

Output sink current1

(DC)

gpio

IOL – low

3.3

—

IOL – medium

7.0

—

IOL – high

7.5

—

Output source current1

(DC)

gpio_clk

IOH – low

-4.2

—

IOH – high

-6.0

—

Output sink current1

(DC)

gpio_clk

IOL – low

6.8

—

IOL – high

11.5

—

10-K pull-up resistance2

2 See the i.MX28 reference manual for detailed pull-up configuration of each I/O.

Rpu10k

47-K pull-up resistance2

Rpu47k

Table 26. Digital Pin DC Characteristics for GPIO in 3.3-V Mode (continued)

Parameter

Symbol

Min

Max

Units

IMX28AEC Datasheet(PDF) 22 Page - Freescale Semiconductor, Inc

IMX28AEC Datasheet(HTML) 22 Page - Freescale Semiconductor, Inc

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