IMX35 datasheet(21/148 Pages) FREESCALE

21 / 148 page

i.MX35 Applications Processors for Industrial and Consumer Products, Rev. 6

Freescale Semiconductor

Table 13 shows the DC electrical characteristics for GPIO, DDR2, mobile DDR, and SDRAM pins. The

term NVCC refers to the power supply voltage that feeds the I/O of the module in question. For example,

NVCC for the SD/MMC interface refers to NVCC_SDIO.

Table 13. I/O Pin DC Electrical Characteristics

DC Electrical

Characteristics

Symbol

Test Condition

Min.

Typ.

Max.

Unit

GPIO

High-level output voltage

Voh

Ioh = –1 mA

Ioh = specified drive

NVCC – 0.15

0.8

× NVCC

——

Low-level output voltage

Vol

Iol = 1 mA

Iol = specified drive

——

0.15

0.2

× NVCC

High-level output current

for slow mode

(Voh = 0.8

× NVCC)

Ioh

Standard drive

High drive

Max. drive

–2.0

–4.0

–8.0

——

High-level output current

for fast mode

(Voh = 0.8

× NVCC)

Ioh

Standard drive

High drive

Max. drive

–4.0

–6.0

–8.0

——

Low-level output current

for slow mode

(Voh = 0.2

× NVCC)

Iol

Standard drive

High drive

Max. drive

2.0

4.0

8.0

——

Low-level output current

for fast mode

(Voh = 0.2

× NVCC)

Iol

Standard drive

High drive

Max. drive

4.0

6.0

8.0

——

High-level DC Input

Voltage with 1.8 V,

3.3 V NVCC (for digital

cells in input mode)

VIH

—

0.7

× NVCC

—

NVCC

Low-level DC Input

Voltage with 1.8 V,

3.3 V NVCC (for digital

cells in input mode

VIL

—

–0.3 V

—

0.3

× NVCC

Input Hysteresis

VHYS

OVDD = 3.3 V

OVDD = 1.8 V

370

290

—420

320

Schmitt trigger VT+

VT+

—

0.5

× NVCC

—

Schmitt trigger VT–

VT–

—

0.5

× NVCC

Pull-up resistor

(22 K

Ω PU)

Rpu

Vi = 0

—

Pull-up resistor

(47 K

Ω PU)

Rpu

Vi = 0

—

Pull-up resistor

(100 K

Ω PU)

Rpu

Vi = 0

—

100

—

Pull-down resistor

(100 K

Ω PD)

Rpd

Vi = NVCC

—

100

—

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