IMX7DCEC datasheet(44/161 Pages) NXP

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Electrical characteristics

i.MX 7Dual Family of Applications Processors Datasheet, Rev. 7, 09/2023

NXP Semiconductors

• General Purpose I/O (GPIO)

• Double Data Rate I/O (DDR) for LPDDR3 and DDR3 modes

• Differential I/O (CCM_CLK1)

4.5.1

General purpose I/O (GPIO) DC parameters

Table 29 shows DC parameters for GPIO pads. The parameters in Table 29 are guaranteed per the

operating ranges in Table 9, unless otherwise noted.

4.5.2

DDR I/O DC electrical characteristics

The DDR I/O pads support DDR3/DDR3L, LPDDR2, and LPDDR3 operational modes. The DDR

Memory Controller (DDRMC) is designed to be compatible with JEDEC-compliant SDRAMs. The

DDRC supports the following memory types:

• DDR3 SDRAM compliant to JESD79-3E DDR3 JEDEC standard release July, 2010

• LPDDR2 SDRAM compliant to JESD209-2B LPDDR2 JEDEC standard release June, 2009

• LPDDR3 SDRAM compliant to JESD209-3B LPDDR3 JEDEC standard release August, 2013

Table 29. GPIO DC Parameters

Parameter

Symbol

Test Conditions

Min

Max

Units

High-level output voltage

VOH

IOH= –1.8mA, –3.6mA, –7.2mA, –10.8mA 0.8 OVDD

OVDD

Low-level output voltage

VOL

IOL=1.8mA, 3.6mA, 7.2mA, 10.8mA

0.2 OVDD

High-level input voltage

VIH

—

0.7 OVDD OVDD + 0.3

Low-level input voltage

VIL

—

–0.3

0.3 OVDD

Input hysteresis

VHYS

—

0.15

—

Pull-up resistor (5_k PU)

—

VDD = 1.8 ± 0.15 V

5.94

5.98

K

Pull-up resistor (5_k PU)

—

VDD = 3.3 ± 0.3 V

4.8

5.3

K

Pull-up resistor (47_k PU)

—

VDD = 1.8 ± 0.15 V

46.1

50.6

K

Pull-up resistor (47_k PU)

—

VDD = 3.3 ± 0.3 V

45.8

49.8

K

Pull-up resistor (100_k PU)

—

VDD = 1.8 ± 0.15 V

97.5

105.9

K

Pull-up resistor (100_k PU)

—

VDD = 3.3 ± 0.3 V

101

105

K

Pull-down resistor (100_k PU)

—

VDD = 1.8 ± 0.15 V

101

108.6

K

Pull-down resistor (100_k PD)

—

VDD = 3.3 ± 0.3 V

101

108

K

Input current (no PU/PD)

IOZ

—

–5



Sink/source current in Push-Pull

mode

—

Driving currents (@100MHz,

VOL/H = 0.5OVDD, SS, 125°C)

OVDD = 2.7 V

–32.9

32.9

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