IMX53IEC datasheet(22/173 Pages) FREESCALE

No. de pieza	IMX53IEC

Descripción Electrónicos	i.MX53 Applications Processors for Industrial Products

PDF	173 Pages

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Fabricante Electrónico	FREESCALE [Freescale Semiconductor, Inc]

Página de inicio	http://www.freescale.com

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i.MX53 Applications Processors for Industrial Products, Rev. 6

Freescale Semiconductor

Electrical Characteristics

NVCC_SD1

Use maximal I/O Eq3, N=6

NVCC_SD2

Use maximal I/O Eq3, N=6

1 The results are based on calculation assuming the following conditions:

—Four 16-bit DDR devices

—Heavy use profile

—On-Die Termination (ODT) of 50

Ω for DDR2 and 40 Ω for DDR3

—Dual rank termination schema

—Command and Address line termination to NVCC_EMI_DRAM/2 voltage

These numbers include both i.MX53 DDR controller I/O current consumption and DDR memory I/O power

consumption for data and DQS lines.

2 50 μA current is the worst case for fast silicon at 125 °C. The typical current is 3 μA for typical silicon at 25 °C.

3 General Equation for estimated, maximal power consumption of an I/O power supply:

Imax = N x C x V x (0.5 x F)

Where:

N - Number of I/O pins supplies by the power line

C - Equivalent external capacitive load

V - I/O voltage

(0.5 x F) - Data change rate. Up to 0.5 of the clock rate (F).

Table 8. Maximal Supply Currents (continued)

Power Line

Conditions

Max Current

Unit

IMX53IEC Datasheet(PDF) 22 Page - Freescale Semiconductor, Inc