MCIMX503CVM8B datasheet(69/134 Pages) FREESCALE

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Electrical Characteristics

i.MX50 Applications Processors for Consumer Products, Rev. 2

Freescale Semiconductor

4.8.2

DRAM Command and Address Output Timing—LPDDR2

The following diagrams and tables specify the timings related to the address and command pins, which

interface LPDDR2 memory devices.

Table 45. EMI Command/Address AC Timing

Description

Symbol

Min

Max

Unit

DDR1

CK cycle time

tCK

3.75

—

DDR2

CK high level width

tCH

0.48 tCK

0.52 tCK

DDR3

CK low level width

tCL

0.48 tCK

0.52 tCK

DDR4

Control output setup time

tIS

0.5 tCK

- 0.3

—ns

DDR5

Control output hold time

tIH

0.5 tCK

- 0.3

—ns

DDR6

CK >= 200 MHz

Address output setup time

tIS

0.5 tCK

- 1.3

—ns

DDR7

CK >= 200 MHz

Address output hold time

tIH

0.5 tCK

- 1.3

—ns

DDR6

CK < 200 MHz

Address output setup time

tIS

—

DDR7

CK < 200 MHz

Address output hold time

tIH

—

Figure 29. DRAM Command/Address Output Timing—LPDDR2

DRAM_SDCLK

DRAM_SDCLK_B

DRAM_CS0

DRAM_A[9:0]

DDR1

DDR2

DDR3

DDR4

DDR5

rise

fall

DDR6

DDR7

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