PCIMX515CJM6C datasheet(59/184 Pages) FREESCALE

tên linh kiện	PCIMX515CJM6C

Giải thích chi tiết về linh kiện	i.MX51 Applications Processors for Consumer and Industrial Products

PDF	184 Pages

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Electrical Characteristics

i.MX51 Applications Processors for Consumer and Industrial Products, Rev. 1

Freescale Semiconductor

Preliminary—Subject to Change Without Notice

Table 48. Derating values for DDR2 Differential DQS1,2

Table 49. Derating values for DDR2 Single Ended DQS3,4

1. Test conditions are: Capacitance 15 pF for DDR PADS. Recommended drive strengths is medium for SDCLK and high for

address and controls.

2. SDRAM CLK and DQS related parameters are being measured from the 50% point. that is, high is defined as 50% of signal

value and low is defined as 50% as signal value. DDR SDRAM CLK parameters are measured at the crossing point of SDCLK

and SDCLK (inverted clock).

3. Test conditions are: Capacitance 15 pF for DDR PADS. Recommended drive strengths is medium for SDCLK and high for

address and controls.

4. SDRAM CLK and DQS related parameters are being measured from the 50% point. that is, high is defined as 50% of signal

value and low is defined as 50% as signal value. DDR SDRAM CLK parameters are measured at the crossing point of SDCLK

and SDCLK (inverted clock).

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