T2080NXE8MQLB View Datasheet(PDF) - NXP Semiconductors.

Part Name

Description

Manufacturer

T2080NXE8MQLB

T2080 QorIQ integrated multicore communications processor

NXP Semiconductors. 

Electrical characteristics

Table 15. ECn_GTX_CLK125 DC electrical characteristics1

Parameter

Symbol

Min

Typical

Max

Unit

1. At recommended operating conditions with LVDD = 2.5 V.

2. The min VIL and max VIH values are based on the respective min and max LVIN values found in Table 3.

3. The symbol LVIN, in this case, represents the LVIN symbol referenced in Recommended operating conditions.

Notes

This table provides the Ethernet gigabit reference clocks AC timing specifications.

Table 16. ECn_GTX_CLK125 AC timing specifications1

Parameter/Condition

Symbol

Min

Typical

Max

Unit Notes

ECn_GTX_CLK125 frequency

ECn_GTX_CLK125 cycle time

ECn_GTX_CLK125 rise and fall time

LVDD = 2.5 V

ECn_GTX_CLK125 duty cycle

1000Base-T for RGMII

tG125

tG125

tG125R/tG125F

125 - 100 ppm 125

—

8

—

—

tG125H/tG125

47

—

125 + 100 ppm MHz

—

—

ns

—

0.75

ns

2

53

%

3

ECn_GTX_CLK125 jitter

—

—

—

± 150

ps

3

Notes:

1. At recommended operating conditions with LVDD = 2.5 V ± 125 mV.

2. Rise and fall times for ECn_GTX_CLK125 are measured from 0.5 and 2.0 V for LVDD = 2.5 V.

3. ECn_GTX_CLK125 is used to generate the GTX clock for the Ethernet transmitter with 2% degradation. The

ECn_GTX_CLK125 duty cycle can be loosened from 47%/53% as long as the PHY device can tolerate the duty cycle

generated by the GTX_CLK. See RGMII AC timing specifications for duty cycle for 10Base-T and 100Base-T reference clock.

3.6.5 DDR clock timing

This section provides the DDR clock DC and AC timing specifications. DDR3L

maximum supported data rate is 1866 MT/s.

3.6.5.1 DDR clock DC timing specifications

This table provides the DDR clock (DDRCLK) DC specifications.

Table 17. DDRCLK DC electrical characteristics3

Parameter

Input high voltage

Input low voltage

Input capacitance

Symbol

VIH

VIL

CIN

Min

1.25

—

—

Typical

—

—

—

Max

—

0.6

12

Table continues on the next page...

Unit

V

V

pF

Notes

1

1

—

QorIQ T2080 Data Sheet, Rev. 3, 03/2018

60

NXP Semiconductors

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