Absolute Maximum Ratings (Note 1)

If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

Supply Voltage (V

−0.3V to 4V

CMOS/TTL Input Voltage

−0.3V to

(V

CML Input/Output Voltage

−0.3V to

(V

Junction Temperature

+125˚C

Storage Temperature

−65˚C to +150˚C

Lead Temperature

Soldering, 4 sec

+260˚C

Thermal Resistance,

θ

JA

33.7˚C/W

Thermal Resistance,

θ

JC-top

20.7˚C/W

Thermal Resistance,

θ

JC-bottom

5.8˚C/W

Thermal Resistance,

Φ

JB

18.2˚C/W

ESD Rating HBM, 1.5 k

Ω, 100 pF

6 kV

ESD Rating Machine Model

250V

Recommended Operating Ratings

Min Typ

Max

Units

Supply Voltage (V

3.135 3.3

3.465

V

Supply Noise Amplitude

10 Hz to 2 GHz

20

mV

PP

Ambient Temperature

0

85

˚C

Case Temperature

100

˚C

Electrical Characteristics

Over recommended operating supply and temperature ranges unless otherwise specified.

Symbol

Parameter

Conditions

Min

Typ

(Note 2)

Max

Units

LVCMOS DC SPECIFICATIONS

V

IH

High Level Input

Voltage

2.0

V

CC

+0.3

V

V

IL

Low Level Input

Voltage

−0.3

0.8

V

I

IH

High Level Input

Current

V

−10

10

µA

I

IL

Low Level Input

Current

V

75

94

124

µA

R

PU

Pull-High Resistance

35

k

Ω

RECEIVER SPECIFICATIONS

V

ID

Differential Input

Voltage Range

AC Coupled Differential Signal

Below 1.25 Gb/s

At 1.25 Gbps–3.125 Gbps

Above 3.125 Gbps

This parameter is not production tested.

100

100

100

1750

1560

1200

mV

P-P

mV

P-P

mV

P-P

V

ICM

Common Mode

Voltage at Receiver

Inputs

Measured at receiver inputs reference to

ground.

1.3

V

R

ITD

Input Differential

Termination

On-chip differential termination between IN+

or IN−.

84

100

116

Ω

R

ITSE

Input Termination

(single-end)

On-chip termination IN+ or IN− to GND for

50

Ω

DRIVER SPECIFICATIONS

VODB

Output Differential

Voltage Swing

without

Pre-Emphasis

R

PRES_1=PRES_0=0

PREL_1=PREL_0=0

Driver pre-emphasis disabled.

Running K28.7 pattern at 4.25 Gbps.

See Figure 5 for test circuit.

1000

1200

1400

mV

P-P

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