CY29948AXC datasheet(3/10 Pages) CYPRESS

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CY29948

Document Number: 38-07288 Rev. *E

Page 3 of 10

Maximum Ratings[2]

Maximum Input Voltage Relative to VSS............. VSS – 0.3 V

Maximum Input Voltage Relative to VDD............. VDD + 0.3 V

Storage Temperature ............................... –65 °C to + 150 °C

Operating Temperature............................... –40 °C to +85 °C

Maximum ESD protection............................................... 2 kV

Maximum Power Supply................................................ 5.5 V

Maximum Input Current ............................................. ±20 mA

This device contains circuitry to protect the inputs against

damage due to high static voltages or electric field; however,

precautions should be taken to avoid application of any voltage

higher than the maximum rated voltages to this circuit. For proper

operation, Vin and Vout should be constrained to the range:

VSS < (Vin or Vout) < VDD

Unused inputs must always be tied to an appropriate logic

voltage level (either VSS or VDD).

DC Parameters

VDD = VDDC = 3.3 V ± 10% or 2.5 V ± 5%, over the specified temperature range.

Parameter

Description

Conditions

Min

Typ

Max

Unit

VIL

Input Low Voltage

VDD = 3.3 V, PECL_CLK single ended

1.49

–

1.825

VDD = 2.5 V, PECL_CLK single ended

1.10

–

1.45

All other inputs

VSS

–0.8

VIH

Input High Voltage

VDD = 3.3 V, PECL_CLK single ended

2.135

–

2.42

VDD = 2.5 V, PECL_CLK single ended

1.75

–

2.0

All other inputs

2.0

–

VDD

IIL

Input Low Current[3]

–

–100

µA

IIH

Input High Current[3]

––

100

VPP

Peak-to-Peak Input Voltage

PECL_CLK

300

–

1000

VCMR

Common Mode Range[4]

PECL_CLK

VDD = 3.3 V

VDD – 2.0

–

VDD – 0.6

VDD = 2.5 V

VDD – 1.2

–

VDD – 0.6

VOL

Output Low Voltage[5]

IOL = 20 mA

–

0.4

VOH

Output High Voltage[5]

IOH = –20 mA, VDD = 3.3 V

2.5

–

IOH = –20 mA, VDD = 2.5 V

1.8

–

IDDQ

Quiescent Supply Current

–

IDD

Dynamic Supply Current

VDD = 3.3 V, Outputs @ 100 MHz,

CL =30pF

–180

–

VDD = 3.3 V, Outputs @ 160 MHz,

CL =30pF

–270

–

VDD = 2.5 V, Outputs @ 100 MHz,

CL =30pF

–125

–

VDD = 2.5 V, Outputs @ 160 MHz,

CL =30pF

–190

–

Zout

Output Impedance

VDD = 3.3 V



VDD = 2.5 V

Cin

Input Capacitance

–

Notes

2. Multiple Supplies: The voltage on any input or I/O pin cannot exceed the power pin during power-up. Power supply sequencing is not required.

3. Inputs have pull-up/pull-down resistors that effect input current.

4. The VCMR is the difference from the most positive side of the differential input signal. Normal operation is obtained when the “High” input is within the VCMR range

and the input lies within the VPP specification.

5. Driving series or parallel terminated 50

 (or 50  to VDD/2) transmission lines.

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