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March 31, 2008

IDT80KSW0004

Datasheet

9 Recommended Temperature and Operating Voltage1

Table 2 Recommended Temperature and Operating Voltage

NOTES:

1. Power sequencing is not necessary; however, the voltage on any Input or I/O pin cannot exceed its corresponding supply voltage during power

supply ramp up. The device is not sensitive to supply rise and fall times, and thus these are not specified.

2. VDD3, VDDA, and VDDS share a common ground (GNDS). Core supply and ground are VDD and GND respectively.

3. VDD3 may be operated at either 3.3V or 2.5V simply by providing that supply voltage. For those interfaces operating on this supply, this datasheet

provides input and output specifications at each of these voltages.

4. VDDS & VDDA may be tied to a common power plane. VDD (core, digital supply) should have its own supply and plane.

10 AC Test Conditions

Grade

Ambient

Temperature

Ground(2)

Supply Voltage(4)

Commercial

0

°C to 70°C

GND = 0V

GNDS = 0V

VDD = 1.2 +/- 5%

VDDS = 1.2 +/- 5%

VDD3(3) = 3.3 +/- 5%

or 2.5V +/- 100mV

VDDA = 1.2 +/- 5%

Industrial

-40

°C to 85°C

GND = 0V

GNDS = 0V

VDD = 1.2 +/- 5%

VDDS = 1.2 +/- 5%

VDD3(3) = 3.3 +/- 5%

or 2.5V +/- 100mV

VDDA = 1.2 +/- 5%

Input Pulse Levels

GND to 3.0V /

GND to 2.4V

Input Rise / Fall

Times

2ns

Input Timing Refer-

ence Levels

1.5V / 1.25V

Output Reference

Levels

1.5V / 1.25V

Output Load

Figures 4

Table 3 AC Test Conditions (VDD3=3.3V / 2.5V): JTAG, I2C, RST