SAA7780 データシートの表示（PDF） - Philips Electronics

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SAA7780

ThunderBird Q3D™ PCI Audio Accelerator

Philips Electronics 

Philips Semiconductors

Product Specification

ThunderBird Q3D PCI Audio

Accelerator

SAA7780

Absolute Maximum Ratings

Absolute maximum ratings are those values which damage to the device may occur. Functional operation under these

conditions or at any other condition beyond those indicated in the operational sections of this specification is not

implied.1

Power Supply Operating Requirements

SAA7780 Minimum VDD Operating Requirement

IMPORTANT: The SAA7780 requires VDD >= 3.0V. If VDD < 3.0V, excessive damage from hot electrons might occur.

SAA7780 Power Supply Sequencing Requirement

0 <= (NWELL - VDD) < 4.0V

IMPORTANT: The 5.0V (NWELL) supply must power up ahead of the 3.3V (VDD, not VDDIC) supply. Likewise, the

3.0V supply must power down before the 5.0V supply. More specifically, the voltage level of the 5.0V supply must

always exceed, or at least equal, the voltage level of the 3.3V supply during power up or down, but not by more than

4.0V. This is due the biasing of the P+ source junctions and that some pad gate oxides see the (NWELL-VDD) voltage

level. If this level exceeds 4.0V or becomes less than 0V, damage will occur.

Device Maximum Ratings

The following table notes both the operating and non-operating conditions for both the 3.0V and 5.0V tolerant pads.

Remember that the ranges imply an operating range unless otherwise noted. The 5.0V tolerant pads signal at 3.0V

levels and are CMOS and TTL compatible.

Device Maximum Ratings

Condition

Ambient Operating Temperature

Ambient Storage Temperature

Non-Operating Core and Ring Supply Voltage

Operating Core Supply Voltage

Operating Ring Supply Voltage

5V Tolerant Supply (5.0V nominal supply)

NWELL to VDD Differential

3V Tolerant I/O DC Input Voltage

3V Tolerant I/O DC Output Voltage

5V Tolerant I/O DC Input Voltage

5V Tolerant I/O DC Output Voltage

DC Input Current (at VI < 0V or VI > VDD)

DC Output Current (at VO < 0V or VO > VDD)

1. Adapted from the JEDEC standards JESD8-A and JESD36.

Symbol

TA

TS

VDD, VDDIC

VDDIC

VDD

NWELL

NWELL-VDD

VI3

VO3

VI5

VO5

II

IO

Maximum Ratings

0°C to +70°C

-65°C to +150°C

-0.5V to 4.6V *

-0.5V to 3.63V *

3.0V to 3.63V *

-0.5V to 5.5V *

0 ≤ (NWELL-VDD) < 4.0V

-0.5V to VDD+0.5V (≤4.6V max)+

-0.5V to VDD+0.5V (≤4.6V max)+

-0.5V to 5.5V (≤ 6.0V max)+

-0.5V to VDD+0.5V (≤4.6V max)+

± 20mA

± 20mA

1999 Sep 30

67

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