82443LX Datasheet, PDF (109/144 Pages) Intel Corporation – INTEL 440LX AGPSET: 82443LX PCI A.G.P. CONTROLLER (PAC)

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INTEL 82443LX (PAC)
5.0. ELECTRICAL CHARACTERISTICS
This chapter contains the electrical and thermal specifications for the 82443LX PCI AGP Compliant Controller
(PAC). The specifications include: absolute maximum ratings, thermal characterhistics, DC characteristics,
AC characteristics, and timing waveforms.
The Pentium® II processor bus introduces a variation of the low voltage GTL (Gunning Transceiver Logic) for
signaling. For reliable operation, unused input pins must be tied to an appropriate signal level. Unused GTL+
inputs should be connected to VTT. Unused active low 3.3V tolerant inputs should be connected to 3.3V.
Unused active high inputs should be connected to ground (VSS).
5.1. Absolute Maximum Ratings
Case Temperature under Bias ..................................................................................... 0oC to +100oC
Storage Temperature ................................................................................................... -55oC to +150oC
Voltage on GTL+ & 3.3V tolerant Pins with Respect to Ground²................................... -0.3 to VCC + 0.3 V
Voltage on PCI and 5.0V tolerant Pins with Respect to Ground ................................... -0.3 to VCC_PCI¹ + 0.3 V
3.3V Supply Voltage with Respect to Vss (VCC).......................................................... -0.3 to + 4.3 V
5.0V Supply Voltage with Respect to Vss (5V_BIAS)................................................... -0.5 to + 6.5 V
¹ VCC_PCI and VCC_AGP are the voltage levels on the PCI bus and AGP interface respectively. To ensure long
term reliability of the device, worst case AC operating conditions would include supporting an overvoltage
of +11.0V and undervoltage of -5.5V
² Minimum D.C. input is -0.3V. During transitions the inputs may undershoot to -0.8V or overshoot to 0.8V
over max VIH for a maximum period of 20 ns.
WARNING:
Stressing the device beyond the "Absolute Maximum Ratings" may cause permanent
damage. These are stress ratings only. Operating beyond the "Operating Conditions" is
not recommended and extended exposure beyond "Operating Conditions" may affect
reliability.
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