Intel 82555 manual Electrical Specifications and Timing Parameters, Absolute Maximum Ratings

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Networking Silicon — 82555

11.0Electrical Specifications and Timing Parameters

11.1Absolute Maximum Ratings

Symbol	Parameter Description	Min	Typ	Max	Units


TC	Case temperature under bias	0		85	C
TS	Storage temperature	-65		140	C
VSUP	Supply voltage	-0.5		7.0	V
a	All output voltages	-0.5		7.0	V
VOA	All output voltages	-0.5		7.0	V
VOTD	Transmit Data Output Voltage	-0.5		8.0	V
VIA	All input voltages	-1.0		6.0	V

a. Stresses above the listed under absolute maximum ratings may cause permanent damage to the device. This is a stress rating only and functional operations of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Ex- posure to absolute maximum rating conditions for extended periods may affect device reliability.

11.2	General Operating Conditions

		Symbol	Parameter Description	Min	Typ	Max	Units


		VCC	Supply voltage	4.75		5.25	V
		TC	Case temperature	0		85	C
11.3	DC Characteristics

11.3.1MII DC Characteristics

Symbol	Parameter Description	Condition	Min	Typ	Max	Units


VIL	Input low voltage (TTL)		0		0.8	V
VIH	Input high voltage (TTL)		2.0			V
VOL	Output low voltage	Iout = 4 mA			0.45	V
VOH	Output high voltage	Iout = -4 mA	2.4			V
IIL	Input low leakage current	0 < Vin < VCC			±15	μA
CINa	Input capacitance				10	pF

a.This parameter is only characterized, not tested. It is valid for digital pins only.

11.3.210BASE-T Voltage/Current DC Characteristics

Symbol	Parameter Description	Condition	Min	Typ	Max	Units


a	Input differential resistance	DC and VRDP =	10			KΩ
RID10	Input differential resistance	(VCC/2) + 0.5 V	10			KΩ
		(VCC/2) + 0.5 V

Datasheet

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Contents 82555 10/100 Mbps LAN Physical Layer Interface Product FeaturesRevision Description Networking SiliconContents Repeater Mode Compliance to Industry Standards IntroductionFunctional Overview Networking Silicon Architectural Overview 100 Mbps ModeMII TX Interface 10 Mbps ModeMedia Independent Interface MII Yes Transmit Error From RICRepeater mode only Pin Numbers and Labels Pin DefinitionsPin Types Clock PinsTwisted Pair Ethernet TPE Pins Media Independent Interface MII PinsMedia Access Control/Repeater Interface Control Pins External Bias Pins LED PinsMiscellaneous Control Pins VSS Power and Ground PinsVCC 100BASE-TX Transmit Blocks 100BASE-TX Adapter Mode OperationSymbol 5B Symbol Code 4B Nibble Code 100BASE-TX Transmit Clock GenerationInvalid 2 100BASE-TX Scrambler and MLT-3 Encoder3 100BASE-TX Transmit Framing NRZ to MLT-3 Encoding DiagramVendor Model/Type 100BASE-TX Receive BlocksTransmit Driver 100BASE-TX Collision Detection Auto-Negotiation 100BASE-TX Link Integrity and Auto-Negotiation SolutionCombination Tx/T4 Auto-Negotiation Solution Link IntegrityAuto 10/100 Mbps Speed Selection Adapter Mode AddressesNetworking Silicon Datasheet 10BASE-T Receive Blocks 10BASE-T Functionality in Adapter Mode10BASE-T Transmit Clock Generation 10BASE-T Transmit Blocks10BASE-T Jabber Control Function 3 10BASE-T Error Detection and Reporting10BASE-T Collision Detection 10BASE-T Link Integrity10BASE-T Full Duplex Networking Silicon Datasheet Connectivity Repeater ModeSpecial Repeater Features Clock Signal Example MDI Frame Structure Management Data InterfaceTransition Bits Name Description DefaultMDI Registers MDI Registers 010BASE-T Register 1 Status Register Bit DefinitionsRegister 2 82555 Identifier Register Bit Definitions MDI Registers 16 MDI Registers 8100BASE-TX Register 17 82555 Special Control Bit Definitions150 Actled Liled Register 22 Receive Symbol Error Counter Bit DefinitionsPriority Technology Bit Setting TechnologyAuto-Negotiation Functionality DescriptionPriority Parallel Detect and Auto-NegotiationAuto-Negotiation and Parallel Detect Networking Silicon Datasheet LED Descriptions Networking Silicon Datasheet Scrambler Bypass Reset and Miscellaneous Test ModesReset LoopbackNumber Code Test Instruction Select Input to Tout Test Instruction CodingGeneral Operating Conditions Electrical Specifications and Timing ParametersDC Characteristics Absolute Maximum RatingsTotal supply current 230 Leakage on analog pins 11.3.3 100BASE-TX Voltage/Current DC CharacteristicsSymbol Parameter Conditions Min Typ Max Units AC CharacteristicsMII Clock Specifications MII Clocks AC Timing MII Timing ParametersRXC tri-stated a Repeater Mode Timing ParametersSquelch Test Timing Parameters Transmit Packet Timing ParametersReceive Packet Timing Parameters Jabber Timing ParametersAuto-Negotiation Fast Link Pulse FLP Timing Parameters 11.4.8 10BASE-T Normal Link Pulse NLP Timing Parameters11.4.11 X1 Clock Specifications Reset Timing ParametersX1 Clock Specifications 11.4.12 100BASE-TX Transmitter AC Specification12.0 82555 Package Information Symbol Description Min Norm Max10.0