AM79C873 datasheet(31/44 Pages) AMD

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Am79C873

PRELIMINARY

ABSOLUTE MAXIMUM RATINGS

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

Ambient Temperature

with Power Applied. . . . . . . . . . . . . . . . –0°C to +70°C

Supply Voltage

with Respect to Ground . . . . . . . . . -4.75 V to +5.25 V

DC Input Voltage (VIN) . . . . . . . . –0.5 V to VCC +0.5 V

DC Output or I/O Pin Voltage (VOUT) . . . . .–0.5 V to

VCC +0.5 V

Stresses above those listed under Absolute Maximum

Ratings may cause permanent device failure. Functionality

at or above these limits is not implied. Exposure to Ab-

solute Maximum Ratings for extended periods may affect

device reliability.

OPERATING RANGES

Commercial (C) Devices

Ambient Temperature (TA)

Operating in Free Air. . . . . . . . . . . . . . . .0°C to +70°C

Supply Voltage (VCC)

with Respect to Ground . . . . . . . . +4.75 V to +5.25 V

Operating ranges deﬁne those limits between which the

functionality of the device is guaranteed.

Power Consumption

100BASE-TX Full Duplex . . . . . . . . . . . . . . . . 185 mA

(Measured using Unscrambled IDLE transmission looped

back to RXIN, includes external termination circuitry)

10BASE-T Full Duplex . . . . . . . . . . . . . . . . . . 222 mA

(Measured using Maximum packet size, minimum I.P.G.

transmission looped back to RXIN, includes external termina-

tion circuitry)

Auto-Negotiation . . . . . . . . . . . . . . . . . . . . . . 165 mA

(Measured during Parallel Detect until link established)

Idle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 mA

(Measured with no link established)

Power Down Mode . . . . . . . . . . . . . . . . . . . . . 40 mA

(Measured while MII Register 0 Bit 11 set true)

DC ELECTRICAL CHARACTERISTICS

(VCC = 5 VDC, ±5%, TA = 0 to 70, unless speciﬁed otherwise)

Symbol

Parameter

Conditions

Min

Typical

Max

Unit

I100TX

Supply Current 100BASE 100BASE-TX

active

Vcc = 5.0 V

180

185

I10TTP

Supply Current 10BASE-TX active

(Random data, Random IPG and

Random size)

Vcc = 5.0 V

120

I10TWC

Supply Current 10BASE-TX active

(Max. Packet size, Min. IPG and Worst

case data pattern)

Vcc = 5.0 V

220

IPDM

Supply Current Power Down Mode

Vcc = 5.0 V

IAN

Supply Current during Auto-Negotiation

Vcc = 5.0 V

165

IRST

Supply Current during Reset.

Vcc = 5.0 V

115

TTL Inputs

(TXD0-TXD3, TX_CLK, MDIO, TX_EN, TX_DV, TX_ER, TESTMODE, PHYAD0-4, OPMODE0-4, RPTR, BPALIGN, BP4B5B,

BPSCR, 10BTSER, RESET)

VIL

Input Low Voltage

IIL = -400 uA

0.8

VIH

Input High Voltage

IIH = 100 uA

2.0

IIL

Input Low Current

VIN = 0.4 V

-200

IIH

Input High Current

VIN = 2.7 V

100

AM79C873 Datasheet(PDF) 31 Page - Advanced Micro Devices

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