IC QUAD ETHERNET REPEATER 100QFP

SLXT914QC.B3

Manufacturer Part NumberSLXT914QC.B3
DescriptionIC QUAD ETHERNET REPEATER 100QFP
ManufacturerIntel
TypeRepeater
SLXT914QC.B3 datasheet
 

Specifications of SLXT914QC.B3

Rohs StatusRoHS non-compliantTx/rx TypeEthernet
Voltage - Supply4.75 V ~ 5.25 VCurrent - Supply180mA
Mounting TypeSurface MountPackage / Case100-QFP
Delay Time-Capacitance - Input-
Other names831521  
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®
Intel
LXT914 Flexible Quad Ethernet
Repeater
®
The Intel
LXT914 Flexible Quad Ethernet Repeater (called hereafter the LXT914 Repeater) is
an integrated multi-port repeater designed for mixed-media networks. It provides all the active
circuitry required for the repeater function in a single CMOS device. It includes one Attachment
Unit Interface (AUI) port and four 10BASE-T transceivers. The AUI port is mode selectable:
DTE mode allows connection of an external transceiver (10BASE2, 10BASE5, 10BASE-T or
FOIRL) or a drop cable. MAU mode creates a MAU output allowing direct connection to
another DTE interface. The 10BASE-T transceivers are entirely self-contained with internal
filters which simplify the design work required for FCC-compliant EMI performance.
An inter-repeater backplane interface allows 128 or more 10BASE-T ports to be cascaded
together. In addition, a serial port provides information for network management.
The LXT914 Repeater requires only a single 5-volt power supply due to an advanced CMOS
fabrication process.
Product Features
Four integrated 10BASE-T transceivers
and one AUI transceiver on a single chip
Programmable DTE/MAU interface on
AUI port
Seven integrated LED drivers with four
unique operational modes
On-chip transmit and receive filtering
Automatic partitioning of faulty ports,
enabled on an individual port basis
Automatic polarity detection and correction
Programmable squelch level allows
extended range in low-noise environments
Applications
LAN Repeaters
Integrated Repeaters
Datasheet
Synchronous or asynchronous inter-
repeater backplane supports “hot
swapping”
Inter-repeater backplane allows cascaded
repeaters, linking 128 or more 10BASE-T
ports
Serial port for selecting programmable
options
68-pin PLCC (Commercial or Extended
temp range)
100-pin PQFP (Commercial temp range)
Switched Repeater Clusters
Order Number: 248989, Revision: 003
31-Oct-2005

SLXT914QC.B3 Summary of contents

  • Page 1

    ... LXT914 Flexible Quad Ethernet Repeater ® The Intel LXT914 Flexible Quad Ethernet Repeater (called hereafter the LXT914 Repeater integrated multi-port repeater designed for mixed-media networks. It provides all the active circuitry required for the repeater function in a single CMOS device. It includes one Attachment Unit Interface (AUI) port and four 10BASE-T transceivers ...

  • Page 2

    ... Contact your local Intel sales office or your distributor to obtain the latest specifications and before placing your product order. Copies of documents which have an order number and are referenced in this document, or other Intel literature may be obtained by calling 1-800-548-4725 or by visiting Intel's website at http://www.intel.com. ...

  • Page 3

    ... Hub Repeater......................................................................................................... 27 3.3 8-Port Print or File Server ................................................................................................... 28 4.0 Test Specifications ......................................................................................................................35 5.0 Package Specifications...............................................................................................................40 5.1 Top-Label Marking .............................................................................................................. 42 6.0 Product Ordering Information .................................................................................................... 44 Datasheet Intel ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 ® LXT914 Flexible Quad Ethernet Repeater 31-Oct-2005 3 ...

  • Page 4

    ... Inter-Repeater Bus Timing ......................................................................................................... 39 14 LXT914PC/PE Package Specifications ...................................................................................... 40 15 LXT914QC Package Specifications ........................................................................................... 41 16 Sample PLCC Package - Intel 17 Sample Pb-Free (RoHS-Compliant) PLCC Package - Intel 18 Sample PQFP Package - Intel 19 Sample Pb-Free (RoHS-Compliant) PQFP Package - Intel 20 Ordering Information Matrix – Sample........................................................................................ 45 Tables 1 Power, Ground, and Clock Signal Descriptions............................................................................ 9 2 Inter-Repeater Backplane Signal Descriptions ...

  • Page 5

    ... Switching Characteristics............................................................................................................ 37 27 Serial Port Timing—External Mode ............................................................................................37 28 Inter-Repeater Bus Timing.......................................................................................................... 38 29 Product Ordering Information ..................................................................................................... 44 Datasheet Intel ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 ® LXT914 Flexible Quad Ethernet Repeater 31-Oct-2005 5 ...

  • Page 6

    ... Section 5.1 and Figure 16 through Figure 19 Section 6.0, “Product Ordering Information” on page 44 and Figure 20 “Ordering Information Matrix – Sample” on page ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 (RoHS top labels). with Table 29 “Product Ordering 45. Datasheet ...

  • Page 7

    ... AUISEL pin in the 100-pin PQFP (LXT914QC). In the DTE/MAU) 68-pin PLCC (LXT914PC/PE) the AUI Select function is provided through shared usage of the JM LED pin. ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 ® LXT914 Flexible Quad Ethernet Repeater RESET ...

  • Page 8

    ... Intel LXT914 Flexible Quad Ethernet Repeater Figure 2. Pin Assignments 31-Oct-2005 8 Part # LXT914PC/PE XX FPO # XXXXXXXX BSMC Part # FPO # XXXXXXXX BSMC ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 Rev # B5381-01 Rev # B5382-01 Datasheet ...

  • Page 9

    ... System Clock. The required 20 MHz system clock is input at this pin. I Clock must have a 40-60 duty cycle with < rise time. ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 ® LXT914 Flexible Quad Ethernet Repeater ...

  • Page 10

    ... LED Mode 0 & 1 Select. These two pins select one of four possible LED I/O modes of operation. The Functional Description section describes the four I/O modes. ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 Description 1 Description Table 7) is not available. ...

  • Page 11

    ... Serial Clock MHz clock provided by the first LXT914 in the chain to all I/O subsequent repeaters and the EEPROM. In the Local mode all repeaters have their SCLKIO pins tied together. ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 ® LXT914 Flexible Quad Ethernet Repeater ...

  • Page 12

    ... LED and the cathode of a second LED). When connected this way, this pin reports five separate conditions (receive, transmit, receive jabber, receive collision and auto partition. ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 Description ...

  • Page 13

    ... Twisted-Pair Data Inputs (Positive and Negative). These pins are the I positive (TPDIP1-4) and negative (TPDIN1-4) inputs from the network to I the respective twisted-pair ports ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 ® LXT914 Flexible Quad Ethernet Repeater Description 31-Oct-2005 13 ...

  • Page 14

    ... The LXT914 Repeater offers multiple operating modes to suit a broad range of applications ranging from simple 4-port stand-alone hubs or attachments for print and file servers intelligent 128-port enterprise systems with microprocessor/gate arLXT914 Repeater ray management. ...

  • Page 15

    ... The External mode is intended for use with an External Management Device (EMD) and a Media Access Controller (MAC). The EMD (typically a gate array) communicates with a microprocessor (e.g., Intel 8051) and can control up to three LXT914 Repeaters. This simplifies design of a relatively standard 12-port repeater on a single printed circuit board ...

  • Page 16

    ... If FPS is Low (Not First Position), the repeater performs the following functions: 31-Oct-2005 16 Figure 4. The value of CCLimit as implemented in the LXT914 Repeater is Figure 3) to determine the correct operating modes for Management, for Setup Register bit assignments. ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 Datasheet ...

  • Page 17

    ... Datain(M) = II* Collin(ALL) = SQE* Tw2Done WAIT StartTw1 Out(ALL) = Idle Collin(ANY) = SQE + Tw1Done ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 ® LXT914 Flexible Quad Ethernet Repeater Collin(ANY) = SQE[N Port(Collin = SQE)] Collin(N) = SQE + Datain( Collin(ALL) = SQE RECEIVE COLLISION Out (ALLXN) = Jam ...

  • Page 18

    ... CC(X) ≥ CCLimit + (Tw6Done * DIPresent( CIPresent(X) = SQE) CIPresent = SQE Tw5Done * DIPresent( CIPresent(X) = SQE PORT DIPresent( CIPresent (X) = SQE ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 COUNT CLEAR CC( Datain(X) = DIPresent(X) Collin(X) = CIPresent(X) DIPresent( CIPresent(X) = SQE COLLISION COUNT IDLE ...

  • Page 19

    ... DPRC4 DISRX4 DISRX3 DISRX2 DPFRM DSQE DMCV RES RES RES RES RES RES Definition Table 11 ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 ® LXT914 Flexible Quad Ethernet Repeater DISAP3 DISAP2 DISAP1 DISAPA DPRC3 DPRC2 DPRC1 DISLI4 ...

  • Page 20

    ... Reception Each LXT914 Repeater 10BASE-T port receiver acquires data packets from its twisted-pair input (TPDIP/TPDIN). An internal RC filter and an intelligent squelch function discriminate noise from link test pulses and valid data streams. The receive function is activated only by valid data streams (above the squelch level and with proper timing). If the differential signal at the DI circuit inputs falls below 75% of the threshold level (unsquelched) for eight bit times (typical), the port receiver enters the idle state ...

  • Page 21

    ... The port remains in the link fail state until it detects three or more data packets or link integrity pulses. Datasheet Intel ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 ® LXT914 Flexible Quad Ethernet Repeater ...

  • Page 22

    ... Table 13. LEDJM/ AUISEL AUI Mode ) (both pkgs) Low Low DTE Low High MAU High Low MAU High High MAU ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 Available LED Modes default, 0-3 1-3 default, 0-3 1-3 Datasheet ...

  • Page 23

    ... LED Mode 1. LED Mode 0 is not available when LEDJM/AUISEL is pulled High. Datasheet Intel Table 15 through ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 ® LXT914 Flexible Quad Ethernet Repeater Figure 5 Table 18 list the repeater states ...

  • Page 24

    ... Tx Packet N/A Rx Packet Partitioned Out LEDAUI MAU Jabber Lockup N/A Protection (MJLP) N/A N/A N/A N/A Rx Packet N/A N/A ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 0 Note Table 16. Table 17. Table LEDCF LEDJM FIFO Error Manchester Code Violation ...

  • Page 25

    ... N/A LEDAUI MAU Jabber Lockup N/A Protection (MJLP) Rx Packet Partitioned Out N/A N/A N/A N/A ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 ® LXT914 Flexible Quad Ethernet Repeater LEDCF LEDJM N/A N/A N/A Collision N/A N/A ...

  • Page 26

    ... LXT914 470 Ω LED Driver Green 820 Ω 256 256 5. 93.75 ms ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 +5 V 330 Ω Red 70 Ω Green 330 Ω + High Z 0V (Gnd) 256 ms + High Z 0V (Gnd) +5V High (Gnd) 256 ms ...

  • Page 27

    ... LXT914 Repeater. ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 ® LXT914 Flexible Quad Ethernet Repeater 2 ≈ ...

  • Page 28

    ... TG43-1406N – – TG44-S010NX TP497P101 – 5976 5977 – EPE6010 – PE68820 PE65745; PE65994; PE65746; PE65998 PT4116 PT4117 PT4069N1; PT4068N1; ST7011S2; ST7010S2 ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 Figure 8 (Sheet 3) shows the Tx/Rx Pairs Datasheet ...

  • Page 29

    ... Figure 6. 12-Port Application Schematic, 68-Pin PLCC Package (Sheet Datasheet Intel ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 ® LXT914 Flexible Quad Ethernet Repeater 31-Oct-2005 29 ...

  • Page 30

    ... Intel LXT914 Flexible Quad Ethernet Repeater Figure 7. 12-Port Application Schematic, 68-Pin PLCC Package (Sheet 31-Oct-2005 30 ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 Datasheet ...

  • Page 31

    ... Figure 8. 12-Port Application Schematic, 68-Pin PLCC Package (Sheet Datasheet Intel ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 ® LXT914 Flexible Quad Ethernet Repeater 31-Oct-2005 31 ...

  • Page 32

    ... Intel LXT914 Flexible Quad Ethernet Repeater Figure 9. 12-Port Application Schematic, 68-Pin PLCC Package (Sheet 31-Oct-2005 32 ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 Datasheet ...

  • Page 33

    ... Figure 10. 8-Port Application Schematic, LED Mode 1 with AUISEL = MAU (Sheet Datasheet Intel ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 ® LXT914 Flexible Quad Ethernet Repeater 31-Oct-2005 33 ...

  • Page 34

    ... Intel LXT914 Flexible Quad Ethernet Repeater Figure 11. 8-Port Application Schematic, LED Mode 1 with AUISEL = MAU (Sheet 31-Oct-2005 34 ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 Datasheet ...

  • Page 35

    ... OL V – – OLL V 2.4 – – – OHL ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 ® LXT914 Flexible Quad Ethernet Repeater Table 28 apply over the recommended Symbol Min Typ Max Units V -0.3 – – ...

  • Page 36

    ... Z – 5 OUT V 3.3 3.5 OD – – ± 6.4 – – ± 3 – 300 420 DS V 180 250 DSL ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 Max Units Test Conditions LOAD – 4. μs 20 IHRESET ILRESET Table 25. ...

  • Page 37

    ... Time link loss Time between Link Integrity Pulses Interval for valid receive Link Integrity Pulses Symbol Minimum tS1 tS2 tS3 tS4 ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 ® LXT914 Flexible Quad Ethernet Repeater Max Units Test Conditions .6 V ...

  • Page 38

    ... Typical values are at 25° C and are for design aid only; they are not guaranteed and not subject to production testing. 31-Oct-2005 Symbol tIRB1 tIRB2 tIRB3 tIRB3 tIRB4 tIRB5 tIRB6 tIRB7 tIRB8 tIRB9 ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 Minimum Typical Maximum 10 – 150 125 – 225 5 – 30 – 50 – ...

  • Page 39

    ... Figure 13. Inter-Repeater Bus Timing Rx DATA TPs AUI t IRB1 IRDEN t IRENA IRDAT BCLKIO Datasheet Intel t IRB4 t IRB5 IRB2 t IRB3 ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 ® LXT914 Flexible Quad Ethernet Repeater t IRB8 t IRB9 t IRB7 t IRB6 31-Oct-2005 39 ...

  • Page 40

    ... Plastic Leaded Chip Carrier Millimet ers Min Max 4.191 4.572 2.286 3.048 1.575 2.108 1.270 – 0.660 0.813 25.019 25.273 24.130 24.333 0.330 0.533 ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 Datasheet ...

  • Page 41

    ... REF (nominal) 1 0.65 BSC 0.65 0.95 1.95 ref 0° 7° 5° 16° ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 ® LXT914 Flexible Quad Ethernet Repeater D Side pin count = 30 E Side pin count = 20 31-Oct-2005 41 ...

  • Page 42

    ... Figure 16. Sample PLCC Package - Intel Pin 1 Figure 17 shows a sample Pb-Free (RoHS-compliant) PLCC package for the LXT914 Repeater. Figure 17. Sample Pb-Free (RoHS-Compliant) PLCC Package - Intel Pin 1 31-Oct-2005 42 ® LXT914 Repeater LXT914PC B3 ...

  • Page 43

    ... Figure 18. Sample PQFP Package - Intel Figure 19 shows a sample Pb-Free (RoHS-compliant) PQFP package for the LXT914 Repeater. Figure 19. Sample Pb-Free (RoHS-Compliant) PQFP Package - Intel Datasheet Intel ® LXT914 Repeater LXT914QC B3 ...

  • Page 44

    ... Intel LXT914 Flexible Quad Ethernet Repeater 6.0 Product Ordering Information Figure 29 and Figure 20 Table 29. Product Ordering Information Number NLXT914PC.B3 EELXT914PC.B3 NLXT914PE.B3 EELXT914PE.B3 SLXT914QC.B3 EGLXT914QC.B3 31-Oct-2005 44 provide IXF1110 MAC product ordering information. Revision Package Type B3 PLCC B3 PLCC B3 PLCC B3 PLCC B3 PQFP B3 PQFP ® ...

  • Page 45

    ... P = PLCC N = DIP Q = PQFP H = QFP T = TQFP B = BGA C = CBGA E = TBGA K = HSBGA (BGA with heat slug Product Code xxxxx = 3-5 Digit alphanumeric IXA Product Prefix LXT = PHY layer device IXE = Switching engine IXF = Formatting device (MAC/Framer) IXP = Network processor Intel Package Designator B5360-01 31-Oct-2005 45 ...