http://www.datasheet4u.com

900,000+ Datasheet PDF Search and Download

Datasheet4U offers most rated semiconductors datasheets pdf





Realtek
Realtek

RTL8305S Datasheet Preview

RTL8305S Datasheet

5-PORT 10/100 MBPS SINGLE CHIP SWITCH CONTROLLER

No Preview Available !

RTL8305S pdf
RTL8305S
RTL8305S
5-PORT 10/100 MBPS SINGLE CHIP
SWITCH CONTROLLER
1. Features ..................................................................................................................................................................................... 2
2. General Description .................................................................................................................................................................. 2
3. Block Diagram .......................................................................................................................................................................... 3
4. Pin Assignments........................................................................................................................................................................ 4
5. Pin Descriptions ........................................................................................................................................................................ 6
5.1 Media Connection Pins ....................................................................................................................................................... 6
5.2 Mode Pins ........................................................................................................................................................................... 6
5.3 Port4 Related Pins............................................................................................................................................................... 7
5.4 LED Pins............................................................................................................................................................................. 8
5.5 Power Pins .......................................................................................................................................................................... 8
5.6 Miscellaneous Pins.............................................................................................................................................................. 8
5.7 Reserved Pins...................................................................................................................................................................... 8
6. Functional Description.............................................................................................................................................................. 9
6.1 Introduction......................................................................................................................................................................... 9
6.2 Switch Core Functional Overview ...................................................................................................................................... 9
6.2.1 Address Search, Learning and Aging........................................................................................................................... 9
6.2.2 Buffer Management.................................................................................................................................................... 10
6.2.3 Data Reception ........................................................................................................................................................... 10
6.2.4 Data Forwarding......................................................................................................................................................... 10
6.2.5 Flow Control ...............................................................................................................................................................11
6.2.6 Back-off Algorithm .....................................................................................................................................................11
6.2.7 Inter-Frame Gap ..........................................................................................................................................................11
6.2.8 Illegal Frame ...............................................................................................................................................................11
6.2.9 Broadcast Storm Control.............................................................................................................................................11
6.3 Physical Layer Functional Overview .................................................................................................................................11
6.3.1 Auto-negotiation .........................................................................................................................................................11
6.3.2 10Base-T Transmit Function.......................................................................................................................................11
6.3.3 10Base-T Receive Function ........................................................................................................................................11
6.3.4 Link Monitor ...............................................................................................................................................................11
6.3.5 100Base-TX Transmit Function ................................................................................................................................. 12
6.3.6 100Base-TX Receive Function .................................................................................................................................. 12
6.3.7 Power Saving Mode ................................................................................................................................................... 12
6.4 LED................................................................................................................................................................................... 12
6.5 MII Port............................................................................................................................................................................. 13
6.5.1 General Description ................................................................................................................................................... 13
6.5.2 MII/SNI PHY Mode................................................................................................................................................... 16
6.5.3 MII MAC Mode ......................................................................................................................................................... 16
7. Electrical Characteristics......................................................................................................................................................... 18
7.1 Absolute Maximum Ratings ............................................................................................................................................. 18
7.2 Operating Range ............................................................................................................................................................... 18
7.3 DC Characteristics (0°C<Ta<60°C, 3.15V<Vcc<3.45V) ................................................................................................. 18
7.4 AC Characteristics (0°C<Ta<60°C, 3.15V<Vcc<3.45V) ................................................................................................. 19
7.5 Digital Timing Characteristics .......................................................................................................................................... 20
7.6 Thermal Data..................................................................................................................................................................... 20
8. Application Information.......................................................................................................................................................... 21
9. System Application Diagram .................................................................................................................................................. 22
10. Mechanical Dimensions ........................................................................................................................................................ 23
2002/02/19
1
Rev. 1.2



Realtek
Realtek

RTL8305S Datasheet Preview

RTL8305S Datasheet

5-PORT 10/100 MBPS SINGLE CHIP SWITCH CONTROLLER

No Preview Available !

RTL8305S pdf
1. Features
RTL8305S
5-port integrated switch with physical layer and
transceiver for 10Base-T and 100Base-TX with
5-port 10/100M UTP or
4-port 10/100M UTP + 1-port MII/SNI
PHY mode MII/SNI interface for router application
MAC mode MII interface for HomeLAN/100Base-FX
application
1Mbit internal RAM for packet buffer
Internal 1K look-up table entries
25MHz crystal or OSC input
Non-blocking wire-speed reception and transmission
Fully compliant with IEEE 802.3/802.3u
Supports broadcast storm filtering function
Support full duplex 802.3x flow control and half
duplex back-pressure flow control
LED indicators for link/activity, speed, full/half duplex
and collision
LEDs blinking upon reset for LED diagnostics
Unmanaged operation by strapping upon reset
Power saving with cable detection
Low power consumption at 3.3V operating voltage
128-pin PQFP package
2. General Description
The RTL8305S is a highly integrated layer 2 single chip switch controller which incorporates 5 MACs (Media Access
Controller), 5 physical layer transceivers, 1-Mbit SRAM and 1K-entry look-up table into one single chip.
The RTL8305S contains 5 ports, and each one provides support for a 10Base-T (10Mbps) or 100Base-TX (100Mbps) network
connection. The fifth port (port 4) can be configured as a MII/SNI to work with a routing engine, HomePHY or a fiber
transceiver for a 100Base-FX application. And each operation mode can be easily set up by hardware strapping upon restart or
power-on.
The RTL8305S is designed for a stand-alone switch system through hardware strapping upon reset to achieve unmanaged
operation and can be easily integrated with xDSL/Cable modem router. With the least peripheral components and using a
25MHz crystal, the RTL8305S has the best system cost structure. The integrated RTL8305S chip benefits from low power
consumption and ease of use for SOHO 5-port switch or xDSL/Cable router applications.
2002/02/19
2
Rev. 1.2


Part Number RTL8305S
Description 5-PORT 10/100 MBPS SINGLE CHIP SWITCH CONTROLLER
Maker Realtek
Total Page 24 Pages
PDF Download
RTL8305S pdf
Download PDF File
[partsNo] view html
View PDF for Mobile






Related Datasheet

1 RTL8305S 5-PORT 10/100 MBPS SINGLE CHIP SWITCH CONTROLLER ETC
ETC
RTL8305S pdf
2 RTL8305S 5-PORT 10/100 MBPS SINGLE CHIP SWITCH CONTROLLER Realtek
Realtek
RTL8305S pdf
3 RTL8305SC SINGLE-CHIP 5-PORT 10/100MBPS SWITCH CONTROLLER Realtek
Realtek
RTL8305SC pdf






Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

site map

webmaste! click here

contact us

Buy Components