參數(shù)資料
型號(hào)： KSZ8864RMN
廠商： Micrel Inc
文件頁(yè)數(shù)： 25/111頁(yè)
文件大小： 0K
描述： IC ETHERNET SW 4PORT 64QFN
標(biāo)準(zhǔn)包裝： 348
控制器類型： 以太網(wǎng)開關(guān)控制器
接口： MII，RMII
電源電壓： 1.8V，2.5V，3.3V
工作溫度： 0°C ~ 70°C
安裝類型： 表面貼裝
封裝/外殼： 64-VFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 64-QFN（8x8）
包裝： 托盤
配用： 576-3869-ND - BOARD EVALUATION FOR KSZ8864RMN
其它名稱： 576-3787
KSZ8864RMN-ND
Micrel, Inc.
KSZ8864RMN
April 2012
20
M9999-043012-1.5
10BASE-T Transmit
The output 10BASE-T driver is incorporated into the 100BASE-T driver to allow transmission with the same magnetics.
They are internally wave-shaped and pre-emphasized into outputs with a typical 2.3V amplitude. The harmonic contents
are at least 27dB below the fundamental when driven by an all-ones Manchester-encoded signal.
10BASE-T Receive
On the receive side, input buffer and level detecting squelch circuits are employed. A differential input receiver circuit and
a PLL perform the decoding function. The Manchester-encoded data stream is separated into clock signal and NRZ data.
A squelch circuit rejects signals with levels less than 400mV or with short pulse widths in order to prevent noises at the
RXP or RXM input from falsely triggering the decoder. When the input exceeds the squelch limit, the PLL locks onto the
incoming signal and the KSZ8864RMN decodes a data frame. The receiver clock is maintained active during idle periods
in between data reception.
MDI/MDI-X Auto Crossover
To eliminate the need for crossover cables between similar devices, the KSZ8864RMN supports HP Auto MDI/MDI-X and IEEE
802.3u standard MDI/MDI-X auto crossover. HP Auto MDI/MDI-X is the default.
The auto-sense function detects remote transmit and receive pairs and correctly assigns transmit and receive pairs for the
KSZ8898MQ/TMQ device. This feature is extremely useful when end users are unaware of cable types, and also, saves
on an additional uplink configuration connection. The auto-crossover feature can be disabled through the port control
registers, or MIIM PHY registers. The IEEE 802.3u standard MDI and MDI-X definitions are:
MDI
MDI-X
RJ-45 Pins
Signals
RJ-45 Pins
Signals
1
TD+
1
RD+
2
TD-
2
RD-
3
RD+
3
TD+
6
RD-
6
TD-
Table 1. MDI/MDI-X Pin Definitions
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參數(shù)描述
KSZ8864RMN-EVAL 功能描述:以太網(wǎng)開發(fā)工具 4-Port 10/100 Ethernet Switch w/ 2x PHYs and 2x MAC Interface - Evaluation Board RoHS:否 制造商:Micrel 產(chǎn)品:Evaluation Boards 類型:Ethernet Transceivers 工具用于評(píng)估:KSZ8873RLL 接口類型:RMII 工作電源電壓:
KSZ8864RMNI 功能描述:以太網(wǎng) IC 4-Port 10/100 Ethernet Switch w/ 2x PHYs and 2x MAC Interface - Industrial Temp RoHS:否 制造商:Micrel 產(chǎn)品:Ethernet Switches 收發(fā)器數(shù)量:2 數(shù)據(jù)速率:10 Mb/s, 100 Mb/s 電源電壓-最大:1.25 V, 3.45 V 電源電壓-最小:1.15 V, 3.15 V 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-64 封裝:Tray
KSZ8864RMNU 功能描述:以太網(wǎng) IC 4-Port 10/100BT Switch with MII/RMII (Automotive) RoHS:否 制造商:Micrel 產(chǎn)品:Ethernet Switches 收發(fā)器數(shù)量:2 數(shù)據(jù)速率:10 Mb/s, 100 Mb/s 電源電壓-最大:1.25 V, 3.45 V 電源電壓-最小:1.15 V, 3.15 V 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-64 封裝:Tray
KSZ8864RMNU TR 制造商:Micrel Inc 功能描述:IC ETHERNET SWITCH 4PORT 64MLF
KSZ8873FLL 功能描述:以太網(wǎng) IC 3-Port Fast Ethernet Switch with 2x FX Ports - Lead free RoHS:否 制造商:Micrel 產(chǎn)品:Ethernet Switches 收發(fā)器數(shù)量:2 數(shù)據(jù)速率:10 Mb/s, 100 Mb/s 電源電壓-最大:1.25 V, 3.45 V 電源電壓-最小:1.15 V, 3.15 V 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-64 封裝:Tray
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