參數(shù)資料
型號： KSZ8721BI
廠商： Micrel Inc
文件頁數(shù)： 1/32頁
文件大?。?/td> 0K
描述： IC TXRX PHY 10/100 2.5V 48SSOP
標準包裝： 30
類型： 收發(fā)器
驅(qū)動器/接收器數(shù)： 1/1
規(guī)程： MII，RMII
電源電壓： 2.375 V ~ 2.625 V
安裝類型： 表面貼裝
封裝/外殼： 48-BSSOP（0.295"，7.50mm 寬）
供應商設備封裝： 48-SSOP
包裝： 管件
產(chǎn)品目錄頁面： 1080 (CN2011-ZH PDF)
配用： 576-1627-ND - BOARD EVALUATION FOR KSZ8721BMC
576-1626-ND - BOARD EVALUATION FOR KSZ8721BL
其它名稱： 576-1027
March 2006
1
M9999-030106
KS8721B/BT
2.5V 10/100BasTX/FX MII Physical Layer Transceiver
Rev. 2.3
General Description
Operating at 2.5 volts to meet low voltage and low power
requirements,theKS8721B/BTisa10BaseT/100BaseTX/FX
Physical Layer Transceiver, which provides an MII to transmit
and receive data. It contains the 10BaseT Physical Medium
Attachment (PMA), Physical Medium Dependent (PMD), and
Physical Coding Sub-layer (PCS) functions. Moreover, the
KS8721B/BT has on-chip 10BaseT output ltering, which
eliminates the need for external lters and allows a single
set of line magnetics to be used to meet requirements for
both 100BaseTX and 10BaseT.
The KS8721B/BT can automatically congure itself for 100
or 10 Mbps and full or half duplex operation, using on-chip
Auto-Negotiation algorithm. It is an ideal choice of physical
layer transceiver for 100BaseTX/10BaseT applications.
Data sheets and support documentation can be found on
Micrel’s web site at www.micrel.com.
Features
Single chip 100BaseTX/100BaseFX/10BaseT physical
layer solution
2.5V CMOS design, power consumption <200mW (ex-
cluding output driver current )
Fully compliant to IEEE 802.3u standard
Supports Media Independent Interface (MII) and
Reduced MII (RMII)
Supports 10BaseT, 100BaseTX and 100BaseFX with
Far_End_Fault Detection
Supports power down mode and power saving mode
Congurable through MII serial management ports or via
external control pins
Supports auto-negotiation and manual selection for
10/100Mbps speed and full/half-duplex mode
On-chip built-in analog front end ltering for both 100Ba-
seTX and 10BaseT
Micrel, Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 944-0800 fax + 1 (408) 474-1000 http://www.micrel.com
Functional Diagram
10/100
Pulse
Shaper
NRZ/NRZI
MLT3 Encoder
Parallel/Serial
Manchester Encoder
4B/5B Encoder
Scrambler
Parallel/Serial
Transmitter
TX+
TX-
Adaptive EQ
Base Line
Wander Correction
MLT3 Decoder
NRZI/NRZ
Clock
Recovery
4B/5B Decoder
Descrambler
Serial/Parallel
Auto
Negotiation
10BaseT
Receiver
Manchester Decoder
Serial/Parallel
PLL
LED
Driver
MII/RMII
Registers
and
Controller
Interface
RX-
RX+
XI
XO
SPD
FDX
COL
LINK
Power
Down or
Saving
PWRDWN
RXC
TXD3
TXD0
TXD1
TXD2
RXD3
TXEN
TXC
TXER
MDC
MDIO
COL
CRS
RXER
RXD0
RXD1
RXD2
RXDV
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相關代理商/技術參數(shù)
參數(shù)描述
KSZ8721BI TR 功能描述:以太網(wǎng) IC 10/100 BASE-TX/FX Physical Layer Transceiver, Single 3.3V Supply, 48-SSOP, I-Temp, 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
KSZ8721BL 功能描述:以太網(wǎng) IC 10/100 Base-TX/FX Physical Layer Transceiver, Single 3.3V Supply, 48-LQFP (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
KSZ8721BL A4 制造商:Micrel Inc 功能描述:PHY 1-CH 10Mbps/100Mbps 48-Pin LQFP
KSZ8721BL A4 TR 制造商:Micrel Inc 功能描述:PHY 1-CH 10Mbps/100Mbps 48-Pin LQFP T/R
KSZ8721BL TR 功能描述:以太網(wǎng) IC 10/100 Base-TX/FX Physical Layer Transceiver, Single 3.3V Supply, 48-LQFP (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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