KS8721B/BT Micrel, Inc. RMII Receive Timing REF_CLK 20ns TXD[1:0] TXEN TXER t
參數(shù)資料
型號(hào): KSZ8721BI TR
廠商: Micrel Inc
文件頁(yè)數(shù): 7/32頁(yè)
文件大?。?/td> 0K
描述: TXRX PHY 10/100 2.3.3/5V 48-SSOP
標(biāo)準(zhǔn)包裝: 1,000
類型: 收發(fā)器
驅(qū)動(dòng)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(yīng)商設(shè)備封裝: 48-SSOP
包裝: 帶卷 (TR)
配用: 576-1627-ND - BOARD EVALUATION FOR KSZ8721BMC
576-1626-ND - BOARD EVALUATION FOR KSZ8721BL
其它名稱: KSZ8721BITR
KSZ8721BITR-ND
March 2006
15
M9999-030106
KS8721B/BT
Micrel, Inc.
RMII Receive Timing
REF_CLK
20ns
TXD[1:0]
TXEN
TXER
t1
t2
Parameter
Min
Typ
Max
Units
REF_CLK Frequency
50
MHz
RXD[1:0], CRS_DV, RX_ER Output delay from REF_CLK rising edge
2.8
10
ns
Auto Crossover (Auto MDI/MDI-X)
Automatic MDI/MDI-X conguration is intended to eliminate the need for crossover cables between similar devices.
The assignment of pin-outs for a 10/100 BASE-T crossover function cable is shown below.
This feature can eliminate the confusion in real applications so both straight cable and crossover cable can be used.
This feature is controlled by register 1f:13. See “Register 1fh–100BaseTX PHY Controller” section for details.
“Register 1fh–100BaseTX PHY Controller”
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
10/100 BASE-T
Media Dependent Interface
10/100 BASE-T
Media Dependent Interface
Modular Connector (RJ45)
HUB
(Repeater or Switch)
Modular Connector (RJ45)
HUB
(Repeater or Switch)
Receive Pair
Transmit Pair
Receive Pair
Transmit Pair
Figure 1. Straight Through Cable
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
10/100 BASE-T
Media Dependent Interface
10/100 BASE-T
Media Dependent Interface
Modular Connector (RJ45)
HUB
(Repeater or Switch)
Modular Connector (RJ45)
HUB
(Repeater or Switch)
Receive Pair
Transmit Pair
Receive Pair
Transmit Pair
Figure 2. Crossover Cable
RXD[1:0], CRS_DV, RX_ER Output delay from REF_CLK rising edge
2.8
10
ns
RXD[1:0], CRS_DV, RX_ER Output delay from REF_CLK rising edge
2.8
10
ns
RXD[1:0], CRS_DV, RX_ER Output delay from REF_CLK rising edge
2.8
10
ns
RXD[1:0], CRS_DV, RX_ER Output delay from REF_CLK rising edge
2.8
10
ns
Auto Crossover (Auto MDI/MDI-X)
RXD[1:0], CRS_DV, RX_ER Output delay from REF_CLK rising edge
2.8
10
ns
相關(guān)PDF資料
PDF描述
KSZ8721BLI TR TXRX PHY 10/100 2.3.3/5V 48-LQFP
KSZ8721CL A2 TR TXRX PHY 10/100 3.3V 48-LQFP
KSZ8841-16MQL A6 IC MAC CTRLR 8/16BIT 128-PQFP
KSZ8841-32MVLI IC MAC CTRLR 32BIT 128-LQFP
KSZ8841-PMQL IC MAC CTRLR 32BIT 128-PQFP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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
KSZ8721BLA4 功能描述:TXRX 10/100 3.3V 48-SSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動(dòng)器,接收器,收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:1,140 系列:AU 類型:收發(fā)器 驅(qū)動(dòng)器/接收器數(shù):1/1 規(guī)程:CAN 電源電壓:5.3 V ~ 27 V 安裝類型:表面貼裝 封裝/外殼:14-SOIC(0.154",3.90mm 寬) 供應(yīng)商設(shè)備封裝:14-SO 包裝:管件 其它名稱:935267940512AU5790D14AU5790D14-ND