参数资料
型号: KSZ8721SL TR
厂商: Micrel Inc
文件页数: 30/33页
文件大小: 0K
描述: IC TXRX PHY 10/100 3.3V 48SSOP
标准包装: 1
类型: 收发器
驱动器/接收器数: 1/1
规程: IEEE 802
电源电压: 3 V ~ 3.6 V
安装类型: 表面贴装
封装/外壳: 48-BSSOP(0.295",7.50mm 宽)
供应商设备封装: 48-SSOP
包装: 标准包装
产品目录页面: 1080 (CN2011-ZH PDF)
配用: 576-1630-ND - BOARD EVALUATION FOR KSZ8721SL
其它名称: 576-1031-6
KS8721BL/SL
Micrel
M9999-051704
6
May 2004
Pin Description
Pin Number
Pin Name
Type(1)
Pin Function
1
MDIO
I/O
Management Independent Interface (MII) Data I/O. This pin requires an external
10K pull-up resistor.
2
MDC
I
MII Clock Input. This pin is synchronous to the MDIO.
3
RXD3/
Ipd/O
MII Receive Data Output. RXD [3..0], these bits are synchronous with RXCLK.
PHYAD
When RXDV is asserted, RXD [3..0] presents valid data to MAC through the MII.
RXD [3..0] is invalid when RXDV is de-asserted.
During reset, the pull-up/pull-down value is latched as PHYADDR [1]. See
“Strapping Options” section for details.
4
RXD2/
Ipd/O
MII Receive Data Output.
PHYAD2
During reset, the pull-up/pull-down value is latched as PHYADDR[2]. See
“Strapping Options” section for details.
5
RXD1/
Ipd/O
MII Receive Data Output.
PHYAD3
During reset, the pull-up/pull-down value is latched as PHYADDR [3]. See
“Strapping Options” section for details.
6
RXD0/
Ipd/O
MII Receive Data Output.
PHYAD4
During reset, the pull-up/pull-down value is latched as PHYADDR [4]. See
“Strapping Options” section for details.
7
VDDIO
P
Digital IO 2.5 /3.3V tolerant power supply. 3.3V power Input of voltage
regulator. See “Circuit Design Ref. for Power Supply" section for details.
8
GND
Ground.
9
RXDV/
Ipd/O
MII Receive Data Valid Output.
CRSDV/
During reset, the pull-up/pull-down value is latched as PCS_LPBK. See
PCS_LPBK
“Strapping Options” section for details.
10
RXC
O
MII Receive Clock Output. Operating at 25MHz = 100Mbps, 2.5MHz = 10Mbps.
11
RXER/ISO
Ipd/O
MII Receive Error Output.
During reset, the pull-up/pull-down value is latched as ISOLATE during reset. See
“Strapping Options” section for details.
12
GND
Ground.
13
VDDC
P
Digital core 2.5V only power supply. See “Circuit Design Ref. for Power Supply"
section for details.
14
TXER
Ipd
MII Transmit Error Input.
15
TXC/
I/O
MII Transmit Clock Output.
REFCLK
Input for crystal or an external 50MHz clock. When REFCLK pin is used for
REF clock interface, pull up XI to VDDPLL 2.5V via 10k
resistor and leave
XO pin unconnected.
16
TXEN
Ipd
MII Transmit Enable Input.
17
TXD0
Ipd
MII Transmit Data Input.
18
TXD1
Ipd
MII Transmit Data Input.
Notes:
1. P = Power supply.
GND = Ground.
I = Input.
I/O = Bidirectional.
Ipd = Input w/ internal pull-down.
Ipd/O = Input w/ internal pull-down during reset, output pin otherwise.
Ipu = Input w/ internal pull-up.
Ipu/O = Input w/ internal pull-up during reset, output pin otherwise.
O = Output.
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