参数资料
型号: KS8721SL-EVAL
厂商: Micrel Inc
文件页数: 32/33页
文件大小: 0K
描述: BOARD EVAL EXPERIMENT KS8721SL
标准包装: 1
主要目的: 接口,以太网控制器(PHY 和 MAC)
嵌入式:
已用 IC / 零件: KSZ8721SL
主要属性: 1 个端口,100BASE-TX/100BASE-FX/10BASE-T
次要属性: MII,RMII,自动 MDI,MDIX,>130 米线缆驱动器,LDO,符合 IEEE802.3u 要求
已供物品:
相关产品: KS8721SLA4 TR-ND - TXRX 10/100 3.3V 48-SSOP
KS8721SLA4-ND - TXRX 10/100 3.3V 48-SSOP
KS8721SL-ND - TXRX 10/100 3.3V 48-SSOP
KS8721SLI-ND - IC TXRX PHY 10/100 3.3V 48SSOP
KS8721SL TR-ND - IC TXRX PHY 10/100 3.3V 48SSOP
其它名称: 576-1010
KS8721BL/SL
Micrel
M9999-051704
8
May 2004
Pin Number
Pin Name
Type(1)
Pin Function
31
VDDRX
P
Analog 2.5V power supply. See “Circuit Design Ref. for Power Supply” section for
details.
32
RX-
I
Receive Input. Differential receive input pins for 100FX, 100BASE-TX, or 10BASE-T.
33
RX+
I
Receive Input: Differential receive input pin for 100FX, 100BASE-TX, or 10BASE-T.
34
FXSD/FXEN
Ipd/O
Fiber Mode Enable / Signal Detect in Fiber Mode. If FXEN = 0, FX mode is
disable. The default is “0”. See “100BT FX Mode” section for more details.
35
GND
Ground.
36
GND
Ground.
37
REXT
I
External resistor (6.49kW ) connects to REXT and GND.
38
VDDRCV
P
Analog 2.5V power supply. 2.5V power output of voltage regulator. See “Circuit
Design Ref. for Power Supply” section for details.
39
GND
Ground.
40
TX-
O
Transmit Outputs: Differential transmit output for 100FX, 100BASE-TX, or
10BASE-T.
41
TX+
O
Transmit Outputs: Differential transmit output for 100FX, 100BASE-TX, or 10BASE-T.
42
VDDTX
P
Transmitter 2.5V power supply. See “Circuit Design Ref. for Power Supply” section
for details.
43
GND
Ground.
44
GND
Ground.
45
XO
O
XTAL feedback: Used with XI for Xtal application.
46
XI
I
Crystal Oscillator Input: Input for a crystal or an external 25MHz clock.
If an oscillator is used, XI connects to a 3.3V tolerant oscillator, and X2 is a no-
connect.
47
VDDPLL
P
Analog PLL 2.5V power supply. See “Circuit Design Ref. for Power Supply”
section for details.
48
RST#
Ipu
Chip Reset. Active low, minimum of 50
s pulse is required.
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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