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參數(shù)資料
| 型號： | KSZ8031RNL TR |
| 廠商： | Micrel Inc |
| 文件頁數(shù)： | 43/43頁 |
| 文件大?。?/td> | 0K |
| 描述： | TXRX PHY 100BASE TX 3.3V 24QFN |
| 標準包裝： | 1 |
| 類型： | PHY 收發(fā)器 |
| 驅(qū)動器/接收器數(shù)： | 1/1 |
| 規(guī)程： | RMII |
| 電源電壓： | 1.8V，2.5V，3.3V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 24-VFQFN 裸露焊盤 |
| 供應商設備封裝： | 24-QFN（4x4） |
| 包裝： | 標準包裝 |
| 配用： | 576-3862-ND - BOARD EVALUATION FOR KSZ8031RNL |
| 其它名稱： | 576-3843-6 |
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Micrel, Inc.
KSZ8021RNL / KSZ8031RNL
August 2010
9
M9999-082710-1.0
Pin Description – KSZ8021RNL / KSZ8031RNL
Pin Number
Pin Name
Type
(1)
Pin Function
1
VDD_1.2
P
1.2V core VDD (power supplied by KSZ8021RNL / KSZ8031RNL)
Decouple with 2.2uF and 0.1uF capacitors-to-ground.
2
VDDA_3.3
P
3.3V analog VDD.
3
RXM
I/O
Physical receive or transmit signal (- differential)
4
RXP
I/O
Physical receive or transmit signal (+ differential)
5
TXM
I/O
Physical transmit or receive signal (- differential)
6
TXP
I/O
Physical transmit or receive signal (+ differential)
7
XO
O
Crystal feedback – for 25 MHz crystal
This pin is a no connect if oscillator or external clock source is used.
8
XI
I
RMII – 25MHz Mode:
25MHz +/-50ppm Crystal / Oscillator / External Clock Input
RMII – 50MHz Mode:
50MHz +/-50ppm Oscillator / External Clock Input
For unmanaged mode (power-up default setting),
KSZ8021RNL takes in the 50MHz clock on this pin.
KSZ8031RNL takes in the 25MHz crystal / clock on this pin.
After power-up, both the KSZ8021RNL and KSZ8031RNL can be programmed via
PHY register 1Fh bit [7] to either the 25MHz mode or 50MHz mode.
See also REF_CLK (pin 16) description.
9
REXT
I
Set physical transmit output current
Connect a 6.49K
Ω resistor-to-ground on this pin.
10
MDIO
I/O
Management Interface (MII) Data I/O
This pin has a weak pull-up, is open drain like, and requires an external 1.0K pull-
up resistor.
11
MDC
I
Management Interface (MII) Clock Input
This clock pin is synchronous to the MDIO data pin.
12
RXD1
Ipd/O
RMII Receive Data Output[1]
(2)
13
RXD0
Ipu/O
RMII Receive Data Output[0]
(2)
14
VDDIO
P
3.3V, 2.5V or 1.8V digital VDD
15
CRS_DV /
PHYAD[1:0]
Ipd/O
RMII Mode:
Carrier Sense/Receive Data Valid Output /
Config Mode:
The pull-up/pull-down value is latched as PHYAD[1:0] at the
de-assertion of reset. See “Strapping Options” section for details.
16
REF_CLK
Ipd/O
RMII – 25MHz Mode:
This pin provides the 50MHz RMII reference clock output to
the MAC.
RMII – 50MHz Mode:
This pin is a no connect.
For unmanaged mode (power-up default setting),
KSZ8021RNL is in RMII – 50MHz mode and does not use this pin.
KSZ8031RNL is in RMII – 25MHz mode and outputs the 50MHz RMII
reference clock on this pin.
After power-up, both KSZ8021RNL and KSZ8031RNL can be programmed via PHY
register 1Fh bit [7] to either 25MHz mode or 50MHz mode.
See also XI (pin 8) description.
17
RXER
Ipd/O
RMII Receive Error Output
18
INTRP
Ipu/Opu
Interrupt Output: Programmable Interrupt Output
This pin has a weak pull-up, is open drain like, and requires an external 1.0K pull-
up resistor.
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| KSZ8041FTL | 功能描述:以太網(wǎng) IC Physical Layer Transceiver 10/100BASE-FX (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 |
| KSZ8041FTL TR | 功能描述:以太網(wǎng) IC Physical Layer Transceiver 10/100BASE-FX (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 |
| KSZ8041FTL-EVAL | 功能描述:以太網(wǎng)開發(fā)工具 KSZ8041FTL Evaluation Board RoHS:否 制造商:Micrel 產(chǎn)品:Evaluation Boards 類型:Ethernet Transceivers 工具用于評估:KSZ8873RLL 接口類型:RMII 工作電源電壓: |
| KSZ8041FTLI | 功能描述:以太網(wǎng) IC Physical Layer Transceiver 10/100BASE-FX (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 |
| KSZ8041FTLI TR | 功能描述:以太網(wǎng) IC Physical Layer Transceiver 10/100BASE-FX (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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