參數(shù)資料
型號(hào)： KSZ9021RNI
廠商： Micrel Inc
文件頁數(shù)： 3/58頁
文件大?。?/td> 0K
描述： IC TXRX 10/100/1000 SGL 48QFN
標(biāo)準(zhǔn)包裝： 260
類型： 收發(fā)器
驅(qū)動(dòng)器/接收器數(shù)： 8/8
規(guī)程： 千兆位以太網(wǎng)
電源電壓： 3.135 V ~ 3.465 V
安裝類型： 表面貼裝
封裝/外殼： 48-VFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 48-QFN（7x7）
包裝： 托盤
配用： 576-3874-ND - BOARD EVALUATION FOR KSZ9021RN
其它名稱： 576-3978
KSZ9021RNI-ND
Micrel, Inc.
KSZ9021RL/RN
February 13, 2014
11
Revision 1.2
Pin Number
Pin Name
Type
(1)
Pin Function
21
LED1 /
PHYAD0
I/O
LED Output:
Programmable LED1 Output /
Config Mode:
The pull-up/pull-down value is latched as PHYAD[0] during
power-up/reset. See “Strapping Options” section for details.
The LED1 pin is programmed by the LED_MODE strapping option (pin 55), and is
defined as follows.
Single LED Mode
Activity
Pin State
LED Definition
No Activity
H
OFF
Activity (RX, TX)
Toggle
Blinking
Tri-color Dual LED Mode
Link / Activity
Pin State
LED Definition
LED2
LED1
LED2
LED1
Link off
H
OFF
1000 Link / No Activity
L
H
ON
OFF
1000 Link / Activity (RX, TX)
Toggle
H
Blinking
OFF
100 Link / No Activity
H
L
OFF
ON
100 Link / Activity (RX, TX)
H
Toggle
OFF
Blinking
10 Link / No Activity
L
ON
10 Link / Activity (RX, TX)
Toggle
Blinking
For Tri-color Dual LED Mode, LED1 works in conjunction with LED2 (pin 19) to
indicate 10 Mbps Link and Activity.
22
DVDDL
P
1.2V digital VDD
23
VSS
Gnd
Digital ground
24
TXD0
I
RGMII Mode:
RGMII TD0 (Transmit Data 0) Input
25
TXD1
I
RGMII Mode:
RGMII TD1 (Transmit Data 1) Input
26
TXD2
I
RGMII Mode:
RGMII TD2 (Transmit Data 2) Input
27
TXD3
I
RGMII Mode:
RGMII TD3 (Transmit Data 3) Input
28
VSS
Gnd
Digital ground
29
DVDDL
P
1.2V digital VDD
30
DVDDH
P
3.3V/2.5V digital VDD
31
TX_ER
I
RGMII Mode:
This pin is not used and should be left as a no connect.
32
GTX_CLK
I
RGMII Mode:
RGMII TXC (Transmit Reference Clock) Input
33
TX_EN
I
RGMII Mode:
RGMII TX_CTL (Transmit Control) Input
34
VSS
Gnd
Digital ground
35
DVDDL
P
1.2V digital VDD
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