1.2V analog V" />
參數(shù)資料
型號： KSZ9021RNI
廠商： Micrel Inc
文件頁數(shù)： 2/58頁
文件大小： 0K
描述： IC TXRX 10/100/1000 SGL 48QFN
標準包裝： 260
類型： 收發(fā)器
驅動器/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
供應商設備封裝： 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
10
Revision 1.2
Pin Number
Pin Name
Type
(1)
Pin Function
13
AVDDL
P
1.2V analog VDD
14
TXRXP_D
I/O
Media Dependent Interface[3], positive signal of differential pair
1000Base-T Mode:
TXRXP_D corresponds to BI_DD+ for MDI configuration and BI_DC+ for
MDI-X configuration, respectively.
10Base-T/100Base-TX Mode:
TXRXP_D is not used.
15
TXRXM_D
I/O
Media Dependent Interface[3], negative signal of differential pair
1000Base-T Mode:
TXRXM_D corresponds to BI_DD- for MDI configuration and BI_DC- for
MDI-X configuration, respectively.
10Base-T/100Base-TX Mode:
TXRXM_D is not used.
16
AVDDH
P
3.3V analog VDD
17
VSS
Gnd
Digital ground
18
VSS
Gnd
Digital ground
19
LED2 /
PHYAD1
I/O
LED Output:
Programmable LED2 Output /
Config Mode:
The pull-up/pull-down value is latched as PHYAD[1] during
power-up/reset. See “Strapping Options” section for details.
The LED2 pin is programmed by the LED_MODE strapping option (pin 55), and is
defined as follows.
Single LED Mode
Link
Pin State
LED Definition
Link off
H
OFF
Link on (any speed)
L
ON
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, LED2 works in conjunction with LED1 (pin 21) to
indicate 10 Mbps Link and Activity.
20
DVDDH
P
3.3V/2.5V digital VDD
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