KSZ9021RL 查看數據表（PDF） - Micrel

零件编号

产品描述 (功能)

生产厂家

KSZ9021RL

Gigabit Ethernet Transceiver with RGMII Support

Micrel 

Micrel, Inc.

KSZ9021RL/RN

Pin Description – KSZ9021RL

Pin Number

Pin Name

Type(1)

1

TXRXP_A

I/O

2

TXRXM_A

I/O

3

AGNDH

Gnd

4

AVDDL

P

5

AVDDL

P

6

AVDDH

P

7

TXRXP_B

I/O

8

TXRXM_B

I/O

9

AGNDH

Gnd

10

TXRXP_C

I/O

11

TXRXM_C

I/O

12

AVDDL

P

Pin Function

Media Dependent Interface[0], positive signal of differential pair

1000Base-T Mode:

TXRXP_A corresponds to BI_DA+ for MDI configuration and BI_DB+ for

MDI-X configuration, respectively.

10Base-T/100Base-TX Mode:

TXRXP_A is the positive transmit signal (TX+) for MDI configuration and

the positive receive signal (RX+) for MDI-X configuration, respectively.

Media Dependent Interface[0], negative signal of differential pair

1000Base-T Mode:

TXRXM_A corresponds to BI_DA- for MDI configuration and BI_DB- for

MDI-X configuration, respectively.

10Base-T/100Base-TX Mode:

TXRXM_A is the negative transmit signal (TX-) for MDI configuration and

the negative receive signal (RX-) for MDI-X configuration, respectively.

Analog ground

1.2V analog VDD

1.2V analog VDD

3.3V analog VDD

Media Dependent Interface[1], positive signal of differential pair

1000Base-T Mode:

TXRXP_B corresponds to BI_DB+ for MDI configuration and BI_DA+ for

MDI-X configuration, respectively.

10Base-T/100Base-TX Mode:

TXRXP_B is the positive receive signal (RX+) for MDI configuration and

the positive transmit signal (TX+) for MDI-X configuration, respectively.

Media Dependent Interface[1], negative signal of differential pair

1000Base-T Mode:

TXRXM_B corresponds to BI_DB- for MDI configuration and BI_DA- for

MDI-X configuration, respectively.

10Base-T/100Base-TX Mode:

TXRXM_B is the negative receive signal (RX-) for MDI configuration and

the negative transmit signal (TX-) for MDI-X configuration, respectively.

Analog ground

Media Dependent Interface[2], positive signal of differential pair

1000Base-T Mode:

TXRXP_C corresponds to BI_DC+ for MDI configuration and BI_DD+ for

MDI-X configuration, respectively.

10Base-T/100Base-TX Mode:

TXRXP_C is not used.

Media Dependent Interface[2], negative signal of differential pair

1000Base-T Mode:

TXRXM_C corresponds to BI_DC- for MDI configuration and BI_DD- for

MDI-X configuration, respectively.

10Base-T/100Base-TX Mode:

TXRXM_C is not used.

1.2V analog VDD

February 13, 2014

9

Revision 1.2

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