KS8721B/BT Micrel, Inc. Revision History Revision Date Summary of Changes 1.0 2/29/02 Document Origination (Pr" />
參數(shù)資料
型號： KSZ8721BI
廠商： Micrel Inc
文件頁數(shù)： 23/32頁
文件大?。?/td> 0K
描述： IC TXRX PHY 10/100 2.5V 48SSOP
標(biāo)準(zhǔn)包裝： 30
類型： 收發(fā)器
驅(qū)動(dòng)器/接收器數(shù)： 1/1
規(guī)程： MII，RMII
電源電壓： 2.375 V ~ 2.625 V
安裝類型： 表面貼裝
封裝/外殼： 48-BSSOP（0.295"，7.50mm 寬）
供應(yīng)商設(shè)備封裝： 48-SSOP
包裝： 管件
產(chǎn)品目錄頁面： 1080 (CN2011-ZH PDF)
配用： 576-1627-ND - BOARD EVALUATION FOR KSZ8721BMC
576-1626-ND - BOARD EVALUATION FOR KSZ8721BL
其它名稱： 576-1027
March 2006
3
M9999-030106
KS8721B/BT
Micrel, Inc.
Revision History
Revision Date
Summary of Changes
1.0
2/29/02
Document Origination (Preliminary)
2.0
4/01/02
Update timing Spec from page 33 to page 37
Change Revision ID from 1000 to 1001
Add new control register bit, Control Register 0 Bit 0, to control transmit enable/disable
Add 8h register map on the table
Editorial Change on FXSD/FXEN pin34
Change on duplex pin38 0=half and 1=full duplex
Change on the 10BT MII transmit timing 1.0us to 2.5us and Tlat 2.5us to 4BT
Add the TEST description mode on pin26
2.1
1/31/03
Add part number ordering information & remove pinout diagram
Edited pin description on the IO cloumn
Change the company logo, disclaimer, & contact info
Editorial changes on Stapping option description
Change on Register0h bit0, 1=disable and 0=enable
Add remote fault register4h bit13.
Add normal operating condition table & Thermal data for SSOP48 table
Add Reset Timing table & Transformer Lists
Add 48 TQFP pinout diagram & RMII AC Charateristics
Add ordering info for 48 Pin TQFP package, KS8721B/BTI industrial temperature, KSY8721B/KSY8721BT
environmentally friendly part number
2.2
8/29/03
Change part number from KS8721B to KS8721B/BT.
Change ordering info. from “KSY” to “KSZ” for lead free.
Change pin name from RMII_LPBK to RMII_BTB
Convert to new format.
2.3
1/24/04
MDIO pull-up resistor value changed to 4.7kΩ.
Added note on strapping option pins.
Updated bit 1b.0 - 1b.7 to self-clearing.
Updated Electrical Characteristic.
Updated bit 1f4:2 to resetted.
Added additional magnetics to qualied transformer.
Added reset reference circuit.
2.3
3/16/05
Added RMII timing specication.
1.0
2/29/02
Document Origination (Preliminary)
2.0
4/01/02
Update timing Spec from page 33 to page 37
Change Revision ID from 1000 to 1001
Add new control register bit, Control Register 0 Bit 0, to control transmit enable/disable
Add 8h register map on the table
Editorial Change on FXSD/FXEN pin34
Change on duplex pin38 0=half and 1=full duplex
Change on the 10BT MII transmit timing 1.0us to 2.5us and Tlat 2.5us to 4BT
Add the TEST description mode on pin26
2.1
1/31/03
Add part number ordering information & remove pinout diagram
Edited pin description on the IO cloumn
Change the company logo, disclaimer, & contact info
Editorial changes on Stapping option description
Change on Register0h bit0, 1=disable and 0=enable
Add remote fault register4h bit13.
Add normal operating condition table & Thermal data for SSOP48 table
Add Reset Timing table & Transformer Lists
Add 48 TQFP pinout diagram & RMII AC Charateristics
Add ordering info for 48 Pin TQFP package, KS8721B/BTI industrial temperature, KSY8721B/KSY8721BT
environmentally friendly part number
2.2
8/29/03
Change part number from KS8721B to KS8721B/BT.
Change ordering info. from “KSY” to “KSZ” for lead free.
Change pin name from RMII_LPBK to RMII_BTB
Convert to new format.
2.3
1/24/04
MDIO pull-up resistor value changed to 4.7kΩ.
Added note on strapping option pins.
Updated bit 1b.0 - 1b.7 to self-clearing.
Updated Electrical Characteristic.
Updated bit 1f4:2 to resetted.
Added additional magnetics to qualied transformer.
Added reset reference circuit.
2.3
3/16/05
Added RMII timing specication.
Revision Date
Summary of Changes
1.0
2/29/02
Document Origination (Preliminary)
2.0
4/01/02
Update timing Spec from page 33 to page 37
Change Revision ID from 1000 to 1001
Add new control register bit, Control Register 0 Bit 0, to control transmit enable/disable
Add 8h register map on the table
Editorial Change on FXSD/FXEN pin34
Change on duplex pin38 0=half and 1=full duplex
Change on the 10BT MII transmit timing 1.0us to 2.5us and Tlat 2.5us to 4BT
Add the TEST description mode on pin26
2.1
1/31/03
Add part number ordering information & remove pinout diagram
Edited pin description on the IO cloumn
Change the company logo, disclaimer, & contact info
Editorial changes on Stapping option description
Change on Register0h bit0, 1=disable and 0=enable
Add remote fault register4h bit13.
Add normal operating condition table & Thermal data for SSOP48 table
Add Reset Timing table & Transformer Lists
Add 48 TQFP pinout diagram & RMII AC Charateristics
Add ordering info for 48 Pin TQFP package, KS8721B/BTI industrial temperature, KSY8721B/KSY8721BT
environmentally friendly part number
2.2
8/29/03
Change part number from KS8721B to KS8721B/BT.
Change ordering info. from “KSY” to “KSZ” for lead free.
Change pin name from RMII_LPBK to RMII_BTB
Convert to new format.
2.3
1/24/04
MDIO pull-up resistor value changed to 4.7kΩ.
Added note on strapping option pins.
Updated bit 1b.0 - 1b.7 to self-clearing.
Updated Electrical Characteristic.
Updated bit 1f4:2 to resetted.
Added additional magnetics to qualied transformer.
Added reset reference circuit.
2.3
3/16/05
Added RMII timing specication.
Revision Date
Summary of Changes
1.0
2/29/02
Document Origination (Preliminary)
2.0
4/01/02
Update timing Spec from page 33 to page 37
Change Revision ID from 1000 to 1001
Add new control register bit, Control Register 0 Bit 0, to control transmit enable/disable
Add 8h register map on the table
Editorial Change on FXSD/FXEN pin34
Change on duplex pin38 0=half and 1=full duplex
Change on the 10BT MII transmit timing 1.0us to 2.5us and Tlat 2.5us to 4BT
Add the TEST description mode on pin26
2.1
1/31/03
Add part number ordering information & remove pinout diagram
Edited pin description on the IO cloumn
Change the company logo, disclaimer, & contact info
Editorial changes on Stapping option description
Change on Register0h bit0, 1=disable and 0=enable
Add remote fault register4h bit13.
Add normal operating condition table & Thermal data for SSOP48 table
Add Reset Timing table & Transformer Lists
Add 48 TQFP pinout diagram & RMII AC Charateristics
Add ordering info for 48 Pin TQFP package, KS8721B/BTI industrial temperature, KSY8721B/KSY8721BT
environmentally friendly part number
2.2
8/29/03
Change part number from KS8721B to KS8721B/BT.
Change ordering info. from “KSY” to “KSZ” for lead free.
Change pin name from RMII_LPBK to RMII_BTB
Convert to new format.
2.3
1/24/04
MDIO pull-up resistor value changed to 4.7kΩ.
Added note on strapping option pins.
Updated bit 1b.0 - 1b.7 to self-clearing.
Updated Electrical Characteristic.
Updated bit 1f4:2 to resetted.
Added additional magnetics to qualied transformer.
Added reset reference circuit.
2.3
3/16/05
Added RMII timing specication.
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