参数资料
型号: KS8721BA4 TR
厂商: Micrel Inc
文件页数: 1/35页
文件大小: 0K
描述: TXRX 10/100 3.3V 48-SSOP
标准包装: 1,000
类型: 收发器
驱动器/接收器数: 1/1
规程: MII,RMII
电源电压: 2.375 V ~ 2.625 V
安装类型: 表面贴装
封装/外壳: 48-BSSOP(0.295",7.50mm 宽)
供应商设备封装: 48-SSOP
包装: 带卷 (TR)
配用: 576-1006-ND - BOARD EVAL EXPERIMENT KS8721B
其它名称: KS8721BA4TR
KS8721BA4TR-ND
KS8721BL/SL
3.3V Single Power Supply 10/100BASE-TX/FX
MII Physical Layer Transceiver
Rev. 1.3
Micrel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1 (408) 944-0800 fax + 1 (408) 474-1000 http://www.micrel.com
June 2009
M9999-062509-1.3
General Description
Operating with a 2.5V core to meet low-voltage and low-
power requirements, the KS8721BL and KS8721SL are
10BASE-T/100BASE-TX/FX Physical Layer Transceivers
that use MII and RMII interfaces to transmit and receive
data.
They
contain
10BASE-T
Physical
Medium
Attachment (PMA), Physical Medium Dependent (PMD),
and Physical Coding Sub-layer (PCS) functions. The
KS8721BL/SL also have on-chip 10BASE-T output
ltering. This eliminates the need for external lters and
allows a single set of line magnetics to be used to meet
requirements for both 100BASE-TX and 10BASE-T.
The KS8721BL/SL automatically configure themselves
for 100 or 10Mbps and full- or half-duplex operation,
using an on-chip auto-negotiation algorithm. They are the
ideal physical layer transceiver for 100BASE-TX/
10BASE-T applications.
Features
Single chip 100BASE-TX/100BASE-FX/10BASE-T
physical layer solution
2.5V CMOS design; 2.5/3.3V tolerance on I/O
3.3V single power supply with built-in voltage
regulator; Power consumption <340mW (including
output driver current)
Fully compliant to IEEE 802.3u standard
Supports MII and Reduced MII (RMII)
Supports 10BASE-T, 100BASE-TX, and 100BASE-FX
with Far_End_Fault Detection
Supports power-down and power-saving modes
Congurable through MII serial management ports or
via external control pins
Functional Diagram
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