LAN9221-ABZJ SMSC, LAN9221-ABZJ Datasheet - Page 44

• Manufacturer Part Number: LAN9221-ABZJ
• Description: IC ETHERNET CTRLR 16BIT 56-QFN
• Manufacturer: SMSC
• Type: Single Chip MAC and PHY Controllerr

Specifications of LAN9221-ABZJ

• Controller Type: Ethernet Controller, MAC/PHY
• Interface: Serial EEPROM
• Voltage - Supply: 3.3V
• Current - Supply: 85mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 56-QFN
• Product: Ethernet Controllers
• Number Of Transceivers: 1
• Standard Supported: IEEE 802.3 or IEEE 802.3u
• Data Rate: 10 Mbps or 100 Mbps
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 0 V
• Supply Current (max): 99.2 mA, 137.3 mA
• Maximum Operating Temperature: + 70 C
• Ethernet Connection Type: 10BASE-T or 100BASE-TX
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• No. Of Ports: 2
• Ethernet Type: IEEE 802.3 / 802.3u
• Interface Type: HBI
• Supply Current: 85mA
• Supply Voltage Range: 1.62V To 3.6V
• Operating Temperature Range: 0°C To +70°C
• Rohs Compliant: Yes
• For Use With: 638-1074 - EVALUATION BOARD LAN9221-ABZJ
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 638-1073

Revision 1.0 (05-17-10)
Chapter 7 NetDetach Operation
NetDetach operation is supported only by LAN9500A/LAN9500Ai
NetDetach is a mode of operation where the device detaches from the USB bus after the Ethernet
cable is disconnected. This is advantageous for mobile devices, as an attached USB device may
prevent the Host CPU from entering the APCI C3 state. Allowing the CPU to enter the C3 state
maximizes battery life, as the C3 state is the lowest of the four APCI power states.
When detached, the device is in a low power state. After the Ethernet cable is reconnected, or a
programmed GPIO pin asserts, the device automatically attaches to the USB bus. GPIO pin assertion
is supported so that this feature can be used with external PHY mode. In this case, the external PHY’s
link LED would be connected to a GPIO.
LAN9500A/
LAN9500Ai
...ZZZ
SMSC
Ethernet
Figure 7.1 Device Detach
DATASHEET
1
2
3
44
Battery-powered Netbook PC
may enter C3 sleep mode
Remove Ethernet Cable
USB Electricals Detach
USB 2.0 to 10/100 Ethernet Controller
.
SMSC LAN950x Family
Datasheet