KSZ8851-32MQLI Micrel Inc, KSZ8851-32MQLI Datasheet - Page 26

• Manufacturer Part Number: KSZ8851-32MQLI
• Description: IC CTLR MAC/PHY NON PCI 128PQFP
• Manufacturer: Micrel Inc

Specifications of KSZ8851-32MQLI

• Controller Type: Ethernet Controller, MAC/PHY
• Interface: Bus
• Voltage - Supply: 1.8V, 2.5V, 3.3V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 128-MQFP, 128-PQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Other names: 576-3630; KSZ8851-32MQLI

Straight Cable
A straight cable connects an MDI device to an MDI-X device or an MDI-X device to an MDI device. The following diagram
shows a typical straight cable connection between a network interface card (NIC) and a switch, or hub (MDI-X).
Crossover Cable
A crossover cable connects an MDI device to another MDI device, or an MDI-X device to another MDI-X device. The
following diagram shows a typical crossover cable connection between two chips or hubs (two MDI-X devices).
August 2009
Micrel, Inc.
Media Dependent Interface
Transmit Pair
Receive Pair
Modular Connector
RJ45 Pins
10/100 Ethernet
(RJ-45)
Figure 4. Typical Straight Cable Connection
1
2
3
6
NIC
Table 2. MDI/MDI-X Pin Definitions
MDI
1
2
3
4
5
6
7
8
Signals
TD+
RD+
RD-
TD-
Straight
Cable
26
RJ45 Pins
1
2
3
6
Media Dependent Interface
MDI-X
(Repeater or Switch)
Modular Connector
1
2
3
4
5
6
7
8
10/100 Ethernet
(RJ-45)
HUB
Signals
Transmit Pair
Receive Pair
RD+
TD+
RD-
TD-
KSZ8851-16/32 MQL/MQLI
M9999-083109-2.0