KSZ8842-16MVLI Micrel Inc, KSZ8842-16MVLI Datasheet
KSZ8842-16MVLI
Manufacturer Part Number
KSZ8842-16MVLI
Description
2-Port Ethernet Switch/Repeater + Generic (8, 16-bit) Bus Interface( )
Manufacturer
Micrel Inc
Specifications of KSZ8842-16MVLI
Controller Type
Ethernet Switch Controller
Interface
PCI
Voltage - Supply
3.1 V ~ 3.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
128-LQFP
Number Of Primary Switch Ports
2
Internal Memory Buffer Size
32
Operating Supply Voltage (typ)
3.3V
Fiber Support
Yes
Integrated Led Drivers
Yes
Phy/transceiver Interface
MII
Power Supply Type
Analog/Digital
Data Rate (typ)
10/100Mbps
Vlan Support
Yes
Operating Temperature (max)
85C
Operating Temperature (min)
-40C
Pin Count
128
Mounting
Surface Mount
Jtag Support
No
Operating Supply Voltage (max)
3.5V
Operating Supply Voltage (min)
3.1V
Operating Temperature Classification
Industrial
Data Rate
100Mbps
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
576-1635 - BOARD EVALUATION KSZ8842-16MVL
Current - Supply
-
Lead Free Status / RoHS Status
Compliant, Lead free / RoHS Compliant
Other names
576-2120
KSZ8842-16MVLI
KSZ8842-16MVLI
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
KSZ8842-16MVLI
Manufacturer:
Micrel
Quantity:
354
Micrel, Inc.
Note: For an MII/RMII, I
LinkMD is a registered trademark of Micrel, Inc.
Block Diagram
Description
The KSZ8842-16MQL and KSZ8842-32MQL are the
industry’s fi rst 2-port switches with a non-PCI CPU inter-
face. The KSZ8842-16MQL (or -32MQL) is a proven, 4th
generation, integrated, Layer 2 switch that is compliant to
the IEEE802.3u standard.
The KSZ8842-16MQL (or -32MQL) can be confi gured
as a low-latency repeater to allow for ‘cut thru’ in latency
critical Embedded or Industrial Ethernet applications. For
industrial automation applications in the repeater mode, the
KSZ8842-16MQL (or -32MQL) runs in half-duplex mode
regardless of the application.
The KSZ8842-16MQL (or -32MQL) offers an extensive
feature set that includes tag/port-based VLAN, QoS priority
management, MAC fi ltering function, MIB counters, and
CPU control/data interfaces to effectively address both
current and emerging Fast Ethernet applications.
The KSZ8842-16MQL (or -32MQL) contains two 10/100
transceivers with patented mixed-signal low-power technol-
ogy, two media access control (MAC) units, a direct memory
access (DMA) channel, a high-speed non-blocking switch
fabric, a dedicated 1K entry forwarding table, and on-chip
frame buffer memory.
www.micrel.com
TEL:
1.408.944.0800
2-Port Ethernet Switch with
2
C or SPI interface, use the KSZ8893MQL.
EEPROM I/F
P1 LED[3:0]
P2 LED[3:0]
Non-PCI Interface
MDI/MDI-X
MDI/MDI-X
FAX:
HP Auto
HP Auto
Processor Interface
Host Interface
8,16, 32-bit
Embedded
Generic
1.408.474.1000
Bus Interface Unit
Registers
Drivers
10/100
10/100
Control
PHY 1
PHY 2
Non-PCI
T/TX
T/TX
LED
CPU
HTTP://
www.micrel.com
Channel
10/100
10/100
MAC 1
MAC 2
DMA
Benefi ts
Offers all of the features of an integrated Layer 2
managed switch plus:
• Fully compliant to the IEEE802.3u standard
• Repeater mode capabilities to allow for ‘cut-thru’
• MAC fi ltering function to fi lter unicast packets
• Dynamic buffer memory scheme
• 2-Port switch with fl exible 8-, 16- or 32-bit generic
• Micrel LinkMD
• HP Auto MDIX crossover with disable and enable
• Industrial temperature support: –40
• Four priority queues to handle voice, video, data,
in latency critical Industrial Ethernet or Embedded
Ethernet applications
– Essential for applications such as Video over IP
where image jitter is unacceptable
host processor interfaces
determine cable length, diagnose faulty cables, and
determine distance to fault
option
(KSZ8842-16MVLI samples available)
and control packets
KSZ8842-16MQL
KSZ8842-32MQL
Management
Management
1K Look-up
EEPROM
Counters
Interface
Engine
Queue
Buffers
Frame
Buffer
MIB
®
cable diagnostic capabilities to
Product Brief
o
C to +85
o
C
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KSZ8842-16MVLI Summary of contents
Page 1
... HP Auto MDIX crossover with disable and enable option • Industrial temperature support: –40 (KSZ8842-16MVLI samples available) • Four priority queues to handle voice, video, data, and control packets HP Auto 10/100 10/100 ...
Page 2
... Per port-based software power-save on PHY (idle link detection, register confi guration preserved) • Single power supply: 3.3V • Commercial temperature range: 0 • Industrial temperature range: –40 (KSZ8842-16MVLI ordering code) • RoHS compliant devices Applications • Industrial applications for daisy chaining multiple devices • ...