KS8842-32MQL Micrel Inc, KS8842-32MQL Datasheet
KS8842-32MQL
Manufacturer Part Number
KS8842-32MQL
Description
IC SWITCH 10/100 32BIT 128PQFP
Manufacturer
Micrel Inc
Specifications of KS8842-32MQL
Applications
*
Mounting Type
Surface Mount
Package / Case
128-MQFP, 128-PQFP
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
Package Type
PQFP
Data Rate (typ)
10/100Mbps
Vlan Support
Yes
Operating Temperature (max)
70C
Operating Temperature (min)
0C
Pin Count
128
Mounting
Surface Mount
Jtag Support
No
Operating Supply Voltage (max)
3.5V
Operating Supply Voltage (min)
3.1V
Operating Temperature Classification
Commercial
Data Rate
100Mbps
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
KS8842-PMQL-EVAL - EVAL KIT EXPERIMENTAL KS8842KS8842-16MQL-EVAL - EVAL KIT EXPERIMENTAL KS8842
Lead Free Status / RoHS Status
Not Compliant, Lead free / RoHS Compliant
Other names
576-1459
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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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KS8842-32MQL Summary of contents
Page 1
Ethernet Switch with Non-PCI Interface 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 proven, 4th generation, integrated, Layer 2 switch that is ...
Page 2
Features Switch Management • Non-blocking switch fabric assures fast packet delivery by utilizing a 1K entry forwarding table • Fully compliant to the IEEE 802.3u standard • Full-duplex IEEE 802.3x fl ow control (Pause) with force mode option • Half-duplex ...