EEWORLDEEWORLDEEWORLD

Part Number

Search

KSZ8842-16

Description
DATACOM, LAN SWITCHING CIRCUIT, PQFP128
CategoryTopical application    Wireless rf/communication   
File Size749KB,126 Pages
ManufacturerMicrochip
Websitehttps://www.microchip.com
Download Datasheet Parametric Compare View All

KSZ8842-16 Overview

DATACOM, LAN SWITCHING CIRCUIT, PQFP128

KSZ8842-16 Parametric

Parameter NameAttribute value
Number of functions1
Number of terminals128
Maximum operating temperature70 Cel
Minimum operating temperature0.0 Cel
Rated supply voltage1.2 V
Processing package descriptionPlastic, Quad Flat Package-128
Lead-freeYes
EU RoHS regulationsYes
stateACTIVE
packaging shapeRectangle
Package SizeFLATPACK, FINE PITCH
surface mountYes
Terminal formGULL WING
Terminal spacing0.5000 mm
terminal coatingMATTE Tin
Terminal locationFour
Packaging MaterialsPlastic/Epoxy
Temperature levelCOMMERCIAL
Communication typeLAN switched circuit
KSZ8842-16/32
MQL/MVL/MVLI
2-Port Ethernet Switch with Non-PCI Interface
Data Sheet Rev 1.4
General Description
The KSZ8842-series of 2-port switches includes PCI and
non-PCI CPU interfaces, and are available in 8/16-bit
and 32-bit bus designs (see
Ordering Information).
This datasheet describes the KSZ8842M-series of non-
PCI CPU interface chips. For information on the
KSZ8842 PCI CPU interface switches, refer to the
KSZ8842P datasheet.
The KSZ8842M is the industry’s first fully managed, 2-
port switch with a non-PCI CPU interface. It is based on
a proven, 4
th
generation, integrated Layer-2 switch,
compliant with IEEE 802.3u standards. Also an industrial
temperature grade version of the KSZ8842, the
KSZ8842MQLI, can be ordered (see
Ordering
Information).
The KSZ8842M can be configured as a switch or as a
low-latency (≤ 310 nanoseconds) repeater in latency-
critical, embedded or industrial Ethernet applications.
For industrial applications, the KSZ8842M can run in
half-duplex mode regardless of the application.
The KSZ8842M offers an extensive feature set that
includes tag/port-based VLAN, quality of service (QoS)
priority management, management information base
(MIB) counters, and CPU control/data interfaces to
effectively address Fast Ethernet applications.
The KSZ8842M contains: Two 10/100 transceivers with
patented, mixed-signal, low-power technology, 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
an on-chip frame buffer memory.
Functional Diagram
P 1 H P A u to
M D I/M D I-X
1 K lo o k - u p
E n g in e
1 0 /1 0 0 B a s e -
T /T X
PHY 1
1 0 /1 0 0
MAC 1
FIFO, Flow Control, VLAN Tagging ,Priority
P 2 H P A u to
M D I/M D I-X
1 0 /1 0 0 B a s e -
T /T X
PHY 2
1 0 /1 0 0
MAC 2
S c h e d u lin g
M anagem ent
Em bedded
P r o c e s s o r In te r fa c e
N o n -P C I
CPU
Bus
In te r fa c e
U n it
QMU
DMA
C hannel
RXQ
4KB
B u ffe r
M anagem ent
TXQ
4KB
S w it c h
H ost
MAC
F ra m e
B u ffe rs
8 , 1 6 , o r 3 2 - b it
G e n e r ic H o s t
In te rfa c e
C o n tro l
R e g is t e r s
M IB
C o u n te rs
P 1 L E D [3 :0 ]
P 2 L E D [3 :0 ]
E E P R O M I/F
LED
D r iv e r s
EEPROM
In te rfa c e
Figure 1. KSZ8842M Functional Diagram
November 2005
1
Rev. 1.4

KSZ8842-16 Related Products

KSZ8842-16 KSZ8842-32
Description DATACOM, LAN SWITCHING CIRCUIT, PQFP128 DATACOM, LAN SWITCHING CIRCUIT, PQFP128
Number of functions 1 1
Number of terminals 128 128
Maximum operating temperature 70 Cel 70 Cel
Minimum operating temperature 0.0 Cel 0.0 Cel
Rated supply voltage 1.2 V 1.2 V
Processing package description Plastic, Quad Flat Package-128 Plastic, Quad Flat Package-128
Lead-free Yes Yes
EU RoHS regulations Yes Yes
state ACTIVE ACTIVE
packaging shape Rectangle Rectangle
Package Size FLATPACK, FINE PITCH FLATPACK, FINE PITCH
surface mount Yes Yes
Terminal form GULL WING GULL WING
Terminal spacing 0.5000 mm 0.5000 mm
terminal coating MATTE Tin MATTE Tin
Terminal location Four Four
Packaging Materials Plastic/Epoxy Plastic/Epoxy
Temperature level COMMERCIAL COMMERCIAL
Communication type LAN switched circuit LAN switched circuit
Serial port program sends and receives hexadecimal
I wrote a serial communication program under CE. There is no problem sending characters. Now I want to add support for hexadecimal sending. I checked it on the Internet and changed the code, but the r...
zhanggz02111 Embedded System
[Instrument Operation] How to perform ripple test? Teach you in one minute
【Instrument Practice】How to perform ripple test?...
aigtekatdz Test/Measurement
Creative/Flea Market~~My Favorite
Because there are few posts in the board and it is not very popular, I have never visited the creative/flea board. I just found out a few days ago that this board is the most promising and dynamic. Ev...
simonprince Talking
About DRV8833 driving vibration motor
Hello everyone, I am doing a vibration motor experiment recently. I chose a flat motor (mobile phone vibration motor) and a coreless motor. The driver chip is TI's brushed DC motor driver [url=http://...
wanseu Analogue and Mixed Signal
Running is so painful!!
I ran less than 1 kilometer and was panting. My lungs were about to explode. I couldn't hold on at all!! I'm looking for encouragement from people who share the same goal!!...
hightemplar Talking
Thank you for having you + that encounter in my life
There are too many people to thank, I cannot list them all, my parents, my mentors, my colleagues, my friends... I am grateful to my parents for giving me life. I am blessed to walk in this world with...
liweicheng1985 Talking

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 2791  2228  2457  2477  2602  57  45  50  53  20 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号