1 of 167 REV: 122006
Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device
may be simultaneously available through various sales channels. For information about device errata, click here: www.maxim-ic.com/errata.
GENERAL DESCRIPTION
The DS33Z41 extends a 10/100 Ethernet LAN
segment by encapsulating MAC frames in HDLC or
X.86 (LAPS) for transmission over up to four
interleaved PDH/TDM data streams using robust,
balanced, and programmable inverse multiplexing.
The Interleave Bus (IBO) serial link supports
seamless bidirectional interconnection with Dallas
Semiconductor’s T1/E1 framers and transceivers.
The device performs store-and-forward of packets
with full wire-speed transport capability. The built-in
Committed Information Rate (CIR) Controller
provides fractional bandwidth allocation up to the
line rate in increments of 512kbps.
FUNCTIONAL DIAGRAM
FEATURES
10/100 IEEE 802.3 Ethernet MAC (MII and
RMII) Half/Full Duplex with Automatic Flow
Control
Layer 1 Inverse Multiplexing Allows Bonding of
Up to 4 T1/E1/J1 or DSL Links
Supports Up to 7.75ms Differential Delay
Channel (Byte) Interleaved Bus Operation
In-Band OAM and Signaling Capability
HDLC/LAPS Encapsulation with Programmable
FCS, Interframe Fill
Committed Information Rate Controller Provides
Fractional Allocation in 512kbps Increments
Programmable BERT for the Serial Interface
External 16MB, 100MHz SDRAM Buffering
Parallel Microprocessor Interface
1.8V Operation with 3.3V Tolerant I/O
IEEE 1149.1 JTAG Support
Features continued on page 8.
APPLICATIONS
Bonded Transparent LAN Service
LAN Extension
Ethernet Delivery Over T1/E1/J1, T3/E3, OC-1/EC-1,
G.SHDSL, or HDSL2/4
ORDERING INFORMATION
PART TEMP RANGE PIN-PACKAGE
DS33Z41 -40°C to +85°C 169 CSBGA
10/100
MAC
SDRAM
MII/RMII
µ
C
Config.
Loader
DS33Z41
10/100
Ethernet
PHY
Serial
Port
Up to 4
Transceivers
or Framers
BERT
HDLC/X.86
Mapper
IBO
DS33Z41 Quad IMUX Ethernet Mapper