DS26401 Datasheet, PDF (1/309 Pages) Dallas Semiconductor – Octal T1/E1/J1 Framer

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GENERAL DESCRIPTION
The DS26401 is an octal, software-selectable T1, E1
or J1 framer. It is composed of eight framer/formatters
and a system (backplane) interface. Each framer has
an HDLC controller that can be mapped to any DS0
or FDL (T1)/Sa (E1) bit. The DS26401 also includes a
full-feature BERT device, which can be used with any
of the eight T1/E1 ports, and an internal clock adapter
useful for creating synchronous, high frequency
backplane timing. The DS26401 is controlled through
an 8-bit parallel port that can be configured for
nonmultiplexed Intel or Motorola operation.
APPLICATIONS
Line Cards
Add-Drop Multiplexers
DSLAMs
Timing Systems
PBXs
Switches
Central Office Equipment
Routers
IMA
ATM
WAN Interface
Customer-Premise
Equipment
Go to www.maxim-ic.com/telecom for a complete list of
Telecommunications data sheets, evaluation kits, application
notes, and software downloads.
DS26401
Octal T1/E1/J1 Framer
FEATURES
§ 8 Independent, Full-Featured T1/E1/J1
Framers/Formatters
§ Independent Transmit and Receive Paths
§ Flexible Signaling Extraction and Insertion
§ Alarm Detection and Insertion
§ Transmit Synchronizer
§ AMI, B8ZS, HDB3, NRZ Line Coding
§ Performance Monitor Counters
§ BOC Message Controller (T1)
§ Two-Frame Elastic Store Buffers for Each
Transmitter and Receiver
§ One HDLC Controller per Framer
§ RAI-CI and AIS-CI Support
§ Full-Feature BERT can be Mapped to Any Port
§ Flexible TDM Backplane Supports Bus Rates
from 1.544MHz to 16.384MHz
§ Internal Clock Generator (CLAD) Supplies
16.384MHz, 8.192MHz, 4.096MHz, or 2.048MHz
§ JTAG Test Port
§ Single 3.3V Supply with 5V Tolerant Inputs
§ 17mm x 17mm, 256-Pin BGA (1.00mm Pitch)
ORDERING INFORMATION
PART
DS26401
DS26401N
TEMP RANGE
0°C to +70°C
-40°C to +85°C
PIN-PACKAGE
256 BGA
256 BGA
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.
1
REV: 072403