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DS26556
4-Port Cell/Packet Over T1/E1/J1 Transceiver
4-Port Cell/Packet Over T1/E1/J1 Single-Chip Transceiver
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Status
Active: In Production.
Description
The DS26556 is a quad, software-selectable T1, E1, or J1 transceiver with a cell/packet/TDM interface. It is composed of four framer/formatters + LIUs, and a UTOPIA (cell), POS-PHY™ (packet), and TDM backplane interface. Each
framer has an HDLC controller that can be mapped to any DS0 or FDL (T1)/Sa (E1) bit. The DS26556 also includes full-featured BERT devices per port, and an internal clock adapter useful for creating synchronous, high-frequency backplane timing. The DS26556 is controlled through an 8-bit parallel port that can be
configured for nonmultiplexed Intel or Motorola operation.
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Data Sheet
Errata DS26556 26556A1.pdf
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Key Features
- Four Independent, Full-Featured T1/E1/J1 Transceivers
- UTOPIA 2 and 3 Cell Interface
- POS-PHY 2 and 3 Packet Interface
- TDM Backplane Supports TDM Bus Rates from 1.544MHz to 16.384MHz
- Alarm Detection and Insertion
- Full-Featured BERT for Each Port
- AMI, B8ZS, HDB3, NRZ Line Coding
- Transmit Synchronizer
- BOC Message Controller (T1)
- One HDLC Controller per Framer
- Performance Monitor Counters
- RAI-CI and AIS-CI Support
- 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)
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Applications/Uses
- Add/Drop Multiplexers
- Automated Teller Machines
- Central Office Equipment
- Customer-Premise Equipment
- DSLAMs
- IMA
- PBXs
- Routers
- Switches
- VoIP
- WAN Interface
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Key Specifications:
| T/E Carrier & Packetized Products |
| Part Number |
Transmission Standard |
Functions |
Channels |
In-to-Out Clocks
(MHz) |
VSUPPLY
(V) |
Package/Pins |
Smallest Available Pckg.
(mm2) |
Budgetary Price |
| max w/pins |
See Notes |
| DS26556 |
T1/E1/J1 |
Framer + LIU |
4 |
External Master Clock can be a multiple of 1.544 or 2.048 |
3.3 |
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289 |
$45.32 @1k |
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See All T/E Carrier & Packetized Products (100)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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Diagram
Block Diagram
Reliability Reports
Software/Models
Ordering Information
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Part Number
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Free
Sample |
Buy |
Status
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Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
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Temp |
RoHS/Lead-Free?
Materials Analysis
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| DS26556
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Active |
CSBGA;256 pin;289 mm²
Outline Drawing:21-0315 (PDF)
Land Pattern: 90-0291 (PDF)
Use pkgcode/variation: X256T-3*
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0°C to +70°C
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See data sheet
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| DS26556N
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Active |
CSBGA;256 pin;289 mm²
Outline Drawing:21-0315 (PDF)
Land Pattern: 90-0291 (PDF)
Use pkgcode/variation: X256T-3*
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-40°C to +85°C
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See data sheet
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Notes:
- Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
- Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
- Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
- * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
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Information Index
Rev 2;
2007-12-17
This page last modified: 2009-10-07
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