Maxim > Products > T/E Carrier and Packetized Communications > DS3251, DS3252, DS3253, DS3254

DS3251, DS3252, DS3253, DS3254

Single/Dual/Triple/Quad DS3/E3/STS-1 LIUs
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Status Explanations for product status codes

Active: In Production.

Description

The DS3251 (single), DS3252 (dual), DS3253 (triple), and DS3254 (quad) line interface units (LIUs) perform the functions necessary for interfacing at the physical layer to DS3, E3, or STS-1 lines. Each LIU has independent receive and transmit paths and a built-in jitter attenuator. An on-chip clock adapter generates all line-rate clocks from a single input clock. Control interface options include 8-bit parallel, SPI, and hardware mode.
 

Data Sheet

Download this datasheet in PDF formatDownload Rev 2 (PDF, 908kB)
Send this datasheet to any email addressE-Mail

Errata DS3251 325XA2.pdf
Errata DS3252 325XA2.pdf
Errata DS3253 325XA2.pdf
Errata DS3254 325XA2.pdf
Errata DS3251 325XA3.pdf
Errata DS3252 325XA3.pdf
Errata DS3253 325XA3.pdf
Errata DS3254 325XA3.pdf
An evaluation kit is available: DS3254DK

Key Features

  • Pin-Compatible Family of Products
  • Each Port Independently Configurable
  • Receive Clock and Data Recovery for up to 380 meters (DS3), 440 meters (E3), or 360 meters (STS-1) of 75Ω Coaxial Cable
  • Standards-Compliant Transmit Waveshaping
  • Three Control Interface Options: 8-Bit Parallel, SPI, and Hardware Mode
  • Built-In Jitter Attenuators can be Placed in Either the Receive or Transmit Paths
  • Jitter Attenuators Have Provisionable Buffer Depth: 16, 32, 64, or 128 Bits
  • Built-In Clock Adapter Generates All Line-Rate Clocks from a Single Input Clock (DS3, E3, STS-1, OC-3, 19.44MHz, 38.88MHz, 77.76MHz)
  • B3ZS/HDB3 Encoding and Decoding
  • Minimal External Components Required
  • Local and Remote Loopbacks
  • Low-Power 3.3V Operation (5V Tolerant I/O)
  • Industrial Temperature Range: -40°C to +85°C
  • Small Package: 144-Pin, 13mm x 13mm Thermally Enhanced CSBGA
  • Drop-In Replacement for DS3151/DS3152/DS3153/DS3154 LIUs
  • IEEE 1149.1 JTAG Support
  

Applications/Uses

  • Access Concentrators
  • ATM and Frame Relay Equipment
  • CSUs/DSUs
  • Digital Cross-Connects
  • DSLAMs
  • PBXs
  • Routers/Switches
  • SONET/SDH and PDH Multiplexers
   

Key Specifications:

T/E Carrier & Packetized Products
Part Number Transmission Standard Functions Channels VSUPPLY
(V)		 EV Kit Package/Pins Smallest Available Pckg.
(mm2)		 Budgetary Price
max w/pins See Notes
DS3251 
STS-1
T3/E3
 LIU 1 3.3 -
TECSBGA/144
 169 $16.48 @1k
DS3252  2 -
TECSBGA/144
 $33.37 @1k
DS3253  3 Yes
TECSBGA/144
 $49.44 @1k
DS3254  4 Yes
TECSBGA/144
 $57.60 @1k
See All T/E Carrier & Packetized Products (100)
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.


Diagram

DS3251, DS3252, DS3253, DS3254: Functional Diagram
Functional Diagram

Application Notes

Application Note 404   Modifying the E3 Template Compliance of the DS3150, DS315x and DS325x
Application Note 3410   Guidelines for Laying Out T3 and E3 Network Interfaces
Application Note 3547   Measuring Return Loss on T3/E3/STS-1 LIUs
Application Note 3556   Configuring Dallas Semiconductor LIUs Without a Microcontroller
Application Note 3609   Clock-Rate-Adapter (CLAD) Features for DS325X, DS316X, DS317X, and DS318X
Application Note 3670   Measuring Return Loss Using the Advantest R3132 Spectrum Analyzer
Application Note 3777   Using Software to Shape the Transmit Pulse of the DS325x LIUs

Product Guides

Communications (PDF)

Reliability Reports

Reliability Report: DS3251.pdf DS3252.pdf DS3253.pdf DS3254.pdf

Software/Models

DS3251 BSDL Model
DS3251 IBIS Model
DS3252 BSDL Model
DS3252 IBIS Model
DS3253 BSDL Model
DS3253 IBIS Model
DS3254 BSDL Model
DS3254 Cadence Allegro Symbol
DS3254 Cadence Concept Symbol
DS3254 IBIS Model

Ordering Information

Filters: Part Number: Package: Temperature: Tape and Reel Sample
Part Number Free
Sample		 Buy Status Explanations for product status codes Package:
TYPE PINS FOOTPRINT
DRAWING  CODE/VAR * 		Temp RoHS/Lead-Free?
Materials Analysis
DS3251+  
Active TECSBGA;144 pin;169 mm²
Outline Drawing:21-0314 (PDF)
Land Pattern: 90-0270 (PDF)
Use pkgcode/variation: X144T+1*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
DS3251N    
Active TECSBGA;144 pin;169 mm²
Outline Drawing:21-0314 (PDF)
Land Pattern: 90-0270 (PDF)
Use pkgcode/variation: X144T-1*
-20°C to +85°C RoHS/Lead-Free: No
Materials Analysis
DS3251N+  
Active TECSBGA;144 pin;169 mm²
Outline Drawing:21-0314 (PDF)
Land Pattern: 90-0270 (PDF)
Use pkgcode/variation: X144T+1*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
DS3252+  
Active TECSBGA;144 pin;169 mm²
Outline Drawing:21-0314 (PDF)
Land Pattern: 90-0270 (PDF)
Use pkgcode/variation: X144T+1*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
DS3252N    
Active TECSBGA;144 pin;169 mm²
Outline Drawing:21-0314 (PDF)
Land Pattern: 90-0270 (PDF)
Use pkgcode/variation: X144T-1*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
DS3252N+  
Active TECSBGA;144 pin;169 mm²
Outline Drawing:21-0314 (PDF)
Land Pattern: 90-0270 (PDF)
Use pkgcode/variation: X144T+1*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
DS3253+  
Active TECSBGA;144 pin;169 mm²
Outline Drawing:21-0314 (PDF)
Land Pattern: 90-0270 (PDF)
Use pkgcode/variation: X144T+1*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
DS3253DK    
Active N/A;

Land Pattern: Not Available

0°C to +70°C See data sheet
DS3253N    
Active TECSBGA;144 pin;169 mm²
Outline Drawing:21-0314 (PDF)
Land Pattern: 90-0270 (PDF)
Use pkgcode/variation: X144T-1*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
DS3253N#    
Active TECSBGA;144 pin;169 mm²
Outline Drawing:21-0314 (PDF)
Land Pattern: 90-0270 (PDF)
Use pkgcode/variation: X144T-1*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
Part Number Free
Sample		 Buy Status Explanations for product status codes Package:
TYPE PINS FOOTPRINT
DRAWING  CODE/VAR * 		Temp RoHS/Lead-Free?
Materials Analysis
DS3253N+  
Active TECSBGA;144 pin;169 mm²
Outline Drawing:21-0314 (PDF)
Land Pattern: 90-0270 (PDF)
Use pkgcode/variation: X144T+1*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
DS3254+  
Active TECSBGA;144 pin;169 mm²
Outline Drawing:21-0314 (PDF)
Land Pattern: 90-0270 (PDF)
Use pkgcode/variation: X144T+1*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
DS3254A3+  
Active TECSBGA;144 pin;169 mm²
Outline Drawing:21-0314 (PDF)
Land Pattern: 90-0270 (PDF)
Use pkgcode/variation: X144T+1*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
DS3254N    
Active TECSBGA;144 pin;169 mm²
Outline Drawing:21-0314 (PDF)
Land Pattern: 90-0270 (PDF)
Use pkgcode/variation: X144T-1*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
DS3254N#    
Active TECSBGA;144 pin;169 mm²
Outline Drawing:21-0314 (PDF)
Land Pattern: 90-0270 (PDF)
Use pkgcode/variation: X144T-1*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
DS3254N+  
Active TECSBGA;144 pin;169 mm²
Outline Drawing:21-0314 (PDF)
Land Pattern: 90-0270 (PDF)
Use pkgcode/variation: X144T+1*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
DS3254NA3    
Active TECSBGA;144 pin;169 mm²
Outline Drawing:21-0314 (PDF)
Land Pattern: 90-0270 (PDF)
Use pkgcode/variation: X144T-1*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis

Notes:
  1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
  2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
  3. 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.
  4. * 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.

Similar Products by Function

See All T/E Carrier & Packetized Products (103 Products)

Evaluation Kits

DS3254DK Quad DS3/E3/STS-1 LIU Demo Kit

Products with Similar Part Numbers

DS3254DK Quad DS3/E3/STS-1 LIU Demo Kit

More Information

DS3254 Demo Kit


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Overview

  

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Ordering Info

  

Related Products

  
Description
Key Features
Applications/Uses
Key Specifications
Diagram
Notes and Comments
  Data Sheet
Errata
Application Notes
Evaluation Kits
Product Guides
Reliability Reports
Software/Models
  Price and Availability
Samples
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Rev 2; 2006-03-02
This page last modified: 2009-10-06

 


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