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DS21455N+

IC LIU QUAD T1/E1/J1 256-BGA

Product Category: Telecom Interface ICs
Mfr. Part #
DS21455N+
Manufacturer: Maxim Integrated
Package: 256-BGA
Lead Free Status /RoHS Status:
Data Sheet: DS21455N+ Datasheet
Inventory: In Stock

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Mfr. Part #: DS21455N+

Specifications
Product Details

Specifications

Manufacturer Maxim Integrated

Product Category Telecom Interface ICs

Series DS21455N

Product T1/E1/J1 Line Interface Units - LIUs

Packaging Tray

Unit-Weight 0.098203 oz

Mounting-Style SMD/SMT

Package-Case 256-BGA

Operating-Temperature -40Â°C ~ 85Â°C

Mounting-Type Surface Mount

Function *

Number-of-Channels 4 Channel

Interface LIU

Voltage-Supply 3.135 V ~ 3.465 V

Supplier-Device-Package 256-BGA (27x27)

Number-of-Circuits 4 Circuits

Watt *

Current-Supply *

Data-Rate 64 kb/s

Maximum Operating Temperature + 85 C

Operating temperature range - 40 C

Operating-Supply-Voltage 3.3 V

Part-#-Aliases 90-21455+N00

Supply-Voltage-Max 3.465 V

Supply-Voltage-Min 3.135 V

Package-Case BGA-256

Product Details

GENERAL DESCRIPTION

The DS21455 and DS21458 are quad monolithic devices featuring independent transceivers that can be software configured for T1, E1, or J1 operation. Each is composed of a line interface unit (LIU), framer, HDLC controllers, and a TDM backplane interface, and is controlled via an 8-bit parallel port configured for Intel or Motorola bus operations. The DS21455* is a direct replacement for the older DS21Q55 quad MCM device. The DS21458, in a smaller package (17mm CSBGA) and featuring an improved controller interface, is software compatible with the older DS21Q55.

FEATURES

Four Independent Transceivers, Each Having the Following Features:
â– Complete T1 (DS1)/ISDN-PRI/J1 Transceiver Functionality
â– Complete E1 (CEPT) PCM-30/ISDN-PRI Transceiver Functionality
â– Short- and Long-Haul Line Interface for Clock/Data Recovery and Waveshaping
â– CMI Coder/Decoder
â– Crystal-Less Jitter Attenuator
â– Fully Independent Transmit and Receive Functionality
â– Dual HDLC Controllers
â– On-Chip Programmable BERT Generator and Detector
â– Internal Software-Selectable Receive- and Transmit-Side Termination Resistors for 75â„¦/100â„¦/120â„¦ T1 and E1 Interfaces
â– Dual Two-Frame Elastic-Store Slip Buffers that can Connect to Asynchronous Backplanes Up to 16.384MHz
â– 16.384MHz, 8.192MHz, 4.096MHz, or 2.048MHz Clock Output Synthesized to Recovered Network Clock
â– Programmable Output Clocks for Fractional T1, E1, H0, and H12 Applications
â– Interleaving PCM Bus Operation
â– 8-Bit Parallel Control Port, Multiplexed or Nonmultiplexed, Intel or Motorola
â– IEEE 1149.1 JTAG-Boundary Scan
â– 3.3V Supply with 5V Tolerant Inputs and Outputs
â– DS21455 Directly Replaces DS21Q55
â– Signaling System 7 (SS7) Support
â– RAI-CI, AIS-CI Support

APPLICATIONS

Routers
Channel Service Units (CSUs)
Data Service Units (DSUs)
Muxes
Switches
Channel Banks
T1/E1 Test Equipment

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Mfr. Part #: DS21455N+