XRT59L91

Single Chip E1 Line Interface Unit
Data Sheets OBS (Obsolete)

Overview

# of Channels 1
Data Rate(s) E1
Clk Rec No
SH/LH S
Op Pwr Sup/Max Cur 3.3V ±5%, 56mA
Package SOIC-16
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The XRT59L91 and XRT5997 are primarily targeted toward manufacturers of E1 equipment. Some of the primary target applications include telecommunications manufacturers utilizing multi-channel line cards, as well as, network multiplexers, central office switches and digital cross connects.

Typical of SDH applications, E1 line cards have 21 channels. By virtue of Exar's innovative seven-channel design (XRT5997), only three devices, instead of the customary seven, are needed for a standard Analog Front End (AFE). This device count reduction improves both board real estate, and system costs allowing OEMs to offer the latest, most competitive systems to their customers.

For each device, there is an independent driver and receiver circuitry for each channel, allowing seamless Pulse Code Modulation (PCM) interfacing. Each of the drivers can be independently disabled giving designers' greater flexibility in developing optimal power management and back-up redundancy solutions.

Because both devices are based upon standard CMOS process, conversion of AMI line coded signals to TTL/CMOS logic levels is virtually automatic. In addition, designers have the flexibility to interface to either 75 or 120-Ohm lines for transformer coupled configurations.

The XRT59L91ID is available in a 16-lead JEDEC SOIC package. Similarly, the XRT5997IV is available in a 100-pin TQFP package. Both products are designed for industrial temperature ranges.

  • Complete Single- or Seven-Channel E1 Transceiver
  • Low Power 3.3V Operations
  • TCLK Duty Cycle Adjust Circuitry
  • Pb-Free, RoHS Compliant Versions Offered

  • Network Mulitplexers
  • Central Office Switch
  • Digital Cross Connext
  • Telecommunications

Documentation & Design Tools

Type Title Version Date File Size
Data Sheets XRT59L91 Single-Chip E1 Line Interface Unit 1.0.0 October 1999 207.6 KB
Application Notes TAN-200, MaxLinear APIs - OS Portability 1.0.0 August 2007 88.5 KB
Application Notes TAN-058, DS-1/E1 GR-1089 Surge Protection 1.0.1 September 2006 69.4 KB
Product Brochures Interface Brochure November 2023 3.7 MB
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Quality & RoHS

Part Number RoHS | Exempt RoHS Halogen Free REACH TSCA MSL Rating / Peak Reflow Package
XRT59L91ID-F N Y Y Y Y L3 / 260ᵒC WSOIC16
XRT59L91IDTR-F N Y Y Y Y L3 / 260ᵒC WSOIC16

Click on the links above to download the Certificate of Non-Use of Hazardous Substances.

Additional Quality Documentation may be available, please Contact Support.

Parts & Purchasing

Part Number Pkg Code Min Temp Max Temp Status Suggested Replacement PDN
XRT59L91ID-F WSOIC16 -40 85 OBS
XRT59L91IDTR-F WSOIC16 -40 85 OBS
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Part Status Legend
Active - the part is released for sale, standard product.
EOL (End of Life) - the part is no longer being manufactured, there may or may not be inventory still in stock.
CF (Contact Factory) - the part is still active but customers should check with the factory for availability. Longer lead-times may apply.
PRE (Pre-introduction) - the part has not been introduced or the part number is an early version available for sample only.
OBS (Obsolete) - the part is no longer being manufactured and may not be ordered.
NRND (Not Recommended for New Designs) - the part is not recommended for new designs.

Packaging

Pkg Code Details Quantities Dimensions PDF
WSOIC16
  • JEDEC Reference: MS-013
  • MSL Pb-Free: L3 @ 260ºC
  • MSL SnPb Eutectic: n/a
  • ThetaJA: 69.1ºC/W
  • Bulk Pack Style: Tube
  • Quantity per Bulk Pack: 47
  • Quantity per Reel: 1500
  • Quantity per Tube: 47
  • Quantity per Tray: n/a
  • Reel Size (Dia. x Width x Pitch): 330 x 16 x 12
  • Tape & Reel Unit Orientation: Quadrant 1
  • Dimensions: mm
  • Length: 10.30
  • Width: 7.50
  • Thickness: 2.65
  • Lead Pitch: 1.27

Notifications

Distribution Date Description File
02/03/2022 Product Discontinuation Notice
08/10/2017 Qualification of alternate assembly subcon, ANST.
11/16/2015 Updated information subsequent to original published PCN 15-0625-02 on 09/29/2015. Addendum: Update to package marking.
09/29/2015 Greatek as alternate assembly site Addition of an alternate production site, Greatek, Taiwan for 16L, 24L and 28L SOICW
07/15/2010 Change in packing quantity per reel. Standardization
07/14/2010 Standardize packing quantity in tubes, NSOIC9 (97 to 98 units/tube), WSOIC16 (46 to 47 units/tube), TSSOP16 (94 to 95 units/tube) Standardization

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The -F suffix indicates ROHS / Green compliance:
https://www.exar.com/quality-assurance-and-reliability/lead-free-program