Dual T1/E1/J1 Framer and Line Interface Combination featuring R³ Technology™
Data Sheets OBS (Obsolete)


# of Channels 2
Data Rate(s) T1/E1/J1
Clk Rec Yes
Temperature Range (°C) Ind.
Op Pwr Sup/Max Cur 3.3V +/-5%
Package BGA-225
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The XRT86VL32 is a two-channel 1.544 Mbit/s or 2.048 Mbit/s DS1/E1/J1 framer and LIU integrated solution featuring R³ Technology™ (Reconfigurable, Relayless Redundancy). The physical interface is optimized with internal impedance, and with the patented pad structure, The XRT86VL32 provides protection form power failures and hot swapping.

The XRT86VL32 contains an integral DS1/E1/J1 framer and LIU which provide DS1/E1/J1 framing and error accumulation in accordance with ANSI/ITU_T specifications. Each framer has its own framing synchronizer and transmit-receive slip buffers. The slip buffers can be independently enabled or disabled as required and can be configured to frame the common DS1/E1/J1 signal formats. It also contains a transmit and overhead data input port for each channel, that permits data line terminal equipment direct access to the out-bound T1/E1/J1 frames. In the receive direction, it has complementary blocks to the transmit path.

The device is compliant with all T1/E1/J1 specifications including ANSI T1/E1.107-1998, ANSI T1/E1. 403-1995, ANSI T1/E1. 231-1993, ANSI T1/E1. 408-1990, AT&T TR 62411 (12-90) TR540616, and ITU G. 703, G. 704, G. 706, and G. 733. Also, AT&T Pub. 43801, and ETS 300 011, 300 233, JT G. 703, JT G. 704, JT G. 706, I. 431.

R³ Technology™ Overview

Exar's breakthrough R³ Technology™ delivers key benefits to customers designing T1/E1/J1 interface cards. The devices are Reconfigurable with integrated termination supporting all common T1/E1/J1 line impedances enabling customers to build one board with a single bill-of-materials. Now, final device configuration can be done just prior to line-card installation. This unique capability prevents customers from having to unnecessarily stockpile an inventory of all configurations to accommodate changing market conditions. Also, the series employs Relayless Redundancy eliminating the need for external relays for 1:1 and 1+1 applications by establishing a back-up channel that can be brought on-line in the event of failure. The first application of this technology was multi-channel long-haul, short-haul (1, 4, and 8-channel) Line Interface Units (LIUs) that are already designed in at key customers in the targeted markets of Multi-Service Provisioning Platforms (MSPPs), access devices, media gateways, routers, and frame relay access devices.

  • Two Independent, Full Duplex DS1 Tx ands Rx Framer/LIUs
  • Interfaces with Leading Microprocessors: Intel, Motorola, MIPS, Power PC
  • Three Integrated HDLC Controllers with Two 96-byte Transmit HDLC Buffers and Two 96-byte Receive Buffers per Channel
  • Pb-Free, RoHS Compliant Versions Offered

  • High-Density T1/E1/J1 Interfaces for Multiplexers, Switches, LAN Routers and Digital Modems
  • SONET/SDH Terminal or Add/Drop Multiplexers (ADMs)
  • T1/E1/J1 Add/Drop Multiplexers (MUX)
  • Channel Service Units (CSUs): T1/E1/J1 and Fractional T1/E1/J1

Documentation & Design Tools

Type Title Version Date File Size
Data Sheets XRT86VL3x T1/E1/J1 FRAMER/LIU Combo - Architecture Description 1.2.3 October 2007 1.3 MB
Data Sheets XRT86VL32 E1 Register Description 1.2.1 September 2007 366.8 KB
Data Sheets XRT86VL32 Dual T1/E1/J1 FRAMER/LIU Combo - T1 Register Description 1.2.0 January 2007 2.2 MB
Data Sheets XRT86VL32 Dual T1/E1/J1 FRAMER/LIU Combo - E1 Register Description 1.2.0 January 2007 2.5 MB
Application Notes TAN-064, XRT86VL3x Interface Description 1.0.0 October 2007 33.7 KB
Application Notes TAN-200, MaxLinear APIs - OS Portability 1.0.0 August 2007 88.5 KB
Application Notes TAN-065, XRT86VL3x Physical Interface 1.0.0 July 2007 75.9 KB
Application Notes TAN-062, XRT86VL3x Processing HDLC Messages 1.0.0 February 2007 70.8 KB
Application Notes TAN-060, Converting From XRT86L3x to XRT86VL3x 1.0.0 October 2006 19 KB
Application Notes TAN-058, DS-1/E1 GR-1089 Surge Protection 1.0.1 September 2006 69.4 KB
Application Notes TAN-059, DS-1/E1 Line Recovered Clock PLL Timing 1.0.0 July 2006 23.4 KB
Application Notes TAN-057, DS1/E1 Layout Recommendations 1.0.0 June 2006 30 KB
Application Notes TAN-063, XRT86VL3x HMVIP High Speed Multiplexed Mode 1.0.0 April 2005 216.9 KB
Application Notes TAN-067, R3 Technology For T/E Carrier Redundancy Applications 1.0.0 April 2004 203.4 KB
Application Notes TAN-056, High Impedance Drivers During Power Failure Using XRT83SL3X/L3X LIU 1.0.0 November 2003 75.1 KB
Schematics & Design Files Device Schematic 0.0.0 June 2006 74.3 KB
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Quality & RoHS

Part Number RoHS | Exempt RoHS Halogen Free REACH TSCA MSL Rating / Peak Reflow Package
XRT86VL32IB-F N Y Y Y Y L4 / 245ᵒC PBGA225

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
XRT86VL32IB PBGA225 -40 85 OBS XRT86VL32IB-F
XRT86VL32IB-F PBGA225 -40 85 OBS XRT86VL34IB-F
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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.


Pkg Code Details Quantities Dimensions PDF
  • JEDEC Reference: MS-034
  • MSL Pb-Free: L4 @ 245ºC
  • MSL SnPb Eutectic: n/a
  • ThetaJA: 24ºC/W
  • Bulk Pack Style: Tray
  • Quantity per Bulk Pack: 84
  • Quantity per Reel: n/a
  • Quantity per Tube: n/a
  • Quantity per Tray: 84
  • Reel Size (Dia. x Width x Pitch): n/a
  • Tape & Reel Unit Orientation: n/a
  • Dimensions: mm
  • Length: 17
  • Width: 17
  • Thickness: 2.1
  • Lead Pitch: 1.00


Distribution Date Description File
05/06/2019 Product Discontinuation Notice
07/12/2017 Product Discontinuation Notice

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The -F suffix indicates ROHS / Green compliance: