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Dallas ships smaller DS3/E3 framers

Posted: 05 Feb 2003 ?? ?Print Version ?Bookmark and Share

Keywords:dallas semiconductor? ds314x? ds314x? ds3141? ds3142?

Dallas Semiconductor Corp. has introduced its DS314x family of DS3/E3 framers that are available in a 13mm, 144-pin CSBGA package. The family includes the DS3141, DS3142, DS3143, and DS3144 (single, dual, triple, and quad channel, respectively). The company claims that the DS3144 is >77 percent smaller than competing quad devices.

The framers interface to a variety of line interface units (LIU), microprocessor buses, and other system components without glue logic. Each framer channel has its own HDLC controller, FEAC controller, bit error-rate tester, as well as full support for error detection and generation, performance monitoring, and loopbacks.

Other features include framing and formatting to M23 DS3, C-Bit Parity DS3, and G.751 E3; NRZ or dual-rail LIU interface; optional B3ZS/HDB3 encoder and decoder; per-channel power-down; and 8-bit microprocessor interface. Each framer channel is independently configurable.

The DS314x devices operate from a 3.3V supply and have 5V-tolerant I/Os. All four products are available in both commercial and industrial operating temperature ranges. Prices start at $12.49 per port for the commercial temperature range, and $14.36 per port for industrial (1,000-up).

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