SI2457-D-GTR

Overview

The SI2457-D-GTR is a network controller and processor IC designed as a system-side ISOmodem. It supports data rates up to 56 kb/s and operates on a 3V to 3.6V supply voltage with a typical current consumption of 17 mA. The device features SPI and UART interfaces, functions at a frequency of 4.92 MHz, and is housed in a TSSOP-24 package. It is rated for commercial temperature ranges from 0°C to +70°C.

Feature Summary

• Supports global data communication standards including V.90, V.34, V.32, V.23, V.22, V.21, Bell 212A, and Bell 103.
• Integrates system-side modem functionality within a compact surface-mount package.

Applications

• Embedded modem applications requiring small board space
• Global data communication modules
• System-side ISODemod implementation

Procurement Notes

Verify the specific suffix 'GTR' indicates the tape-and-reel packaging configuration distinct from tube variants like 'FS'. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Check current production status as older SKUs may be nearing end-of-life or have limited availability.

Selection Notes

Select this component when a system-side modem interface is required with support for legacy and standard V.90 protocols. Ensure the design accommodates the 3.3V nominal supply and TSSOP-24 footprint. Compare against the SI2493 series if extended industrial temperature ranges (-40°C to +85°C) are necessary instead of the commercial range specified here.

Part Context

This part belongs to the Skyworks ISOmodem family, which provides integrated solutions for embedded modem applications. The SI2457 series is designed to minimize board space and power consumption while maintaining global compliance for data transmission across various telecommunications networks.

Replacement Considerations

The SI2457-D-FS serves as a tube-packaged alternative within the same functional family. For broader temperature operation, consider the SI2493-D-GTR, which shares similar electrical characteristics but offers an extended industrial temperature range.