SLM2493

Overview

The SLM2493 is a 56Kbps/48Kbps V.92 embedded USB modem from Wintec Industries, utilizing the Silicon Labs ISOmodem chipset. It supports V.42 error correction and V.42bis/MNP5 data compression. The device features an 8-bit parallel interface with micro-controller control signals for host communication. It is available in a standard commercial temperature range or an industrial (-I) variant rated from -40°C to +85°C. The component is housed in a 2-inch by 1-inch DIP package with 40 pins at a 0.1-inch pitch.

Feature Summary

• Supports V.92 protocol specifications including 56Kbps downstream and 48Kbps upstream speeds
• Integrates V.42 error correction and V.42bis/MNP5 data compression capabilities
• Provides an 8-bit parallel interface mode for direct connection to host systems

Applications

• Communication systems requiring long-term product stability for FCC certification
• Medical systems needing extended product lifecycles for FDA compliance
• Embedded OEM designs utilizing the 2x1 inch DIP form factor

Procurement Notes

Verify the specific suffix when ordering: no suffix indicates standard temperature, while (-I) denotes the industrial grade operating range of -40°C to +85°C. Confirm whether bulk (BNA), bulk with accessories (BWA), or retail packaging (RWA) is required. Ensure the design accommodates the 40-pin DIP footprint and 8-bit parallel interface requirements.

Selection Notes

Select the SLM2493 over other SLM series models specifically for V.92 protocol support. Choose the (-I) suffix if the application environment exceeds standard commercial temperature limits. Verify that the host system can support the 8-bit parallel interface, as serial-only options are reserved for the smaller SL24xx series.

Part Context

This part belongs to the SLM Series of embedded modems manufactured by Wintec Industries. The series spans two generations of Silicon Labs modem chipsets and includes variants supporting speeds up to 56Kbps. The SLM2493 represents the top-tier speed option within this specific DIP-form-factor family.

Replacement Considerations

The SLM2415(-I) serves as a lower-speed alternative within the same series offering 14.4Kbps performance. For applications requiring a smaller physical footprint, the SL24xx series provides a 24-pin small form factor solution, though it supports serial mode only.