FX614D4-TR1K

Overview

The FX614D4-TR1K is a Bell 202 compatible modem integrated circuit manufactured by CML Micro. It supports asynchronous data transmission and reception at 1200 bits/sec, with optional back channels of 5 bits/sec or 150 bits/sec. The device operates on a supply voltage ranging from 3.0V to 5.5V, consuming 1.0mA during active operation and 1μA in 'Zero-Power' mode. It utilizes a 3.579545MHz crystal clock rate and features an optional line equalizer and data retiming facility. The component is housed in a 16-pin SOIC package (D4) and functions within an operating temperature range of -40°C to +85°C.

Feature Summary

• Supports Bell 202 standard modulation for reliable telephone telemetry communication
• Integrates low-power architecture with a dedicated 'Zero-Power' sleep mode
• Includes programmable receive filter equalization for signal integrity optimization
• Provides hardware-based data retiming capabilities to reduce microcontroller overhead

Applications

• Telephone telemetry systems requiring low power consumption
• Portable terminal devices utilizing battery or line-powered sources
• Bell 202 type asynchronous data communication networks

Procurement Notes

Verify the specific suffix D4 against official documentation to confirm the 16-pin SOIC package configuration. Ensure that the TR1K designation aligns with the manufacturer's current reel specifications. Cross-reference the part number with the original datasheet to validate all electrical parameters before integration into the design.

Selection Notes

Select this component when designing systems requiring strict Bell 202 compliance with minimal power usage. Consider the integrated data retiming feature if UART resources are limited in the host microcontroller. Verify that the application environment remains within the specified -40°C to +85°C temperature range for optimal performance.

Part Context

The FX614 series represents a legacy CMOS modem solution designed for efficient voice-grade channel utilization. The D4 suffix specifically denotes the surface-mount SOIC package variant, distinguishing it from through-hole options. This component belongs to the broader family of communication semiconductors developed for critical infrastructure and telemetry applications.

Replacement Considerations

Consult the manufacturer's product transition notices regarding prefix changes from FX to CMX. Verify functional compatibility with newer iterations such as the CMX614 series before substitution.