ICL3207CA

Overview

The ICL3207CA is a low-power RS-232 transceiver manufactured by Intersil, designed for operation with supply voltages ranging from 3 V to 5.5 V. It integrates five drivers and three receivers, supporting full-duplex communication at data rates up to 250 kb/s. The device operates within an industrial temperature range of -40°C to +85°C and draws only 1 mA of supply current during active operation. It features 15 kV ESD protection on all RS-232 lines and utilizes small external capacitors via efficient on-chip charge pumps. Packaged in a 24-pin SSOP, it meets EIA/TIA-232 and V.28/V.24 specifications.

Feature Summary

• Integrates five drivers and three receivers for complex multi-port serial communication
• Provides robust 15 kV ESD protection on RS-232 input and output pins
• Operates efficiently on single 3 V to 5.5 V power supplies with minimal quiescent current
• Includes automatic powerdown functionality to significantly reduce standby power consumption

Applications

• ISDN Terminal Adaptors requiring reliable serial connectivity
• Portable devices such as PDAs and Palmtops where space and power are constrained
• Notebook and laptop computer peripheral interfaces
• Industrial equipment utilizing RS-232 communication protocols

Procurement Notes

Verify the specific suffix against official Renesas or Intersil documentation to confirm exact electrical grades and packaging options. Confirm availability status as distribution channels may list obsolete stock. Ensure compatibility with existing board layouts regarding capacitor values and pin configurations before procurement.

Selection Notes

Select this component when designing systems requiring multiple transmit and receive channels within a compact footprint. It is suitable for applications needing high ESD immunity and low power consumption without sacrificing data integrity. Compare against similar family members like the ICL3207E if extended temperature ranges or different speed capabilities are required.

Part Context

This part belongs to the ICL32X7E series of low-power RS-232 transceivers. The family shares common architectural features such as efficient charge pumps and automatic powerdown circuits. Variants within the series differ primarily in operating temperature ranges and specific driver/receiver counts, allowing designers to choose based on thermal and interface requirements.

Replacement Considerations

Direct replacements include the ICL3207EIA for commercial grade operations or the ICL3207ECAZ for extended temperature ranges. Verify pinout compatibility and ensure that the substitute part supports the required 250 kb/s data rate and 15 kV ESD protection levels specified for the original design.