ICL3241CA-T

Overview

The ICL3241CA-T 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 three drivers and five receivers, supporting full-duplex communication at data rates up to 250 kb/s. The device features a shutdown mode that reduces operating supply current to approximately 1 mA. It includes enhanced automatic powerdown functionality and provides 15 kV electrostatic discharge (ESD) protection on all RS-232 lines. The component operates within a temperature range of 0°C to +70°C and utilizes an SSOP-28 package.

Feature Summary

• Integrates three independent drivers and five independent receivers for comprehensive RS-232 connectivity
• Features enhanced automatic powerdown circuitry to minimize power consumption during idle periods
• Provides robust 15 kV ESD protection on transmit and receive lines to safeguard connected equipment
• Supports single-supply operation from 3 V to 5.5 V with low standby current in shutdown mode

Applications

• Portable battery-powered devices requiring low-power serial communication
• Industrial control systems needing reliable RS-232 interfaces with ESD protection
• Embedded systems utilizing microcontrollers with limited power budgets

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing. Confirm the manufacturer designation as Intersil or Renesas, as ownership transitions may affect labeling. Ensure the SSOP-28 package matches the target PCB footprint. Check RoHS compliance status for environmental regulations. Validate the operating temperature range against system requirements.

Selection Notes

Select this component when three drivers and five receivers are required in a single package. Choose the ICL3241CA-T over higher-speed variants if data rates below 250 kb/s are sufficient. Consider the 3 V to 5.5 V supply range compatibility with the system's power rails. Evaluate the need for automatic powerdown features to extend battery life in portable applications.

Part Context

The ICL3241 belongs to the ICL324x family of RS-232 transceivers, which share similar pinouts and functional characteristics. Variants within the family differ primarily in the number of drivers and receivers, such as the ICL3221 with one driver and receiver, or the ICL3243 with two drivers and two receivers. The CA-T designation specifies the commercial temperature range and reel packaging format.

Replacement Considerations

The ICL3241ECAZ-T is a compatible alternative offering identical electrical specifications in an SSOP-28 package. Verify pin-to-pin compatibility before substitution. Ensure the replacement part supports the same 3 V to 5.5 V supply voltage range and 250 kb/s data rate.