CA3227E

Overview

The CA3227E is a single full-duplex RS-232 transceiver manufactured by Intersil, now part of Renesas Electronics. It operates within a supply voltage range of 3 V to 5.5 V and supports data rates up to 1 Mb/s. The device features one driver and one receiver with full duplex communication capability. It includes a shutdown mode for power conservation and provides 15 kV ESD protection on all pins. The component is housed in an SSOP-16 package and functions within a commercial temperature range of 0°C to +70°C.

Feature Summary

• Integrated single-driver and single-receiver architecture for full-duplex RS-232 communication
• High electrostatic discharge (ESD) protection rated at 15 kV across all interface pins
• Low power consumption enabled by dedicated shutdown functionality
• Compatible with standard 3 V and 5 V power supply rails

Applications

• Industrial control systems requiring robust serial communication interfaces
• Portable battery-operated equipment utilizing low-voltage operation
• Embedded systems needing compact SSOP packaging solutions
• Communication modules requiring high ESD immunity for harsh environments

Procurement Notes

Verify the current lifecycle status before procurement as this component may be discontinued or subject to limited availability. Confirm that the SSOP-16 package matches your PCB footprint requirements. Ensure compatibility with existing design specifications regarding voltage levels and signal integrity. Check for moisture sensitivity classification if reflow soldering is required during assembly processes.

Selection Notes

Select this component when a single-channel RS-232 interface is sufficient for the application design. Consider the 15 kV ESD rating for environments prone to static discharge events. Evaluate the 1 Mb/s data rate against system throughput requirements. Verify that the 0°C to +70°C operating temperature range meets environmental constraints. Compare pinout compatibility with alternative transceivers if redesigning existing circuits.

Part Context

The CA3227E belongs to the ICL3227 series of RS-232 transceivers produced by Intersil. This series is designed for applications requiring reliable serial communication with minimal external components. The transition from Intersil to Renesas Electronics affects branding but not the underlying technical specifications. Similar parts in the family include variants with different driver/receiver counts or enhanced temperature ranges.

Replacement Considerations

Direct replacements include the ICL3227ECAZA and other ICL3227E series variants. Verify pin-to-pin compatibility and electrical parameter equivalence before substitution. Check for updated manufacturing sources under the Renesas Electronics brand. Ensure that any substitute maintains the same ESD protection levels and shutdown functionality.