ICL3222CP

Overview

The ICL3222CP is a dual transmitter and dual receiver RS-232 interface integrated circuit manufactured by Intersil. It operates from a single power supply ranging from 3 V to 5.5 V, supporting both 3.3 V and 5 V logic systems. The device provides full-duplex communication with data rates up to 120 kb/s. It features low supply current consumption of 300 µA in active mode and drops to less than 1 µA in shutdown mode. The component includes ESD protection rated at 15 kV according to the Human Body Model. It is housed in a 16-pin PDIP package and operates within a commercial temperature range of 0°C to +70°C.

Feature Summary

• Integrates two independent transmitters and receivers for full-duplex RS-232 communication on a single chip.
• Supports operation from a single 3 V to 5.5 V power supply without requiring external negative voltage generation.
• Includes built-in ESD protection capable of withstanding 15 kV human body model discharges.
• Features a dedicated shutdown control pin that reduces supply current to less than 1 µA for power saving.

Applications

• Industrial control systems requiring serial communication interfaces.
• Point-of-sale (POS) terminals and barcode scanners.
• Modem connections and portable instrumentation.
• Computer peripheral interfaces utilizing RS-232 standards.

Procurement Notes

Verify the specific suffix 'CP' indicates the plastic DIP package variant when sourcing. Confirm the manufacturer origin, as Intersil assets are now managed by Renesas Electronics. Check for RoHS compliance status depending on the production batch date. Ensure the component meets the required operating temperature range for your specific application environment before finalizing procurement.

Selection Notes

Select this component when a dual-channel RS-232 solution is needed with low power consumption. It is suitable for designs requiring ESD protection and single-supply operation. Consider the PDIP package for through-hole mounting requirements. Verify that the 120 kb/s data rate meets the system speed requirements compared to higher-speed alternatives in the series.

Part Context

The ICL3222 belongs to the broader ICL322x family of RS-232 transceivers designed for low-power applications. This series typically shares architectural similarities but varies in the number of drivers and receivers. The CP suffix specifically denotes the standard plastic dual in-line package format, distinguishing it from surface-mount variants like the CZ or CA suffixes found in other models.

Replacement Considerations

Direct replacements include the ICL3222CAZ or ICL3222CZA for surface-mount equivalents. Other compatible parts in the same family may offer different pin counts or speed ratings. Verify pin compatibility and electrical specifications before substituting with generic RS-232 transceivers from other manufacturers.