ICL3232EIV-20ZT

Overview

The ICL3232EIV-20ZT is a dual driver and dual receiver RS-232 transceiver manufactured by Renesas Electronics Corporation. It operates within a supply voltage range of 3.0 V to 5.5 V, supporting standard 3.3 V and 5 V logic systems. The device achieves data rates up to 250 kbps while maintaining compliance with EIA/TIA-232 and V.28/V.24 specifications. Key electrical characteristics include a typical operating supply current of 1 µA in shutdown mode and ±15 kV electrostatic discharge (ESD) protection on all lines. The component is housed in a TSSOP-20 surface-mount package and is rated for an industrial temperature range from -40°C to +85°C.

Feature Summary

• Integrated ±15 kV ESD protection on transmit and receive lines to enhance system robustness against electrostatic events.
• Ultra-low power consumption with a 1 µA shutdown mode current, facilitating battery-operated applications.
• Full compliance with EIA/TIA-232 and V.28/V.24 standards ensuring reliable serial communication at speeds up to 250 kbps.

Applications

• Industrial control systems requiring robust serial communication interfaces.
• Portable instrumentation and handheld devices utilizing low-voltage power supplies.
• Modems and telecommunications equipment needing high ESD tolerance.

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing this part number. Confirm that the 'E' designation aligns with the required extended industrial temperature range (-40°C to +85°C). Ensure compatibility with the target PCB footprint for the TSSOP-20 package. Cross-reference the manufacturer's latest datasheet for any pinout revisions or moisture sensitivity level updates prior to procurement.

Selection Notes

Select this component when a dual-channel RS-232 interface is required with integrated ESD protection. It is suitable for designs where low standby power is critical due to the 1 µA shutdown current. Compare against the ICL3232EIV-20Z if tube packaging is preferred over tape-and-reel. Consider alternative packages like SSOP-16 if board space constraints differ from the TSSOP-20 dimensions.

Part Context

This part belongs to the ICL3232 family of RS-232 transceivers, which are designed for low-power, single-supply operation. The family includes variants with different package options such as TSSOP-16 and SSOP-16. The 'E' suffix typically denotes the extended temperature grade, distinguishing it from commercial grade parts. This series is widely used in legacy serial port implementations and modern embedded systems requiring reliable UART connectivity.

Replacement Considerations

The ICL3232EIV-20Z is a direct functional equivalent but may come in tube packaging instead of tape-and-reel. Other family members like the ICL3232EIV-16Z offer similar electrical performance but utilize a 16-pin TSSOP package, requiring schematic and layout adjustments. Verify pin-to-pin compatibility before substituting with non-Renesas alternatives.