ICL3217ECAZ

Overview

The ICL3217ECAZ is an RS-232 transceiver manufactured by Renesas Electronics, operating within a supply voltage range of 3.0 V to 5.5 V. It supports data rates up to 250 kb/s and features one driver and three receivers in full duplex mode. The device provides ±15 kV ESD protection on RS-232 pins and includes an automatic powerdown function that reduces standby current to 1 µA. It is housed in a 24-pin SSOP package and operates between -40 °C and +85 °C.

Feature Summary

• Automatic powerdown circuitry reduces standby current to 1 µA when no valid RS-232 signal is detected
• Integrated charge pumps enable operation with small external capacitors for board space savings
• Provides ±15 kV ESD protection on RS-232 I/O pins per IEC61000-4-2 standards

Applications

• ISDN Terminal Adaptors
• Portable computers including PDAs and Palmtops
• Notebook and laptop computer peripherals

Procurement Notes

Verify the specific suffix 'CAZ' against official Renesas documentation to confirm packaging type and RoHS compliance status. Confirm end-of-life or obsolescence status prior to procurement as this component family may be discontinued. Ensure supply chain restrictions are checked before ordering.

Selection Notes

Select this component for low-power RS-232 applications requiring single-supply operation from 3.3 V or 5 V systems. The automatic powerdown feature makes it suitable for battery-powered portable devices where minimizing standby consumption is critical. Verify pin compatibility if replacing legacy MAX207E or HIN207E designs.

Part Context

The ICL3217ECAZ belongs to the ICL32X7E series of low-power RS-232 transceivers designed for 3V to 5.5V operation. This series targets mobile and portable electronics where power efficiency and compact footprint are essential design constraints.

Replacement Considerations

Publicly confirmed substitutes include MAX207E, HIN207E, and HIN237E. Verify pinout and electrical specifications match before substitution.