ICL3238EIVZ

ICL3238EIVZ is a dual RS-232 transceiver IC from Intersil (now Renesas) in the ICL323x family. It provides two RS-232 drivers and two receivers, allowing a microcontroller or UART to communicate with RS-232 devices (PC COM ports, modems, etc.). The device operates from a single supply (typically 3.0–5.5 V) and uses an internal charge-pump to generate the required RS-232 voltage levels from the logic supply. TTL/CMOS logic on the transmitter inputs is converted to RS-232 levels on the outputs, and RS-232 inputs are converted back to TTL/CMOS on the receiver outputs. It is designed for low power, compact packaging, and standard UART-speed communication. The IVZ suffix indicates a specific package/revision; check the datasheet for exact pinout, capacitor requirements (external charge-pump caps), electrical specs, and operating conditions. Common applications include microcontroller serial interfaces, embedded systems, and any UART-to-RS-232 bridge.

Equivalent products (4-channel RS-232 transceivers): Maxim MAX3241/MAX3243; TI SP3232E/SP3234E; Analog Devices ADM3232; STMicroelectronics ST232/ST3232. These are functionally interchangeable with ICL3238EIVZ given similar supply voltage and data rates. Verify pinout/package and Vcc requirements (voltage levels, capacitor needs) for your design.

ICL3238EIVZ is a dual RS-232 transceiver. Key features:
- Dual channel: two drivers and two receivers (EIA-232 level translators)
- Supply voltage: 3.0 V to 5.5 V (works with 3.3V or 5V systems)
- TTL/CMOS compatible inputs; RS-232 level outputs
- RS-232 compliant voltage swings (typical ±6V to ±7V)
- Industrial temperature range (-40°C to +85°C)
- 16-pin package (EIVZ variant)
- Low power consumption
- ESD protection on signal pins
Note: For exact electrical specs (data rate, standby modes, exact pinout), consult the official datasheet.

- Pin count: 16 pins (DIP-16/SO-16 package).
- Function: Dual RS-232 transceiver (two drivers and two receivers). Converts TTL/CMOS level signals to RS-232 voltage levels and back; uses an internal charge pump with external capacitors to generate the RS-232 voltages.

Manufacturer: Intersil (now part of Renesas Electronics).
About the company: A global semiconductor company that designs and manufactures analog, mixed-signal, and power-management integrated circuits.

ICL3238EIVZ is a dual RS-232 line driver/receiver with an integrated charge pump. Typical application areas:
- Embedded systems and microcontroller projects needing RS-232 interfaces
- Computer peripherals (printers, modems, diagnostic ports)
- Industrial automation and instrumentation
- Data acquisition and telemetry systems
- Point-of-sale terminals and payment devices
- Test, measurement, and lab equipment
- Networking equipment with serial console ports
- Consumer electronics requiring serial maintenance/debug ports
These uses involve converting TTL/CMOS logic levels to RS-232 signal levels for reliable serial communication.

The ICL3238EIVZ comes in an 8-pin surface-mount package (SOIC‑8).