MAX232N RS-232 Transceiver, 5V, 16-Pin PDIP

The MAX232N from Texas Instruments is a robust dual driver/receiver integrated circuit, engineered to facilitate TIA/EIA-232-F (commonly known as RS-232) serial communication from a single 5V power supply. This versatile component includes an internal capacitive voltage generator, eliminating the need for external high-voltage power supplies. Each of its two receivers adeptly converts RS-232 signal inputs into standard 5V TTL/CMOS logic levels, featuring a typical threshold of 1.3V and 0.5V of hysteresis for improved noise immunity, and can safely accept inputs of up to ±30V.

Conversely, the two drivers convert TTL/CMOS logic signals back into compliant RS-232 output levels. This makes the MAX232N an essential interface solution for modernising or connecting legacy serial equipment. It is designed to meet or exceed the stringent requirements of the TIA/EIA-232-F and ITU V.28 standards, ensuring reliable data transmission in a variety of demanding environments.

Key Features & Performance

• Operates from a single 5V supply with integrated 1µF charge-pump capacitors.
• Supports data rates of up to 120 kbit/s, suitable for a wide range of serial communication protocols.
• Offers robust ESD protection that exceeds JESD 22 specifications, safeguarding the IC from electrostatic discharge.
• Features a low typical supply current of 8mA, making it suitable for power-sensitive and battery-powered applications.
• The 16-pin Plastic Dual In-line Package (PDIP) is widely supported and easy to prototype with or integrate into through-hole PCB designs.
• A broad operating temperature range from -40°C to 85°C ensures reliable performance in industrial, commercial, and extended temperature scenarios.

Typical Applications

This transceiver is ideally suited for bridging the gap between modern logic circuits and classic serial interfaces. Common uses include legacy computer systems,