MAX222CPN

Drivers, Receivers, Transceivers Overview

The MAX222CPN is a fully compliant RS-232 transceiver from the MAX220–MAX249 family, manufactured by Analog Devices Inc./Maxim Integrated. It provides two drivers and two receivers in an 18-pin Plastic DIP package. The device operates on a single +5V supply (4.5V to 5.5V) utilizing internal charge pumps to generate ±10V for RS-232 signaling. Key electrical parameters include a data rate of 200kbps, receiver hysteresis of 0.3V, and input voltage protection up to ±25V. It supports TTL/CMOS logic levels and features a shutdown mode with typical current consumption of 10µA at +25°C.

Drivers, Receivers, Transceivers Feature Summary

• Integrated dual charge-pump circuitry eliminates the need for external bipolar power supplies or additional components.
• Enables single-supply operation using only a +5V source while generating required RS-232 voltage swings.
• Includes a low-power shutdown mode that significantly reduces supply current consumption.

Drivers, Receivers, Transceivers Applications

• Interface translation between TTL/CMOS logic and RS-232 serial ports
• Multidrop RS-232 network communications
• Portable diagnostics equipment requiring battery-powered serial connectivity

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'C' indicates the commercial temperature range (0°C to +70°C) and 'P' denotes the plastic DIP package. Confirm the manufacturer designation as Analog Devices Inc./Maxim Integrated. Ensure the component matches the 18-pin configuration specified for the MAX222 variant within the datasheet ordering information.

Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems limited to a single +5V supply rail where space constraints prohibit external voltage inverters. It is suitable for applications requiring moderate data rates up to 200kbps. Consider the 18-pin DIP form factor if through-hole mounting is required for prototyping or specific mechanical integration needs.

Drivers, Receivers, Transceivers Part Context

This part belongs to the MAX220–MAX249 family of +5V-powered multichannel RS-232 drivers and receivers. The family offers various channel counts and packages. The MAX222 specifically provides a 2/2 driver/receiver configuration, distinguishing it from higher-channel variants like the MAX232 (4/4) or lower-channel options.

Drivers, Receivers, Transceivers Replacement Considerations

Direct pin-compatible alternatives within the same family include the MAX222ACN (extended temperature) or MAX222EPE (industrial temperature). Verify that any replacement maintains the 18-pin PDIP footprint and single-supply charge pump architecture.