MAX220CPE - RS-232 Interface IC by Maxim Integrated

The MAX220CPE from Maxim Integrated is a highly-reliable, 5V-powered RS-232 transceiver IC, designed to meet the stringent requirements of EIA/TIA-232E and V.28/V.24 specifications, even at data rates up to 120kbps. This transceiver IC is particularly suitable for applications where ±12V is not available, as it features a dual charge pump that allows for RS-232 performance from a single 5V supply.

This integrated circuit comes in a 16-pin plastic DIP (Dual In-line Package) and is characterized by its low power consumption, making it an ideal choice for battery-powered devices, portable computing, and telecommunications equipment. The MAX220CPE features two drivers and two receivers, which offers the flexibility needed for a variety of communication tasks.

One of the key advantages of the MAX220CPE is its integrated electrostatic discharge (ESD) protection, which exceeds ±15kV using the Human Body Model, ensuring robust performance and longevity in harsh environments. Additionally, the device includes a shutdown mode that reduces power consumption to just a few microamps, further extending battery life in portable applications.

Other notable features include:

• Low Power Shutdown: The device enters a low power shutdown mode when not in use, significantly reducing power consumption.
• Flexible Data Rate: Supports data rates up to 120kbps, making it suitable for high-speed data communication.
• On-Chip Voltage Converters: The dual charge pump circuitry on-chip generates the ±10V needed for RS-232 output levels from a single 5V supply.
• High Receiver Input Impedance: The receivers can handle up to ±30V and have a typical input impedance of 5kΩ, allowing for multiple receivers to be connected in parallel.

The MAX220CPE is compatible with a wide variety of microcontrollers and is easy to integrate into existing designs, making it a go-to solution for engineers looking to implement RS-232 communications without the need for external power supplies or complex circuitry. With its combination of features, the MAX220CPE is an excellent choice for ensuring reliable data transmission in your electronic designs.