The MAX232CBE is a dual RS-232 driver/receiver manufactured by Intersil (now Renesas). It is designed to convert TTL/CMOS logic levels to RS-232 voltage levels, enabling communication between microcontrollers or other digital devices and RS-232 serial ports. This device incorporates charge pump capacitors to generate the necessary ±10V voltages from a single +5V supply. Its robust design and widespread availability make it a popular choice for serial communication applications.

Applications

• RS-232 serial communication
• Microcontroller interfaces
• Data acquisition systems
• Point-of-sale (POS) terminals
• Industrial control systems

Features

• Dual RS-232 driver/receiver
• Single +5V supply operation
• Built-in charge pump capacitors
• Meets or exceeds EIA/TIA-232 standards
• High data rate capability

Benefits

• Simplifies communication between digital devices and RS-232 ports.
• Eliminates the need for multiple power supplies.
• Reduces external component count.
• Ensures reliable communication over RS-232 links.
• Supports high-speed data transmission.

Additional Details

The MAX232CBE typically operates with a supply voltage of +5V ±10%. It provides two independent RS-232 driver/receiver channels. The data rate is typically limited to 200 kbps. The charge pump capacitors require external ceramic capacitors, usually with a value of 1 μF. The device comes in a variety of packages, including DIP (Dual In-Line Package) and SOIC (Small Outline Integrated Circuit). The operating temperature range is typically 0°C to 70°C. The device is designed to protect against electrostatic discharge (ESD) events. Renesas (formerly Intersil) is a reputable manufacturer known for producing reliable and high-performance analog and mixed-signal ICs.