MAX232CPE

Overview

The MAX232CPE is a +5V-powered, multichannel RS-232 driver and receiver intended for EIA/TIA-232E and V.28/V.24 communications interfaces. It operates within a supply voltage range of 4.5V to 5.5V with a typical operating current of 10mA. The device features two drivers and two receivers supporting full-duplex communication at data rates up to 200kbps. Propagation delays are specified as 3.5µs (typical) for transmitters and 1µs (typical) for receivers. It functions in commercial temperatures from 0°C to +70°C and utilizes a 16-pin PDIP package.

Feature Summary

• Integrated charge pump circuitry eliminates the need for external bipolar ±12V supplies, enabling single +5V operation.
• Provides interface translation between TTL/CMOS logic levels and standard RS-232 signal voltages.
• Supports full-duplex data transmission and reception for bidirectional serial communication.

Applications

• Interface translation for microcontroller-based systems
• Multidrop RS-232 network connections
• Portable diagnostic equipment

Procurement Notes

Verify that the component matches the specific 'C' suffix designation for the commercial temperature range of 0°C to +70°C. Confirm the package type corresponds to the 16-pin plastic DIP format. Ensure the ordering information aligns with the manufacturer's current production status and lead times before finalizing procurement plans.

Selection Notes

Select this component when designing systems requiring RS-232 connectivity powered exclusively by a single +5V rail. It is suitable for applications where board space is limited but external capacitors for the charge pump are acceptable. Consider alternative models like the MAX232A or MAX233 if integrated internal capacitors or specific shutdown control features are required.

Part Context

This part belongs to the MAX220–MAX249 family of line drivers and receivers manufactured by Analog Devices Inc./Maxim Integrated. The family provides various channel configurations and packaging options to accommodate different PCB layout constraints and interface requirements for serial communication standards.

Replacement Considerations

The MAX232A is a direct functional replacement within the same series. Verify that any substitute maintains the 16-pin PDIP footprint and supports the required 200kbps data rate without altering the system's power supply architecture.