Analog Devices Inc./Maxim Integrated

MAX203ECWP  

Drivers, Receivers, Transceivers

MAX203ECWP Description

The MAX203ECWP is a full-duplex RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated, designed for reliable serial communication in industrial and embedded systems. Housed in a 20-pin SOIC package, this surface-mount IC operates within a 4.75V to 5.25V supply range and supports data rates up to 120Kbps. With 2 drivers and 2 receivers, it ensures robust signal transmission and reception, making it suitable for legacy and modern RS-232 applications. The device features 500mV receiver hysteresis, enhancing noise immunity in electrically noisy environments. Although marked as obsolete, it remains a viable choice for maintenance or specific design requirements due to its proven performance.

MAX203ECWP Features

• Full-duplex operation: Enables simultaneous transmission and reception for efficient bidirectional communication.
• High noise immunity: 500mV receiver hysteresis minimizes errors in noisy industrial environments.
• Wide operating voltage (4.75V–5.25V): Ensures stable performance across typical 5V systems.
• Surface-mount (SOIC-20) packaging: Compact and suitable for space-constrained PCB designs.
• Compliance with RS-232 standards: Guarantees compatibility with legacy serial interfaces.
• Moisture Sensitivity Level (MSL) 1: Suitable for unlimited floor life in typical storage conditions.

MAX203ECWP Applications

• Industrial automation: Reliable communication in PLCs, motor controllers, and sensor interfaces.
• Embedded systems: Legacy device interfacing in medical equipment, test instruments, and point-of-sale terminals.
• Telecommunications: Modem and terminal connections requiring robust signal integrity.
• Retrofit and repair: Ideal for maintaining or upgrading older RS-232-based systems.

Conclusion of MAX203ECWP

The MAX203ECWP offers a dependable RS-232 transceiver solution with full-duplex capability, noise resilience, and broad compatibility. While obsolete, its proven design makes it a pragmatic choice for industrial, embedded, and legacy applications where reliability is paramount. Engineers seeking a cost-effective, high-performance transceiver for 5V systems will find this IC well-suited for demanding environments.

MAX203ECWP Documents

Download datasheets and manufacturer documentation for MAX203ECWP

Datasheets :

MAX202E-MAX241E Datasheet      

Part Numbering Guide :

Part Numbering System      

Application Notes :

Determining Clock Accuracy Requirements for UART Communications      

PCN Obsolescence/ EOL :

EOL 15/Jan/2016      

Environmental Information :

Maxim Integrated RoHS Cert       Maxim Integrated REACH