MAX241CWI+T

Overview

The MAX241CWI+T is a +5V-powered, multichannel RS-232 transceiver featuring four drivers and five receivers. It operates within a supply voltage range of 4.5V to 5.5V and supports data rates up to 120kbps. The device utilizes an internal charge pump to generate the required ±10V levels from a single +5V source, eliminating the need for external bipolar supplies. It includes a shutdown mode that reduces power consumption significantly. The component is housed in a 28-pin Wide SOIC package and is rated for operation across a temperature range of 0°C to +70°C.

Feature Summary

• Integrates dual charge-pump circuitry to convert a single +5V supply into the necessary positive and negative voltages for RS-232 signaling.
• Provides full duplex communication capability with multiple independent driver and receiver channels.
• Includes a dedicated shutdown control input to minimize current draw during periods of inactivity.

Applications

• Interface translation between TTL/CMOS logic and RS-232 serial ports
• Multidrop RS-232 network connections
• Portable diagnostic equipment requiring low-power serial communication

Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm the tape-and-reel packaging configuration. Ensure the component meets RoHS compliance requirements for your assembly process. Cross-reference the manufacturer part number with authorized distributor databases to confirm current availability status and lead times before finalizing procurement plans.

Selection Notes

Select this component when designing systems that require multiple RS-232 channels without the complexity of generating external high-voltage rails. It is suitable for applications where board space is limited due to the integrated charge pump design. Consider the 120kbps data rate limit and the 0°C to +70°C operating temperature range to ensure compatibility with the target environment.

Part Context

This device belongs to the MAX220–MAX249 family of line drivers and receivers designed for EIA/TIA-232E and V.28/V.24 interfaces. The family offers various configurations of drivers and receivers in different packages. The MAX241 specifically provides a 4-driver and 5-receiver configuration, making it distinct from other members like the MAX232 which typically offer fewer channels.

Replacement Considerations

Direct replacements include other members of the MAX220-MAX249 family such as the MAX241CWI or MAX241EEAI depending on the required temperature range and package type. Verify pinout compatibility and channel counts when substituting with similar RS-232 transceivers from Analog Devices or Maxim Integrated.