MAX235CPG+

Overview

The MAX235CPG+ is a dual RS-232 transceiver from the MAX220–MAX249 family, designed for EIA/TIA-232E and V.28/V.24 interfaces. It operates on a single +5V supply using integrated charge-pump circuitry to generate internal ±10V rails, eliminating the need for external bipolar supplies. The device features two drivers and two receivers with built-in capacitors, supporting data rates up to 30kbps. It includes a shutdown mode that reduces power consumption to 5μW. The component is housed in a 16-pin Plastic DIP package and supports an operating temperature range of 0°C to +70°C.

Feature Summary

• Integrated charge-pump circuitry enables single-supply operation without external bipolar voltage sources
• Built-in capacitors eliminate the need for external components, reducing printed circuit board space requirements
• Shutdown mode significantly reduces power consumption for low-power applications

Applications

• Interface translation between TTL/CMOS logic and RS-232 standards
• Multidrop RS-232 communication networks
• Portable diagnostics equipment requiring compact interface solutions

Procurement Notes

Verify the specific suffix 'PG' against manufacturer documentation to confirm the 16-pin Plastic DIP package configuration. Ensure the ordering code matches the required commercial temperature range of 0°C to +70°C. Cross-reference the part number with official distributor catalogs to confirm current availability status and lead times before finalizing procurement plans.

Selection Notes

Select this component when designing systems constrained by PCB area due to its integrated capacitor design. It is suitable for applications requiring only two channels of RS-232 communication. Verify that the system operates within the specified +5V supply tolerance and does not require the extended temperature ranges available in other variants of the MAX220-MAX249 family.

Part Context

This device belongs to the MAX220–MAX249 family of +5V-powered multichannel RS-232 drivers and receivers. The family offers various channel configurations and package options to accommodate different interface density requirements. The MAX235 specifically provides a dual-driver, dual-receiver solution optimized for cost-sensitive and space-constrained designs.

Replacement Considerations

Compatible substitutes include other members of the MAX220–MAX249 family such as the MAX232 or MAX233, provided they match the required channel count and package type. Verify pin compatibility and electrical specifications before substitution.