DS26LS32CM

Overview

The DS26LS32CM is a quad differential line receiver manufactured by National Semiconductor, now part of Texas Instruments. It complies with EIA-422-B and TIA-422-B standards for RS-422 communication interfaces. The device integrates four independent receivers within a single package, designed for high-speed data transmission up to 10 Mb/s. It operates on a single 5 V power supply with a maximum voltage of 5.25 V and a minimum of 4.75 V. The component features low power consumption and is housed in a standard plastic DIP-16 package, suitable for surface mount or through-hole applications depending on the specific variant suffix.

Feature Summary

• Integrates four independent differential receivers for multi-channel serial communication
• Complies with EIA-422-B and TIA-422-B interface standards
• Supports data rates up to 10 Mb/s for high-speed signal integrity
• Operates reliably on a standard 5 V single power supply

Applications

• RS-422 compliant serial communication systems
• Industrial control networks requiring differential signaling
• Multi-drop bus architectures in automation equipment
• Data acquisition systems utilizing long-distance transmission

Procurement Notes

Verify the manufacturer origin carefully, as National Semiconductor was acquired by Texas Instruments. Ensure the specific orderable part number matches current TI distribution channels. Confirm RoHS compliance status and lead times directly with authorized distributors, as legacy components may have limited availability or require alternative sourcing strategies from surplus suppliers.

Selection Notes

Select this component when designing RS-422 interfaces requiring four simultaneous receiver channels. Compare against the AM26LS32 series for potential pin-compatible upgrades or newer manufacturing runs. Consider the operating temperature range and package type requirements relative to the target PCB layout. Verify that the input sensitivity and noise immunity specifications meet the specific environmental conditions of the application.

Part Context

This component belongs to the DS26LS32 family of quad differential line receivers. It shares functional similarities with the AM26LS32 and DS26LS32AC variants. These devices are commonly used in legacy and modern industrial electronics where robust differential signaling is required over twisted pair cables. The CM suffix typically denotes a commercial grade plastic DIP package.

Replacement Considerations

The AM26LS32CN and AM26LS32CDR are direct functional equivalents from Texas Instruments. The DS26LS32AC offers similar performance with potentially updated manufacturing processes. Verify pinout compatibility before substitution to ensure seamless integration into existing circuit designs without hardware modifications.