DS26LS32CN Equivalent & Substitute Parts

Part Overview

The DS26LS32CN is a 0/4 Receiver IC for RS422 and RS423 protocols, manufactured by Texas Instruments in a 16-DIP through-hole package. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production support. The DS26LS32CN remains available in inventory (3515 pcs), but active alternatives should be evaluated for long-term component sourcing strategy.

Substiute Parts

DS26LS32CN

Texas InstrumentsIn Stock: 3597DS26LS32CN Datasheet

Current PartRFQ

SN75ALS193N

Texas InstrumentsIn Stock: 9892SN75ALS193N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DS26LS32CN is determined by the following critical parameters:

• Protocol Compatibility: Both main and substitute parts must support RS422 and RS423 protocols
• Receiver Configuration: 0/4 receiver architecture must be maintained
• Package Compatibility: 16-DIP (0.300", 7.62mm) through-hole mounting is required for direct PCB replacement
• Electrical Specifications: Supply voltage range, receiver hysteresis, and operating temperature must be within acceptable tolerances for the application
• Pin Configuration: 16-PDIP supplier device package ensures mechanical and electrical pin compatibility

The SN75ALS193N meets all substitution criteria as a manufacturer-recommended equivalent from Texas Instruments, maintaining identical protocol support, receiver count, and package form factor while offering active product status and improved compliance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The SN75ALS193N is the manufacturer-recommended substitute for the DS26LS32CN. Selection between these parts should be based on the following factors:

DS26LS32CN remains suitable for:

• Existing inventory applications where component availability is confirmed
• Legacy system maintenance where design changes are not feasible
• Applications with no regulatory compliance requirements

SN75ALS193N is recommended for:

• New designs requiring active product status and long-term availability
• Applications subject to ROHS3 compliance requirements
• Systems requiring modern supply chain support and manufacturer backing

Both parts maintain identical protocol support (RS422/RS423), receiver configuration (0/4), and physical package form factor (16-DIP), ensuring direct functional and mechanical compatibility. The supply voltage range difference (DS26LS32CN: 4.5V–5.5V vs. SN75ALS193N: 4.75V–5.25V) and receiver hysteresis variation (100 mV vs. 120 mV) must be evaluated against specific application requirements.

Frequently Asked Questions (FAQ)

Q: Can the SN75ALS193N directly replace the DS26LS32CN on existing PCBs?

A: Yes. Both parts use identical 16-DIP (0.300", 7.62mm) through-hole packaging with 16-PDIP pin configuration, enabling direct PCB replacement without layout modifications.

Q: What is the primary reason for substitution?

A: The DS26LS32CN is classified as obsolete. The SN75ALS193N provides active product status, ensuring ongoing manufacturer support and supply chain availability.

Q: Are there electrical differences between these parts?

A: Yes. The SN75ALS193N has a narrower supply voltage range (4.75V–5.25V vs. 4.5V–5.5V) and higher receiver hysteresis (120 mV vs. 100 mV). Applications must confirm compatibility with these specifications.

Q: What compliance advantages does the SN75ALS193N offer?

A: The SN75ALS193N is ROHS3 compliant, whereas the DS26LS32CN is RoHS non-compliant. Both maintain REACH Unaffected and EAR99 ECCN classifications.

Q: Are both parts suitable for new designs?

A: The SN75ALS193N is recommended for new designs due to active product status and modern compliance certifications. The DS26LS32CN should be reserved for legacy system support only.

Q: Do both parts support the same protocols?

A: Yes. Both the DS26LS32CN and SN75ALS193N support RS422 and RS423 protocols with identical 0/4 receiver configuration.