DS26LS32ACN/NOPB Equivalent & Substitute Parts

Part Overview

The DS26LS32ACN/NOPB is a 0/4 Receiver IC for RS422 and RS423 protocols, manufactured by Texas Instruments in a 16-DIP package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs. Substitute parts must maintain compatibility across electrical specifications, package form factor, and protocol support to ensure functional equivalence in RS422/RS423 receiver applications.

Substiute Parts

DS26LS32ACN/NOPB

Texas InstrumentsIn Stock: 919DS26LS32ACN/NOPB Datasheet

Current PartRFQ

AM26C32CN

Texas InstrumentsIn Stock: 4368AM26C32CN Datasheet

MFR RecommendedRFQ

AM26LS32ACN

Texas InstrumentsIn Stock: 5251AM26LS32ACN Datasheet

DirectRFQ

AM26LS33ACN

Texas InstrumentsIn Stock: 3552AM26LS33ACN Datasheet

DirectRFQ

AM26LS32AIN

Texas InstrumentsIn Stock: 973AM26LS32AIN Datasheet

UpgradeRFQ

SN75ALS193N

Texas InstrumentsIn Stock: 9892SN75ALS193N Datasheet

MFR RecommendedRFQ

SN75ALS197N

Texas InstrumentsIn Stock: 1194SN75ALS197N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the DS26LS32ACN/NOPB is determined by the following critical parameters:

• Protocol Compatibility: RS422/RS423 support
• Receiver Configuration: 0/4 (4 receivers, no drivers)
• Package Form Factor: 16-DIP (0.300", 7.62mm)
• Mounting Type: Through Hole
• Supply Voltage Range: Overlap with 4.5V ~ 5.5V
• Operating Temperature Range: Minimum 0°C ~ 70°C support
• Receiver Hysteresis: Functional tolerance within 50 mV ~ 120 mV range
• RoHS Compliance: ROHS3 Compliant

Substitute parts are grouped into three categories based on their relationship to the main part: MFR Recommended (manufacturer-endorsed alternatives), Direct (functionally equivalent active or recent-status parts), and Upgrade (enhanced specifications for extended operating conditions).

Parameter Comparison

Engineering Selection Recommendations

AM26LS32ACN is the primary direct substitute. It maintains RS422/RS423 protocol support, identical 0/4 receiver configuration, and 16-DIP package compatibility. With active product status and ROHS3 compliance, this part provides the most straightforward replacement path for the obsolete DS26LS32ACN/NOPB.

SN75ALS193N serves as a manufacturer-recommended alternative with active product status. It meets all package and electrical requirements, though receiver hysteresis is specified at 120 mV compared to the original 100 mV. ROHS3 compliance and active availability support long-term supply continuity.

AM26C32CN is a manufacturer-recommended option with obsolete status. It provides full protocol and package compatibility with 60 mV receiver hysteresis. Supply availability is higher than the original part, supporting immediate replacement needs.

AM26LS32AIN functions as an upgrade option with extended operating temperature range (-40°C ~ 85°C) compared to the standard 0°C ~ 70°C. This part is suitable for applications requiring wider temperature performance, though it carries obsolete status.

AM26LS33ACN and SN75ALS197N are available as alternatives but lack explicit RS422/RS423 protocol specification in their documentation, introducing uncertainty in protocol-specific applications.

Frequently Asked Questions (FAQ)

Q: Can AM26LS32ACN directly replace DS26LS32ACN/NOPB?

A: Yes. Both parts share identical receiver configuration (0/4), protocol support (RS422/RS423), package form factor (16-DIP), and operating temperature range (0°C ~ 70°C). The primary difference is receiver hysteresis: AM26LS32ACN specifies 50 mV versus the original 100 mV. This lower hysteresis value does not prevent functional substitution in standard RS422/RS423 applications.

Q: What is the difference between receiver hysteresis values?

A: Receiver hysteresis determines the voltage differential between the rising and falling threshold levels. Lower hysteresis (50 mV) provides tighter threshold control, while higher hysteresis (100 mV, 120 mV) offers greater noise immunity. All specified values fall within acceptable ranges for RS422/RS423 receiver operation.

Q: Is SN75ALS193N compatible with the original part?

A: Yes, with noted differences. SN75ALS193N maintains 0/4 receiver configuration, RS422/RS423 protocol support, 16-DIP package, and 0°C ~ 70°C operating temperature. Receiver hysteresis is 120 mV. Active product status ensures ongoing availability. The part is suitable for direct substitution in standard applications.

Q: Why do some substitute parts lack protocol specification?

A: AM26LS33ACN and SN75ALS197N do not explicitly list RS422/RS423 protocol in their provided documentation. While they maintain identical receiver configuration and package form factor, the absence of explicit protocol specification introduces uncertainty for protocol-dependent applications. Parts with confirmed RS422/RS423 support are preferred for critical applications.

Q: What is the advantage of AM26LS32AIN?

A: AM26LS32AIN extends the operating temperature range to -40°C ~ 85°C, compared to the standard 0°C ~ 70°C. This upgrade option is suitable for applications requiring operation in extreme temperature environments. However, it carries obsolete product status, which may affect long-term availability.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance, matching the environmental and regulatory status of the original DS26LS32ACN/NOPB.

Q: What supply voltage considerations apply to substitution?

A: The original part specifies 4.5V ~ 5.5V supply range. Most substitute parts specify 4.75V ~ 5.25V, a narrower range. Systems operating at the extremes of the original range (below 4.75V or above 5.25V) require AM26C32CN or confirmation of actual operating voltage before substitution.