SN75ALS193NG4 Equivalent & Substitute Parts

Part Overview

The SN75ALS193NG4 is a 0/4 Receiver IC for RS422 and RS423 protocols, manufactured by Texas Instruments in a 16-DIP through-hole package. This part is discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing production and maintenance applications. The receiver features 120 mV hysteresis and operates within a 4.75V to 5.25V supply voltage range, suitable for industrial and commercial serial communication systems.

Substiute Parts

SN75ALS193NG4

Texas InstrumentsIn Stock: 883SN75ALS193NG4 Datasheet

Current PartRFQ

SN75ALS193N

Texas InstrumentsIn Stock: 9892SN75ALS193N Datasheet

MFR RecommendedRFQ

SN75ALS195N

Texas InstrumentsIn Stock: 2065SN75ALS195N Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SN75ALS193NG4 is determined by strict equivalence across the following critical parameters:

• Protocol compatibility: RS422 and RS423
• Receiver configuration: 0/4 (4 receivers, 0 drivers)
• Receiver hysteresis: 120 mV
• Supply voltage range: 4.75V ~ 5.25V
• Operating temperature range: 0°C ~ 70°C
• Physical package: 16-DIP (0.300", 7.62mm)
• Electrical classification: ROHS3 Compliant, REACH Unaffected

Two substitute parts meet these criteria: SN75ALS193N (manufacturer recommended, active status) and SN75ALS195N (parametric equivalent, obsolete status).

Parameter Comparison

Engineering Selection Recommendations

SN75ALS193N is the primary substitute for SN75ALS193NG4. This part carries active product status with 9,828 units in stock, ensuring long-term availability. It maintains identical electrical specifications and physical packaging, with ROHS3 compliance and REACH unaffected status matching the original part. The only difference is packaging format (Tube versus the original specification), which does not affect functional compatibility.

SN75ALS195N is a parametric equivalent substitute with identical electrical and physical characteristics. However, this part carries obsolete product status with limited inventory (2,018 units), making it a secondary option suitable only when SN75ALS193N is unavailable. Selection of SN75ALS195N should be reserved for legacy system maintenance where supply continuity is not a primary concern.

Frequently Asked Questions (FAQ)

Q: Can SN75ALS193N directly replace SN75ALS193NG4 in existing designs?

A: Yes. Both parts share identical electrical specifications, receiver configuration, hysteresis characteristics, supply voltage range, operating temperature range, and 16-DIP package dimensions. Direct pin-for-pin substitution is supported.

Q: What is the difference between SN75ALS193NG4 and SN75ALS193N?

A: The parts are electrically and functionally identical. The primary difference is packaging format: SN75ALS193NG4 uses standard packaging while SN75ALS193N is supplied in Tube packaging. Both are 16-PDIP devices with identical pinouts and performance characteristics.

Q: Why is SN75ALS195N listed as a substitute if it is obsolete?

A: SN75ALS195N meets all parametric substitution criteria, including protocol, receiver configuration, hysteresis, voltage range, temperature range, and package specifications. However, its obsolete status limits practical availability. It should be considered only when SN75ALS193N cannot be sourced.

Q: Are there any compliance or certification differences between the three parts?

A: No. All three parts carry ROHS3 compliance and REACH unaffected status, ensuring equivalent regulatory compliance for industrial and commercial applications.

Q: What is the significance of the 16-DIP package specification?

A: The 16-DIP (0.300", 7.62mm) package is a through-hole component format. All three parts use this identical package, ensuring mechanical and electrical compatibility in PCB designs without layout modifications.