MAX3291CSD+ Equivalent & Substitute Parts

Part Overview

The MAX3291CSD+ is a full-duplex RS422/RS485 transceiver interface IC manufactured by Analog Devices Inc./Maxim Integrated. This single driver/receiver configuration operates at 10 Mbps data rate with 35 mV receiver hysteresis, housed in a 14-SOIC surface mount package. The component is classified as Active product status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Substitute parts are identified when electrical parameters, mechanical packaging, and compliance certifications remain identical across the product line, enabling direct replacement in circuit designs without functional degradation.

Substiute Parts

MAX3291CSD+

Analog Devices Inc./Maxim IntegratedIn Stock: 1190MAX3291CSD+ Datasheet

Current PartRFQ

MAX3291CSD+

Analog Devices Inc./Maxim IntegratedIn Stock: 1190MAX3291CSD+ Datasheet

Parametric EquivalentRFQ

MAX3292CSD+

Analog Devices Inc./Maxim IntegratedIn Stock: 2179MAX3292CSD+ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX3291CSD+ is determined by strict equivalence across the following critical parameters:

• Protocol support: RS422 and RS485 full-duplex operation
• Driver/Receiver configuration: 1/1 topology
• Data rate: 10 Mbps maximum
• Receiver hysteresis: 35 mV
• Supply voltage range: 4.75V ~ 5.25V
• Operating temperature range: 0°C ~ 70°C
• Package type: 14-SOIC surface mount with 3.90mm width
• Compliance certifications: ROHS3, MSL 1, REACH Unaffected status

The MAX3292CSD+ meets all electrical and mechanical parameters identical to the MAX3291CSD+, establishing it as a parametric equivalent. Both parts share the same base functionality, package footprint, and compliance profile, enabling direct substitution in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Both the MAX3291CSD+ and MAX3292CSD+ maintain Active product status with identical compliance certifications (ROHS3, MSL 1, REACH Unaffected). Selection between these parts is based on inventory availability and supply chain considerations rather than functional or electrical differences. The MAX3292CSD+ currently maintains higher inventory levels (2100 pcs vs. 1145 pcs), which may influence procurement decisions for high-volume applications. Both parts are suitable for direct substitution in RS422/RS485 interface applications requiring full-duplex communication at 10 Mbps data rates within the specified supply voltage and temperature operating ranges.

Frequently Asked Questions (FAQ)

Q: Can MAX3292CSD+ replace MAX3291CSD+ in existing designs? A: Yes. Both parts are parametric equivalents with identical electrical specifications, package footprint, and compliance certifications. Direct substitution is supported without circuit modification.

Q: Are there differences in pin configuration between these parts? A: No. Both parts use the 14-SOIC package with identical 3.90mm width and surface mount configuration. Pin assignments and functionality are equivalent.

Q: What determines substitution eligibility for these transceiver ICs? A: Substitution is based on protocol support (RS422/RS485), driver/receiver configuration (1/1), data rate (10 Mbps), receiver hysteresis (35 mV), supply voltage range (4.75V ~ 5.25V), operating temperature range (0°C ~ 70°C), package type (14-SOIC), and compliance certifications (ROHS3, MSL 1).

Q: Are both parts suitable for new designs? A: Yes. Both MAX3291CSD+ and MAX3292CSD+ maintain Active product status and are appropriate for new circuit development.

Q: What is the difference between these two part numbers? A: The parts are functionally and electrically identical. Differences exist only in base product number designation (MAX3291 vs. MAX3292) and current inventory levels.