MAX3185EWP Equivalent & Substitute Parts

Part Overview

The MAX3185EWP is a 3/5 Transceiver Full RS232 interface IC manufactured by Analog Devices Inc./Maxim Integrated in a 20-SOIC surface mount package. This part is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production support. The MAX3185EWP operates across a 4.5V to 5.5V supply range with a 230kbps data rate and 650mV receiver hysteresis, designed for full-duplex RS232 communication applications.

Substiute Parts

MAX3185EWP

Analog Devices Inc./Maxim IntegratedIn Stock: 1969MAX3185EWP Datasheet

Current PartRFQ

GD65232DW

Texas InstrumentsIn Stock: 1357GD65232DW Datasheet

MFR RecommendedRFQ

GD65232DWR

Texas InstrumentsIn Stock: 1221GD65232DWR Datasheet

MFR RecommendedRFQ

GD75232DW

Texas InstrumentsIn Stock: 3281GD75232DW Datasheet

MFR RecommendedRFQ

SN75185DWR

Texas InstrumentsIn Stock: 20123SN75185DWR Datasheet

MFR RecommendedRFQ

SN75C185DW

Texas InstrumentsIn Stock: 5285SN75C185DW Datasheet

MFR RecommendedRFQ

SN75C185DWR

Texas InstrumentsIn Stock: 1413SN75C185DWR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the MAX3185EWP is determined by strict alignment across the following critical parameters:

Primary Substitution Criteria:

• Protocol: RS232
• Type: Transceiver
• Number of Drivers/Receivers: 3/5
• Duplex: Full
• Package / Case: 20-SOIC (0.295", 7.50mm Width)
• Mounting Type: Surface Mount
• Moisture Sensitivity Level: 1 (Unlimited)

Secondary Compatibility Factors:

• Voltage Supply Range (must encompass or match the original 4.5V ~ 5.5V range)
• Operating Temperature Range (must support the application requirements)
• Receiver Hysteresis (electrical performance parameter)
• Data Rate (communication speed capability)

The substitute parts listed below maintain the core functional specifications of the MAX3185EWP while offering varying levels of compliance and product status. All substitutes are packaged in the identical 20-SOIC form factor and support full-duplex RS232 communication with 3/5 driver/receiver configuration.

Parameter Comparison

Engineering Selection Recommendations

For Extended Temperature Range Applications (-40°C to 85°C): GD65232DW and GD65232DWR maintain the full operating temperature range of the MAX3185EWP. Both parts are ROHS3 compliant and available in Last Time Buy or Obsolete status. GD65232DW is packaged in Tube format, while GD65232DWR is available in Cut Tape and Digi-Reel format.

For Standard Temperature Range Applications (0°C to 70°C): SN75C185DWR is the preferred active substitute, offering ROHS3 compliance and active product status. This part provides extended voltage supply range (4.5V ~ 13.2V) and is available in Tape & Reel packaging. SN75C185DW is also available in Tube packaging with Last Time Buy status.

For Highest Availability: SN75185DWR offers the highest inventory availability (20,049 pcs) with active product status and ROHS3 compliance. This part operates within the 4.5V ~ 5.5V supply range matching the original MAX3185EWP and is packaged in Tape & Reel format.

For RoHS Compliance Requirements: All listed substitute parts are ROHS3 compliant, addressing the non-compliant status of the original MAX3185EWP. Selection should be based on temperature range requirements and product availability status.

Frequently Asked Questions (FAQ)

Q: Can GD75232DW be used in applications requiring -40°C operation? A: No. GD75232DW operates only from 0°C to 70°C. For extended temperature range applications, select GD65232DW or GD65232DWR, which support -40°C to 85°C operation.

Q: What is the difference between GD65232DW and GD65232DWR? A: Both parts are electrically identical with the same specifications. The primary difference is packaging: GD65232DW is supplied in Tube format, while GD65232DWR is supplied in Cut Tape and Digi-Reel format. Selection depends on assembly process requirements.

Q: Are all substitute parts pin-compatible with MAX3185EWP? A: All substitute parts share the identical 20-SOIC package form factor (0.295", 7.50mm Width) and maintain the same functional configuration (3/5 Transceiver Full RS232). Pin compatibility is assured for direct replacement.

Q: Which substitute offers the best long-term availability? A: SN75185DWR and SN75C185DWR both carry Active product status, indicating ongoing manufacturer support. SN75185DWR has the highest current inventory (20,049 pcs) and is recommended for new designs requiring long-term supply assurance.

Q: How do receiver hysteresis differences affect substitution? A: Receiver hysteresis values vary across substitutes (500mV to 1.1V versus the original 650mV). These differences affect noise immunity and signal detection thresholds. Selection should be based on specific application noise environment and signal integrity requirements.

Q: What is the significance of the extended voltage range in SN75C185DW and SN75C185DWR? A: These parts support 4.5V ~ 13.2V supply range compared to the original 4.5V ~ 5.5V. The extended range provides flexibility for applications with variable supply voltages but does not affect compatibility with standard 5V systems.

Q: Are there packaging format options for each substitute? A: Yes. Most substitutes are available in multiple packaging formats: Tube, Cut Tape, Digi-Reel, and Tape & Reel. Packaging selection depends on manufacturing process (manual assembly, pick-and-place automation) and order quantity requirements.