SN75LBC241DWR Equivalent & Substitute Parts

Part Overview

The SN75LBC241DWR is a full-duplex RS232 transceiver manufactured by Texas Instruments, housed in a 28-SOIC surface mount package. This interface IC features 4/5 driver/receiver configuration with 500 mV receiver hysteresis and operates at 100 Kbps data rate. The part is currently in Last Time Buy status, indicating end-of-life production. Equivalent and substitute parts are necessary to ensure design continuity and maintain supply chain flexibility for applications requiring RS232 serial communication interfaces.

Substiute Parts

SN75LBC241DWR

Texas InstrumentsIn Stock: 3454SN75LBC241DWR Datasheet

Current PartRFQ

MAX211CDWR

Texas InstrumentsIn Stock: 4842MAX211CDWR Datasheet

MFR RecommendedRFQ

MAX241CWI+

Analog Devices Inc./Maxim IntegratedIn Stock: 2289MAX241CWI+ Datasheet

MFR RecommendedRFQ

MAX241CWI+T

Analog Devices Inc./Maxim IntegratedIn Stock: 2317MAX241CWI+T Datasheet

MFR RecommendedRFQ

MAX241ECWI+

Analog Devices Inc./Maxim IntegratedIn Stock: 1790MAX241ECWI+ Datasheet

MFR RecommendedRFQ

MAX241ECWI+T

Analog Devices Inc./Maxim IntegratedIn Stock: 3074MAX241ECWI+T Datasheet

MFR RecommendedRFQ

MAX241EEWI+

Analog Devices Inc./Maxim IntegratedIn Stock: 958MAX241EEWI+ Datasheet

MFR RecommendedRFQ

MAX241EEWI+T

Analog Devices Inc./Maxim IntegratedIn Stock: 2247MAX241EEWI+T Datasheet

MFR RecommendedRFQ

MAX241EWI+

Analog Devices Inc./Maxim IntegratedIn Stock: 982MAX241EWI+ Datasheet

MFR RecommendedRFQ

MAX241EWI+T

Analog Devices Inc./Maxim IntegratedIn Stock: 2160MAX241EWI+T Datasheet

MFR RecommendedRFQ

SP211ECT-L/TR

MaxLinear, Inc.In Stock: 1822SP211ECT-L/TR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SN75LBC241DWR is determined by the following critical parameters:

Mandatory Matching Parameters:

• Protocol: RS232
• Number of Drivers/Receivers: 4/5
• Duplex: Full
• Receiver Hysteresis: 500 mV
• Voltage Supply: 4.5V ~ 5.5V
• Package/Case: 28-SOIC (0.295", 7.50mm Width)
• Mounting Type: Surface Mount

Flexible Parameters (Allowable Variations):

• Data Rate: Substitute parts may exceed 100 Kbps (120 Kbps or 230 Kbps acceptable)
• Operating Temperature: Substitute parts may have extended range (-40°C ~ 85°C acceptable for 0°C ~ 70°C applications)
• Packaging Format: Tube or Tape & Reel both acceptable
• Manufacturer: Texas Instruments, Analog Devices Inc./Maxim Integrated, or MaxLinear, Inc.

All substitute parts listed maintain electrical and mechanical compatibility with the original SN75LBC241DWR design.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation for Direct Replacement: MAX211CDWR (Texas Instruments) provides the most direct substitution path. It maintains the same manufacturer lineage, identical operating temperature range, and Tape & Reel packaging format. Product status is Active with 4778 units in stock, ensuring supply continuity.

Alternative Selections Based on Application Requirements:

For applications requiring extended temperature operation (-40°C ~ 85°C), select from the MAX241EEWI+T or MAX241EWI+T series. Both are manufactured by Analog Devices Inc./Maxim Integrated and available in Tape & Reel packaging with Active product status.

For applications tolerating higher data rates, SP211ECT-L/TR (MaxLinear, Inc.) operates at 230 Kbps while maintaining all other electrical and mechanical specifications. This part is available in Tape & Reel format with Active status.

All substitute parts listed are ROHS3 compliant and carry MSL ratings compatible with standard assembly processes. Selection should prioritize Active product status parts to ensure long-term supply availability.

Frequently Asked Questions (FAQ)

Q: Can MAX241 series parts directly replace SN75LBC241DWR? A: Yes. MAX241 variants (MAX241CWI+, MAX241CWI+T, MAX241ECWI+, MAX241ECWI+T, MAX241EEWI+, MAX241EEWI+T, MAX241EWI+, MAX241EWI+T) are electrically and mechanically compatible. All maintain 4/5 driver/receiver configuration, 500 mV receiver hysteresis, 4.5V ~ 5.5V supply voltage, and 28-SOIC packaging. Data rate increases to 120 Kbps, which is backward compatible with 100 Kbps applications.

Q: What is the difference between Tube and Tape & Reel packaging? A: Tube packaging is suitable for manual assembly and small-volume applications. Tape & Reel packaging is optimized for automated pick-and-place assembly processes. Both formats contain identical die and electrical specifications. Selection depends on manufacturing process requirements.

Q: Are extended temperature variants (MAX241EEWI+T, MAX241EWI+T) suitable for standard 0°C ~ 70°C applications? A: Yes. Extended temperature parts (-40°C ~ 85°C) are fully compatible with standard temperature range applications (0°C ~ 70°C). They provide additional thermal margin and may be selected when supply of standard temperature variants is limited.

Q: Does SP211ECT-L/TR operate at different data rates than other substitutes? A: SP211ECT-L/TR operates at 230 Kbps compared to 100 Kbps (original) or 120 Kbps (MAX241 series). Higher data rate capability is backward compatible with lower-speed applications and does not affect electrical interface compatibility.

Q: Are all substitute parts RoHS compliant? A: Yes. All listed substitute parts are ROHS3 compliant. The original SN75LBC241DWR is also ROHS3 compliant, ensuring environmental regulation consistency across all alternatives.

Q: What inventory levels should influence part selection? A: MAX211CDWR offers the highest inventory (4778 units), followed by MAX241ECWI+T (3063 units) and MAX241CWI+T (2256 units). For long-term production requirements, prioritize parts with higher inventory levels to minimize supply chain risk.