MAX211CDW Equivalent & Substitute Parts

Part Overview

The MAX211CDW is a full-duplex RS232 transceiver IC manufactured by Texas Instruments, housed in a 28-SOIC surface mount package. This device features 4 drivers and 5 receivers with a 500 mV receiver hysteresis and supports data rates up to 120 Kbps. The part is currently in Last Time Buy status, indicating end-of-life production. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain supply chain reliability for applications requiring RS232 interface functionality.

Key Parameters

Parameter	MAX211CDW
Manufacturer	Texas Instruments
Type	Transceiver
Protocol	RS232
Number of Drivers/Receivers	4/5
Duplex	Full
Receiver Hysteresis	500 mV
Data Rate	120 Kbps
Voltage Supply	4.5V ~ 5.5V
Operating Temperature	0°C ~ 70°C
Package/Case	28-SOIC (0.295", 7.50mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the MAX211CDW is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Protocol: RS232
Number of Drivers/Receivers: 4/5
Duplex: Full
Package/Case: 28-SOIC (0.295", 7.50mm Width)
Voltage Supply: 4.5V ~ 5.5V
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant

Allowable Variations:

Operating Temperature Range: Substitutes with extended temperature ranges (-40°C ~ 85°C) are acceptable for applications operating within the original 0°C ~ 70°C specification
Receiver Hysteresis: Variations between 500 mV and 650 mV are acceptable within RS232 specification tolerances
Data Rate: Substitutes with higher data rates (230 Kbps) are acceptable for applications requiring 120 Kbps operation
Packaging Format: Tube and Tape & Reel (TR) formats are interchangeable based on assembly requirements
MSL Rating: Variations in MSL are acceptable provided handling procedures are followed

Parameter Comparison

Part Number	Manufacturer	Drivers/Receivers	Data Rate	Receiver Hysteresis	Operating Temp	Packaging	Product Status
MAX211CDW	Texas Instruments	4/5	120 Kbps	500 mV	0°C ~ 70°C	Tube	Last Time Buy
MAX211CDWR	Texas Instruments	4/5	120 Kbps	500 mV	0°C ~ 70°C	Tape & Reel	Active
MAX211EEWI+	Analog Devices Inc./Maxim Integrated	4/5	120 Kbps	500 mV	-40°C ~ 85°C	Tube	Active
MAX211EEWI+T	Analog Devices Inc./Maxim Integrated	4/5	120 Kbps	500 mV	-40°C ~ 85°C	Tape & Reel	Active
HIN211EIBZ	Renesas Electronics Corporation	4/5	230 Kbps	500 mV	-40°C ~ 85°C	Tube	Active
HIN211ECBZ	Renesas Electronics Corporation	4/5	230 Kbps	500 mV	0°C ~ 70°C	Tube	Active
HIN211ECBZ-T	Renesas Electronics Corporation	4/5	230 Kbps	500 mV	0°C ~ 70°C	Tape & Reel	Active
ADM211ARZ	Analog Devices Inc.	4/5	120 Kbps	650 mV	-40°C ~ 85°C	Tube	Active
ADM211ARZ-REEL	Analog Devices Inc.	4/5	120 Kbps	650 mV	-40°C ~ 85°C	Tape & Reel	Active
ADM211EARZ	Analog Devices Inc.	4/5	120 Kbps	650 mV	-40°C ~ 85°C	Tube	Active
ADM211EARZ-REEL	Analog Devices Inc.	4/5	120 Kbps	650 mV	-40°C ~ 85°C	Tape & Reel	Active

Engineering Selection Recommendations

Direct Replacement (Same Manufacturer): MAX211CDWR is the primary direct substitute, offering identical electrical specifications with Tape & Reel packaging and Active product status. This part maintains Texas Instruments sourcing continuity.

Extended Temperature Range Substitutes: MAX211EEWI+ and MAX211EEWI+T provide extended operating temperature range (-40°C ~ 85°C) while maintaining all other electrical parameters. These are suitable for applications requiring broader temperature operation within the 0°C ~ 70°C envelope.

Higher Data Rate Substitutes: HIN211EIBZ and HIN211ECBZ from Renesas Electronics offer 230 Kbps data rate capability, exceeding the 120 Kbps requirement. HIN211ECBZ maintains the original 0°C ~ 70°C temperature range, while HIN211EIBZ extends to -40°C ~ 85°C.

Receiver Hysteresis Variation: ADM211ARZ, ADM211ARZ-REEL, ADM211EARZ, and ADM211EARZ-REEL from Analog Devices feature 650 mV receiver hysteresis compared to the original 500 mV. All maintain 120 Kbps data rate and extended temperature range (-40°C ~ 85°C). These parts are suitable where increased hysteresis improves noise immunity.

Packaging Considerations: Tube packaging (original MAX211CDW format) is available in MAX211EEWI+, HIN211EIBZ, HIN211ECBZ, ADM211ARZ, and ADM211EARZ. Tape & Reel packaging is available in MAX211CDWR, MAX211EEWI+T, HIN211ECBZ-T, ADM211ARZ-REEL, and ADM211EARZ-REEL for high-volume assembly operations.

Compliance Status: All substitute parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment with the original part.

Frequently Asked Questions (FAQ)

Q: Can MAX211EEWI+ directly replace MAX211CDW in existing designs? A: Yes. MAX211EEWI+ maintains identical electrical specifications (4/5 drivers/receivers, 120 Kbps data rate, 500 mV hysteresis, 4.5V ~ 5.5V supply) and 28-SOIC package. The extended operating temperature range (-40°C ~ 85°C) is a superset of the original 0°C ~ 70°C specification, making it a direct functional substitute.

Q: What is the difference between HIN211EIBZ and HIN211ECBZ? A: Both parts are Renesas HIN211 transceivers with 230 Kbps data rate and 500 mV receiver hysteresis in 28-SOIC packages. The primary difference is operating temperature: HIN211ECBZ operates 0°C ~ 70°C (matching the original MAX211CDW range), while HIN211EIBZ extends to -40°C ~ 85°C. Both are suitable substitutes for 120 Kbps applications.

Q: Why do ADM211 parts have 650 mV receiver hysteresis instead of 500 mV? A: The ADM211 series from Analog Devices is designed with higher receiver hysteresis (650 mV) for improved noise immunity in noisy environments. This variation remains within RS232 specification tolerances and is acceptable for applications operating within the original 120 Kbps data rate requirement.

Q: Is Tape & Reel packaging compatible with Tube packaging in terms of electrical function? A: Yes. Tape & Reel and Tube packaging formats contain electrically identical components. The packaging difference affects only handling, storage, and assembly processes. Selection between formats depends on manufacturing requirements and volume considerations.

Q: Can I use HIN211EIBZ (230 Kbps) in place of MAX211CDW (120 Kbps)? A: Yes. The HIN211EIBZ supports higher data rates than required, making it functionally compatible for 120 Kbps applications. The 28-SOIC package, 4/5 driver/receiver configuration, and 4.5V ~ 5.5V supply voltage are identical. Extended temperature range (-40°C ~ 85°C) is acceptable for designs operating within 0°C ~ 70°C.

Q: What is the MSL rating difference between MAX211CDW and substitute parts? A: MAX211CDW has MSL 1 (Unlimited moisture sensitivity level). HIN211 parts have MSL 3 (168 hours). MSL differences affect storage and handling procedures but do not impact electrical function. Proper moisture control during storage and assembly is required for MSL 3 components.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment with the original MAX211CDW.

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