MAX213CDW Equivalent & Substitute Parts

Part Overview

The MAX213CDW is a full-duplex RS232 transceiver with 4 drivers and 4 receivers, housed in a 28-SOIC package. This interface IC operates at 4.5V to 5.5V supply voltage with a data rate of 120 Kbps and receiver hysteresis of 500 mV. The device is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs requiring this functional specification.

Key Parameters

Parameter	Value
Manufacturer Part Number	MAX213CDW
Manufacturer	Texas Instruments
Type	Transceiver
Protocol	RS232
Number of Drivers/Receivers	4/4
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
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the MAX213CDW is determined by the following critical parameters:

Functional Requirements:

RS232 protocol compliance
4 drivers and 4 receivers configuration
Full-duplex operation
120 Kbps minimum data rate capability
500 mV receiver hysteresis
4.5V to 5.5V supply voltage range

Physical Requirements:

28-SOIC package form factor (0.295", 7.50mm Width)
Surface mount mounting type

Compliance Requirements:

ROHS3 compliance
REACH unaffected status
EAR99 export classification

Substitute parts are grouped into three categories based on their relationship to the original specification:

MFR Recommended Substitutes: Parts from Analog Devices Inc. (ADM213 series) and Texas Instruments (TRS213IDBR) that maintain full functional equivalence with identical or superior electrical characteristics.

Direct Manufacturer Equivalents: Active production parts from Analog Devices Inc./Maxim Integrated (MAX213EEWI+, MAX213EWI+, MAX213CWI+T) that share the same base product number and package, with extended operating temperature ranges.

Parametric Equivalents: Parts with identical electrical specifications but different product status or manufacturer (MAX211CDW), suitable for applications where the original specification is the primary requirement.

Parameter Comparison

Part Number	Manufacturer	Protocol	Drivers/Receivers	Data Rate	Receiver Hysteresis	Supply Voltage	Operating Temp	Package	Product Status	Packaging Type
MAX213CDW	Texas Instruments	RS232	4/4	120 Kbps	500 mV	4.5V ~ 5.5V	0°C ~ 70°C	28-SOIC	Obsolete	—
TRS213IDBR	Texas Instruments	RS232	4/4	120 Kbps	500 mV	4.5V ~ 5.5V	-40°C ~ 85°C	28-SSOP	Active	Tube
MAX213EEWI+	Analog Devices Inc./Maxim Integrated	RS232	4/4	120 Kbps	500 mV	4.5V ~ 5.5V	-40°C ~ 85°C	28-SOIC	Active	Tube
HIN213EIBZ	Renesas Electronics Corporation	RS232	4/4	230 Kbps	500 mV	4.5V ~ 5.5V	-40°C ~ 85°C	28-SOIC	Active	Tray
ADM213ARZ	Analog Devices Inc.	RS232	4/4	120 Kbps	650 mV	4.5V ~ 5.5V	-40°C ~ 85°C	28-SOIC	Active	Tube
ADM213ARZ-REEL	Analog Devices Inc.	RS232	4/4	120 Kbps	650 mV	4.5V ~ 5.5V	-40°C ~ 85°C	28-SOIC	Active	Tape & Reel (TR)
ADM213EARZ	Analog Devices Inc.	RS232	4/4	230 Kbps	650 mV	4.5V ~ 5.5V	-40°C ~ 85°C	28-SOIC	Active	Tube
ADM213EARZ-REEL	Analog Devices Inc.	RS232	4/4	230 Kbps	650 mV	4.5V ~ 5.5V	-40°C ~ 85°C	28-SOIC	Active	Cut Tape (CT) & Digi-Reel®
MAX213CWI+T	Analog Devices Inc./Maxim Integrated	RS232	4/4	120 Kbps	500 mV	4.5V ~ 5.5V	0°C ~ 70°C	28-SOIC	Active	Tape & Reel (TR)
MAX213EWI+	Analog Devices Inc./Maxim Integrated	RS232	4/4	120 Kbps	500 mV	4.5V ~ 5.5V	-40°C ~ 85°C	28-SOIC	Active	Tube
MAX211CDW	Texas Instruments	RS232	4/4	120 Kbps	500 mV	4.5V ~ 5.5V	0°C ~ 70°C	28-SOIC	Last Time Buy	Tube

Engineering Selection Recommendations

For Direct Replacement (Same Package, Same Temperature Range): MAX213CWI+T is the primary choice for applications requiring identical operating temperature specifications (0°C to 70°C) and 28-SOIC package form factor. This part maintains the original 500 mV receiver hysteresis and 120 Kbps data rate, with active product status and ROHS3 compliance.

For Extended Temperature Operation: MAX213EEWI+ and MAX213EWI+ support extended operating temperature range (-40°C to 85°C) while maintaining the 28-SOIC package and identical electrical specifications. Both parts are in active production status with ROHS3 compliance.

For Higher Data Rate Requirements: HIN213EIBZ (Renesas) and ADM213EARZ/ADM213EARZ-REEL (Analog Devices) support 230 Kbps data rate, doubling the original specification. These parts maintain 28-SOIC package compatibility and extended temperature operation. ADM213EARZ variants feature 650 mV receiver hysteresis.

For Volume Production: ADM213ARZ-REEL and ADM213EARZ-REEL are supplied in tape and reel packaging, suitable for automated assembly processes. Both maintain ROHS3 compliance and active product status.

For Package Transition: TRS213IDBR provides an alternative in 28-SSOP package (smaller footprint: 0.209" vs 0.295" width) with extended temperature range and active production status. This option requires PCB layout modification.

All recommended substitutes maintain ROHS3 compliance, REACH unaffected status, and EAR99 export classification consistent with the original part.

Frequently Asked Questions (FAQ)

Q: Can MAX213EEWI+ directly replace MAX213CDW without circuit modification?

A: Yes. MAX213EEWI+ maintains identical electrical specifications (RS232 protocol, 4/4 drivers/receivers, 500 mV hysteresis, 120 Kbps data rate, 4.5V-5.5V supply) and 28-SOIC package form factor. The extended operating temperature range (-40°C to 85°C vs 0°C to 70°C) provides additional operational margin without requiring design changes.

Q: What is the difference between ADM213ARZ and ADM213EARZ?

A: Both parts are Analog Devices RS232 transceivers in 28-SOIC package with 4/4 drivers/receivers and 4.5V-5.5V supply voltage. The primary difference is data rate: ADM213ARZ operates at 120 Kbps, while ADM213EARZ operates at 230 Kbps. Both feature 650 mV receiver hysteresis (compared to 500 mV in the original MAX213CDW). Packaging variants (ARZ-REEL and EARZ-REEL) indicate tape and reel supply formats for automated assembly.

Q: Is TRS213IDBR compatible with existing PCB layouts designed for MAX213CDW?

A: TRS213IDBR is not pin-compatible due to package difference: 28-SSOP (0.209" width) versus 28-SOIC (0.295" width). PCB layout modification is required. However, electrical specifications are identical, and the smaller footprint may provide space advantages in new designs.

Q: What is the significance of the 500 mV versus 650 mV receiver hysteresis difference?

A: Receiver hysteresis affects noise immunity and switching threshold characteristics. The 500 mV specification (MAX213CDW, MAX213EEWI+, MAX213CWI+T, HIN213EIBZ) provides tighter threshold control. The 650 mV specification (ADM213 series) provides increased noise margin. Both values are within RS232 standard compliance and are functionally compatible for typical applications.

Q: Can I use HIN213EIBZ as a drop-in replacement for MAX213CDW?

A: HIN213EIBZ is electrically compatible with identical package (28-SOIC), supply voltage (4.5V-5.5V), and driver/receiver configuration (4/4). It offers superior data rate (230 Kbps vs 120 Kbps) and extended temperature operation (-40°C to 85°C). The 500 mV receiver hysteresis matches the original specification. No circuit modification is required.

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 (TR) and Cut Tape (CT) & Digi-Reel® packaging are designed for automated pick-and-place assembly in high-volume production. Electrical specifications are identical; packaging choice depends on assembly process requirements.

Q: Why is MAX213CDW listed as obsolete?

A: Obsolete status indicates the part is no longer in active production. Active alternatives with identical or superior specifications are available from multiple manufacturers (Analog Devices, Renesas, Texas Instruments). Substitution is necessary for new designs and ongoing system support.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed maintain ROHS3 compliance and REACH unaffected status, consistent with the original MAX213CDW specification and current regulatory requirements.

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