MAX213IDB RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The MAX213IDB is a 4/5 transceiver full RS232 interface IC in 28-SSOP surface mount packaging manufactured by Texas Instruments. This part is classified as obsolete, which necessitates identification of active equivalent and substitute components for new designs and production continuity. The MAX213IDB operates across the industrial temperature range of -40°C to 85°C with a supply voltage of 4.5V to 5.5V and supports data rates up to 120 kbps. Finding suitable alternatives ensures design flexibility and supply chain reliability.

Key Parameters

Parameter	Value
Manufacturer Part Number	MAX213IDB
Manufacturer	Texas Instruments
Category	Interface
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	-40°C ~ 85°C
Mounting Type	Surface Mount
Package / Case	28-SSOP (0.209", 5.30mm Width)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the MAX213IDB is determined by strict equivalence across the following critical parameters:

Protocol: RS232
Number of Drivers/Receivers: 4/5
Duplex: Full
Voltage Supply Range: 4.5V ~ 5.5V
Operating Temperature Range: -40°C ~ 85°C
Mounting Type: Surface Mount
Data Rate: 120 kbps minimum
Receiver Hysteresis: 500 mV or greater
Package Type: 28-SSOP or 28-TSSOP (mechanically compatible)
Compliance: ROHS3, MSL 1

Substitute parts are grouped into three categories:

MFR Recommended (Active Status): TRS213IDBR - Direct functional replacement with active product status and identical electrical specifications.
Parametric Equivalents (Obsolete/Active Mix): MAX211IDB and TRS213IDB - Functionally equivalent with matching electrical parameters but varying product status and inventory availability.
Direct Equivalents (Active Status): MAX213EEAI+T and Analog Devices ADM213 series - Active alternatives with identical or superior electrical specifications, available in multiple packaging options.

Parameter Comparison

Part Number	Manufacturer	Product Status	Protocol	Drivers/Receivers	Data Rate	Receiver Hysteresis	Package	Packaging Type
MAX213IDB	Texas Instruments	Obsolete	RS232	4/5	120 kbps	500 mV	28-SSOP	Tube
TRS213IDBR	Texas Instruments	Active	RS232	4/5	120 kbps	500 mV	28-SSOP	Digi-Reel
MAX211IDB	Texas Instruments	Obsolete	RS232	4/5	120 kbps	500 mV	28-SSOP	Tube
TRS213IDB	Texas Instruments	Obsolete	RS232	4/5	120 kbps	500 mV	28-SSOP	Tube
MAX213EEAI+T	Analog Devices Inc./Maxim Integrated	Active	RS232	4/5	120 kbps	500 mV	28-SSOP	Tape & Reel
ADM213ARSZ	Analog Devices Inc.	Active	RS232	4/5	120 kbps	650 mV	28-SSOP	Tube
ADM213EARSZ	Analog Devices Inc.	Active	RS232	4/5	230 kbps	650 mV	28-SSOP	Tube
ADM213EARUZ	Analog Devices Inc.	Active	RS232	4/5	230 kbps	650 mV	28-TSSOP	Tube

Engineering Selection Recommendations

Primary Recommendation: TRS213IDBR

TRS213IDBR is the preferred substitute for MAX213IDB. It maintains identical electrical specifications (120 kbps data rate, 500 mV receiver hysteresis, 4.5V–5.5V supply) and package form factor (28-SSOP). The part holds active product status with 27,100 units in stock, ensuring long-term availability. Both parts are ROHS3 compliant with MSL 1 rating.

Secondary Recommendation: MAX213EEAI+T

MAX213EEAI+T provides direct functional equivalence with active product status. Supplied in Tape & Reel packaging, this variant is suitable for automated assembly processes. Electrical specifications are identical to MAX213IDB. Inventory of 5,300 units supports production requirements.

Alternative for Enhanced Performance: ADM213EARSZ or ADM213EARSZ-REEL

The ADM213EARSZ series from Analog Devices offers superior data rate capability (230 kbps versus 120 kbps) while maintaining full backward compatibility with MAX213IDB electrical requirements. Receiver hysteresis of 650 mV exceeds the 500 mV specification, providing enhanced noise immunity. Both parts are ROHS3 compliant and actively manufactured.

Package Consideration: ADM213EARUZ

For designs requiring reduced PCB footprint, ADM213EARUZ provides the same enhanced performance in 28-TSSOP packaging (4.40mm width versus 5.30mm for SSOP). This variant is suitable for space-constrained applications while maintaining full electrical compatibility.

Frequently Asked Questions (FAQ)

Q: Can MAX213EEAI+T replace MAX213IDB directly?

A: Yes. MAX213EEAI+T is electrically and functionally identical to MAX213IDB. Both support 4/5 RS232 transceiver operation, 120 kbps data rate, 500 mV receiver hysteresis, and 4.5V–5.5V supply voltage. The primary difference is packaging format (Tape & Reel versus Tube) and active product status.

Q: What is the difference between TRS213IDBR and MAX213IDB?

A: TRS213IDBR is the active production equivalent of the obsolete MAX213IDB. Electrical specifications are identical. The part number change reflects Texas Instruments' product line consolidation. TRS213IDBR is recommended for new designs requiring long-term supply assurance.

Q: Are ADM213 parts compatible with MAX213IDB?

A: ADM213 parts from Analog Devices are functionally compatible with MAX213IDB for RS232 transceiver applications. All variants maintain the 4/5 driver/receiver configuration, full duplex operation, and 4.5V–5.5V supply range. ADM213ARSZ and ADM213EARSZ variants feature 650 mV receiver hysteresis (versus 500 mV), providing enhanced noise margin. ADM213EARSZ and ADM213EARSZ-REEL support 230 kbps data rate, exceeding MAX213IDB capability.

Q: What is the difference between 28-SSOP and 28-TSSOP packages?

A: Both are surface mount packages with 28 pins. The 28-SSOP measures 5.30mm in width, while 28-TSSOP measures 4.40mm in width. Electrical functionality is identical. Selection depends on PCB layout constraints and assembly equipment compatibility.

Q: Can I use ADM213EARUZ-REEL in place of MAX213IDB?

A: Yes, with packaging format consideration. ADM213EARUZ-REEL is electrically compatible and offers superior performance (230 kbps data rate, 650 mV hysteresis). The 28-TSSOP package is mechanically compatible with standard 28-pin SSOP footprints on most PCBs. Verify assembly equipment supports the narrower 4.40mm package width.

Q: Which substitute offers the best long-term availability?

A: TRS213IDBR is the recommended choice for long-term supply assurance. It holds active product status with 27,100 units in inventory and is manufactured by Texas Instruments, the original MAX213IDB manufacturer. This ensures consistent quality and extended production support.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All substitute parts listed are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching MAX213IDB compliance specifications.

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