TRS202CDR RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The TRS202CDR is a 2/2 full-duplex RS232 transceiver manufactured by Texas Instruments in a 16-SOIC surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The TRS202CDR operates within a 4.5V to 5.5V supply voltage range with a 120 Kbps data rate and 500 mV receiver hysteresis, suitable for legacy RS232 communication applications requiring full transceiver functionality.

Key Parameters

Parameter	Value
Manufacturer Part Number	TRS202CDR
Manufacturer	Texas Instruments
Type	Transceiver
Protocol	RS232
Number of Drivers/Receivers	2/2
Duplex	Full
Data Rate	120 Kbps
Voltage - Supply	4.5V ~ 5.5V
Receiver Hysteresis	500 mV
Operating Temperature	0°C ~ 70°C
Package / Case	16-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the TRS202CDR is determined by strict equivalence across the following electrical and mechanical parameters:

Protocol: RS232
Number of Drivers/Receivers: 2/2
Duplex: Full
Data Rate: 120 Kbps
Voltage - Supply: 4.5V ~ 5.5V
Receiver Hysteresis: 500 mV
Package / Case: 16-SOIC (0.154", 3.90mm Width)
Mounting Type: Surface Mount

Substitute parts are categorized into three groups:

Parametric Equivalents maintain identical electrical specifications and operating temperature range (0°C ~ 70°C). These parts are direct functional replacements with no design modifications required.

Direct Equivalents maintain identical electrical specifications but may differ in packaging format (Tube vs. Cut Tape). These parts are functionally equivalent with packaging considerations for procurement and assembly.

Upgrade Parts maintain identical electrical specifications but extend the operating temperature range to -40°C ~ 85°C, providing enhanced thermal performance for applications requiring wider temperature operation.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Type	Protocol	Drivers/Receivers	Data Rate	Supply Voltage	Operating Temperature	Package	Product Status	Packaging Format
TRS202CDR	Texas Instruments	Transceiver	RS232	2/2	120 Kbps	4.5V ~ 5.5V	0°C ~ 70°C	16-SOIC	Obsolete	-
MAX202CDR	Texas Instruments	Transceiver	RS232	2/2	120 Kbps	4.5V ~ 5.5V	0°C ~ 70°C	16-SOIC	Obsolete	Cut Tape & Digi-Reel
MAX232DR	Texas Instruments	Transceiver	RS232	2/2	120 Kbps	4.5V ~ 5.5V	0°C ~ 70°C	16-SOIC	Active	Cut Tape & Digi-Reel
TRS202ECDR	Texas Instruments	Transceiver	RS232	2/2	120 Kbps	4.5V ~ 5.5V	0°C ~ 70°C	16-SOIC	Obsolete	Cut Tape & Digi-Reel
TRS232DR	Texas Instruments	Transceiver	RS232	2/2	120 Kbps	4.5V ~ 5.5V	0°C ~ 70°C	16-SOIC	Obsolete	Cut Tape & Digi-Reel
MAX202ECSE+	Analog Devices Inc./Maxim Integrated	Transceiver	RS232	2/2	120 Kbps	4.5V ~ 5.5V	0°C ~ 70°C	16-SOIC	Active	Tube
MAX232ECSE+	Analog Devices Inc./Maxim Integrated	Transceiver	RS232	2/2	120 Kbps	4.5V ~ 5.5V	0°C ~ 70°C	16-SOIC	Active	Tube
MAX202EESE+	Analog Devices Inc./Maxim Integrated	Transceiver	RS232	2/2	120 Kbps	4.5V ~ 5.5V	-40°C ~ 85°C	16-SOIC	Active	Tube
MAX202EESE+T	Analog Devices Inc./Maxim Integrated	Transceiver	RS232	2/2	120 Kbps	4.5V ~ 5.5V	-40°C ~ 85°C	16-SOIC	Active	Cut Tape & Digi-Reel
MAX232EESE+	Analog Devices Inc./Maxim Integrated	Transceiver	RS232	2/2	120 Kbps	4.5V ~ 5.5V	-40°C ~ 85°C	16-SOIC	Active	Tube
MAX232EESE+T	Analog Devices Inc./Maxim Integrated	Transceiver	RS232	2/2	120 Kbps	4.5V ~ 5.5V	-40°C ~ 85°C	16-SOIC	Active	Cut Tape & Digi-Reel

Engineering Selection Recommendations

For Direct Replacement (Obsolete Status Mitigation)

MAX202CDR and TRS202ECDR provide parametric equivalence with identical operating temperature specifications. Both parts maintain ROHS3 compliance and MSL 1 rating. MAX202CDR offers higher inventory availability (24,890 units) compared to TRS202ECDR (1,422 units), making it the preferred parametric equivalent for immediate substitution.

For Active Production (Long-Term Availability)

MAX232DR represents the optimal choice for new designs and long-term production continuity. This part maintains all electrical specifications of the TRS202CDR while offering active product status and significantly higher inventory (305,300 units). The MAX232DR is available in Cut Tape & Digi-Reel packaging, suitable for both manual and automated assembly processes.

For Extended Temperature Applications

MAX202EESE+T and MAX232EESE+T extend the operating temperature range to -40°C ~ 85°C while maintaining all other electrical parameters. These upgrade parts are suitable for applications requiring enhanced thermal performance. MAX202EESE+T provides 27,498 units in Cut Tape format, while MAX232EESE+T offers 30,400 units, both with active product status.

Packaging Considerations

Parts designated with "+T" suffix are supplied in Cut Tape & Digi-Reel format, optimized for automated pick-and-place assembly. Parts designated with "+" suffix without "T" are supplied in Tube format, suitable for manual assembly or lower-volume applications. Selection between packaging formats depends on assembly process requirements and production volume.

Frequently Asked Questions (FAQ)

Q: Can MAX232DR be used as a direct replacement for TRS202CDR?

A: Yes. MAX232DR maintains identical electrical specifications including RS232 protocol, 2/2 driver/receiver configuration, 120 Kbps data rate, 4.5V to 5.5V supply voltage, and 16-SOIC package. The primary difference is product status (Active vs. Obsolete) and higher inventory availability. No design modifications are required.

Q: What is the difference between MAX202ECSE+ and MAX202EESE+?

A: Both parts are manufactured by Analog Devices Inc./Maxim Integrated with identical electrical specifications. The primary difference is operating temperature range: MAX202ECSE+ operates from 0°C to 70°C, while MAX202EESE+ operates from -40°C to 85°C. Selection depends on application temperature requirements.

Q: Does packaging format affect electrical performance?

A: No. Packaging format (Cut Tape & Digi-Reel vs. Tube) affects procurement, handling, and assembly processes only. Electrical performance and specifications remain identical. Selection should be based on assembly equipment compatibility and production volume requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All parts listed maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, consistent with the original TRS202CDR specifications.

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

A: MAX232DR offers the highest inventory (305,300 units) with active product status, making it the optimal choice for long-term production continuity and new design implementations.

Q: Can upgrade parts with extended temperature range be used in standard 0°C to 70°C applications?

A: Yes. Upgrade parts (MAX202EESE+T, MAX232EESE+T) with -40°C to 85°C operating range are backward compatible with applications requiring only 0°C to 70°C operation. Extended temperature capability provides additional design margin without performance degradation in standard temperature environments.

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