TRS202IPWG4 RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The TRS202IPWG4 is a 2/2 full-duplex RS232 transceiver manufactured by Texas Instruments in a 16-TSSOP surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The part operates across the industrial temperature range of -40°C to 85°C with a 4.5V to 5.5V supply voltage and supports data rates up to 120 Kbps with 500 mV receiver hysteresis.

Key Parameters

Parameter	Value
Manufacturer Part Number	TRS202IPWG4
Manufacturer	Texas Instruments
Type	Transceiver
Protocol	RS232
Number of Drivers/Receivers	2/2
Duplex	Full
Package / Case	16-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
Voltage - Supply	4.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
Data Rate	120 Kbps
Receiver Hysteresis	500 mV
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the TRS202IPWG4 is determined by the following critical parameters:

Primary Substitution Criteria:

Protocol: RS232
Number of Drivers/Receivers: 2/2
Duplex: Full
Package / Case: 16-TSSOP (0.173", 4.40mm Width)
Mounting Type: Surface Mount
Voltage - Supply: 4.5V ~ 5.5V (compatible range)
RoHS Status: ROHS3 Compliant

Secondary Compatibility Factors:

Operating Temperature Range: Must support -40°C to 85°C or be suitable for the intended application temperature window
Data Rate: Minimum 120 Kbps; higher rates are acceptable
Receiver Hysteresis: 500 mV baseline; variations within 300–650 mV are functionally compatible for RS232 applications

Substitute parts are grouped into three categories: parametric equivalents (identical electrical specifications), direct manufacturers (active status alternatives), and manufacturer-recommended substitutes (enhanced specifications with extended data rates or improved receiver hysteresis).

Parameter Comparison

Part Number	Manufacturer	Status	Drivers/Receivers	Data Rate	Receiver Hysteresis	Operating Temp	Supply Voltage	Package	Inventory
TRS202IPWG4	Texas Instruments	Obsolete	2/2	120 Kbps	500 mV	-40°C ~ 85°C	4.5V ~ 5.5V	16-TSSOP	966
MAX202IPW	Texas Instruments	Obsolete	2/2	120 Kbps	500 mV	-40°C ~ 85°C	4.5V ~ 5.5V	16-TSSOP	2000
TRS202EIPW	Texas Instruments	Obsolete	2/2	120 Kbps	500 mV	-40°C ~ 85°C	4.5V ~ 5.5V	16-TSSOP	1372
MAX202EEUE+T	Analog Devices Inc./Maxim Integrated	Active	2/2	120 Kbps	500 mV	-40°C ~ 85°C	4.5V ~ 5.5V	16-TSSOP	3528
ADM202EARUZ	Analog Devices Inc.	Active	2/2	230 Kbps	650 mV	-40°C ~ 85°C	4.5V ~ 5.5V	16-TSSOP	2311
ADM202EARUZ-REEL	Analog Devices Inc.	Active	2/2	230 Kbps	650 mV	-40°C ~ 85°C	4.5V ~ 5.5V	16-TSSOP	1922
ADM202EARUZ-REEL7	Analog Devices Inc.	Active	2/2	230 Kbps	650 mV	-40°C ~ 85°C	4.5V ~ 5.5V	16-TSSOP	2400
MAX202CUE+	Analog Devices Inc./Maxim Integrated	Active	2/2	120 Kbps	500 mV	0°C ~ 70°C	4.5V ~ 5.5V	16-TSSOP	1226
MAX202ECUE+	Analog Devices Inc./Maxim Integrated	Active	2/2	120 Kbps	500 mV	0°C ~ 70°C	4.5V ~ 5.5V	16-TSSOP	1900
MAX202ECUE+T	Analog Devices Inc./Maxim Integrated	Active	2/2	120 Kbps	500 mV	0°C ~ 70°C	4.5V ~ 5.5V	16-TSSOP	19524
SP3232EBCY-L/TR	MaxLinear, Inc.	Active	2/2	250 Kbps	300 mV	0°C ~ 70°C	3V ~ 5.5V	16-TSSOP	25300

Engineering Selection Recommendations

For Industrial Temperature Range Applications (-40°C to 85°C):

Select from active-status parts with full industrial temperature support: MAX202EEUE+T, ADM202EARUZ, ADM202EARUZ-REEL, or ADM202EARUZ-REEL7. These parts maintain ROHS3 compliance and MSL 1 rating. The ADM202 series offers enhanced data rate capability (230 Kbps) and improved receiver hysteresis (650 mV), providing performance margin over the original specification.

For Commercial Temperature Range Applications (0°C to 70°C):

MAX202ECUE+T offers the highest inventory availability (19,524 units) with active product status, ROHS3 compliance, and identical electrical specifications to the TRS202IPWG4. SP3232EBCY-L/TR provides extended data rate capability (250 Kbps) and lower receiver hysteresis (300 mV) with significantly higher stock levels (25,300 units).

For Packaging Considerations:

Tape & Reel (TR) packaging is preferred for high-volume production. MAX202ECUE+T, ADM202EARUZ-REEL, and SP3232EBCY-L/TR are available in TR format. Tube packaging alternatives include MAX202CUE+, MAX202ECUE+, and ADM202EARUZ for lower-volume applications.

Compliance and Regulatory:

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and REACH unaffected status, matching the original part's regulatory profile.

Frequently Asked Questions (FAQ)

Q: Can MAX202ECUE+T directly replace TRS202IPWG4 in all applications?

A: MAX202ECUE+T is electrically equivalent with identical driver/receiver count, data rate, receiver hysteresis, and supply voltage. However, its operating temperature range is 0°C to 70°C, compared to the original -40°C to 85°C. Use this part only in applications within the 0°C to 70°C window.

Q: What is the difference between ADM202EARUZ and ADM202EARUZ-REEL?

A: Both parts are electrically identical. ADM202EARUZ is supplied in tube packaging, while ADM202EARUZ-REEL is supplied in tape & reel format. ADM202EARUZ-REEL7 is the Digi-Reel variant of the same part. Select based on your assembly process requirements.

Q: Why does SP3232EBCY-L/TR have a lower receiver hysteresis (300 mV) than the original (500 mV)?

A: Lower receiver hysteresis improves noise immunity in RS232 applications by reducing the input threshold window. This is a performance enhancement, not a limitation. SP3232EBCY-L/TR also supports higher data rates (250 Kbps vs. 120 Kbps) and operates from 3V to 5.5V, providing broader supply voltage compatibility.

Q: Are there any pin-compatibility concerns with these substitutes?

A: All substitute parts use the 16-TSSOP package with identical pinout. No PCB layout modifications are required for mechanical or electrical compatibility.

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

A: MAX202ECUE+T and SP3232EBCY-L/TR have active product status with the highest inventory levels (19,524 and 25,300 units respectively), indicating strong manufacturer support and long-term availability.

Q: Can I use ADM202EARUZ in place of TRS202IPWG4 for -40°C to 85°C applications?

A: Yes. ADM202EARUZ supports the full -40°C to 85°C operating temperature range and exceeds the original specifications with 230 Kbps data rate and 650 mV receiver hysteresis, both compatible with RS232 applications.

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