TRS3222IPW Equivalent & Substitute Parts

Part Overview

The TRS3222IPW is a 2/2 full-duplex RS232 transceiver manufactured by Texas Instruments in a 20-TSSOP surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The TRS3222IPW operates across a 3V to 5.5V supply range with a 250kbps data rate and 300mV receiver hysteresis, suitable for legacy RS232 communication applications requiring full duplex operation.

Key Parameters

Parameter	Value
Manufacturer Part Number	TRS3222IPW
Manufacturer	Texas Instruments
Type	Transceiver
Protocol	RS232
Number of Drivers/Receivers	2/2
Duplex	Full
Data Rate	250kbps
Receiver Hysteresis	300mV
Voltage Supply Range	3V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
Package / Case	20-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the TRS3222IPW is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

Protocol: RS232
Number of Drivers/Receivers: 2/2
Duplex: Full
Package / Case: 20-TSSOP (0.173", 4.40mm Width)
Voltage Supply Range: 3V ~ 5.5V
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variation Parameters:

Data Rate: Equal to or greater than 250kbps
Receiver Hysteresis: 300mV or 500mV
Operating Temperature: Must encompass or match -40°C ~ 85°C range
Product Status: Active preferred for ongoing availability

Substitute parts are grouped based on their alignment with these parameters. Parts with higher data rates and extended temperature ranges remain functionally compatible within the TRS3222IPW's operational envelope.

Parameter Comparison

Part Number	Manufacturer	Data Rate	Receiver Hysteresis	Operating Temperature	Product Status	Packaging	Inventory (Pcs)
TRS3222IPW	Texas Instruments	250kbps	300mV	-40°C ~ 85°C	Obsolete	Not specified	1074
TRS3222EIPWR	Texas Instruments	500kbps	300mV	-40°C ~ 85°C	Active	Cut Tape (CT) & Digi-Reel®	5930
MAX3222EEUP+	Analog Devices Inc./Maxim Integrated	1Mbps	500mV	-40°C ~ 85°C	Active	Tube	2987
MAX3222EEUP+T	Analog Devices Inc./Maxim Integrated	1Mbps	500mV	-40°C ~ 85°C	Active	Cut Tape (CT) & Digi-Reel®	45400
MAX3222CUP+	Analog Devices Inc./Maxim Integrated	120Kbps	300mV	0°C ~ 70°C	Active	Tube	2266
MAX3222CUP+T	Analog Devices Inc./Maxim Integrated	120Kbps	300mV	0°C ~ 70°C	Active	Cut Tape (CT)	4517
MAX3222ECUP+	Analog Devices Inc./Maxim Integrated	1Mbps	500mV	0°C ~ 70°C	Active	Tube	22335
MAX3222ECUP+T	Analog Devices Inc./Maxim Integrated	1Mbps	500mV	0°C ~ 70°C	Active	Tape & Reel (TR)	3120
MAX3222EEUP/V+	Analog Devices Inc./Maxim Integrated	250kbps	500mV	-40°C ~ 85°C	Active	Tube	774
MAX3222EUP+	Analog Devices Inc./Maxim Integrated	120Kbps	300mV	-40°C ~ 85°C	Active	Tube	2000
MAX3222EUP+T	Analog Devices Inc./Maxim Integrated	120Kbps	300mV	-40°C ~ 85°C	Active	Cut Tape (CT) & Digi-Reel®	25100

Engineering Selection Recommendations

Primary Substitute (Highest Compatibility): TRS3222EIPWR is the direct Texas Instruments successor to the TRS3222IPW. It maintains identical electrical specifications for receiver hysteresis (300mV) and operating temperature range (-40°C ~ 85°C), with enhanced data rate capability (500kbps vs. 250kbps). Active product status ensures long-term availability and supply chain continuity.

Secondary Substitutes (Extended Performance): MAX3222EEUP+T and MAX3222EEUP+ offer superior data rate performance (1Mbps) and extended operating temperature support (-40°C ~ 85°C). These Analog Devices/Maxim Integrated parts maintain full electrical and mechanical compatibility with the TRS3222IPW while providing performance headroom. MAX3222EEUP+T in Cut Tape & Digi-Reel® packaging offers the highest inventory availability (45,400 pcs).

Temperature-Constrained Substitutes: MAX3222CUP+, MAX3222CUP+T, MAX3222ECUP+, and MAX3222ECUP+T operate within a narrower temperature range (0°C ~ 70°C). These parts are suitable only for applications where the full -40°C ~ 85°C range is not required. MAX3222ECUP+ provides 1Mbps data rate within this constrained temperature window.

Exact Data Rate Match: MAX3222EEUP/V+ matches the original 250kbps data rate with -40°C ~ 85°C operating temperature, offering a direct functional equivalent with enhanced receiver hysteresis (500mV).

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and 20-TSSOP package compatibility with the original TRS3222IPW.

Frequently Asked Questions (FAQ)

Q: Can MAX3222 series parts directly replace the TRS3222IPW? A: Yes. All listed MAX3222 variants maintain the required 2/2 full-duplex RS232 transceiver configuration, 20-TSSOP package, 3V ~ 5.5V supply range, and surface mount capability. Electrical performance differences (data rate, hysteresis, temperature range) do not prevent substitution within the TRS3222IPW's operational envelope.

Q: What is the difference between 300mV and 500mV receiver hysteresis? A: Receiver hysteresis determines the voltage differential required for input signal transitions. 500mV hysteresis provides greater noise immunity compared to 300mV. Both values are compatible with RS232 protocol specifications and the TRS3222IPW application space.

Q: Why do some substitutes have lower data rates (120Kbps)? A: MAX3222CUP+ and MAX3222EUP+ variants operate at 120Kbps, which is below the TRS3222IPW's 250kbps specification. These parts are not recommended as direct substitutes unless the application's actual data rate requirement is confirmed to be 120Kbps or lower.

Q: Are temperature-constrained parts (0°C ~ 70°C) suitable replacements? A: Temperature-constrained variants (MAX3222CUP+, MAX3222ECUP+) are suitable only if the application operates exclusively within the 0°C ~ 70°C range. Applications requiring the full -40°C ~ 85°C range must use parts with matching temperature specifications.

Q: What packaging options are available? A: Substitute parts are available in Tube, Cut Tape (CT) & Digi-Reel®, and Tape & Reel (TR) packaging. Selection depends on production volume and assembly process requirements. All maintain the 20-TSSOP (0.173", 4.40mm Width) case format.

Q: Is RoHS3 compliance maintained across all substitutes? A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with modern manufacturing and environmental standards.

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