TRS3222IPWR RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The TRS3222IPWR is a 2/2 full-duplex RS232 transceiver manufactured by Texas Instruments in a 20-TSSOP surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The device 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 transceiver functionality.

Key Parameters

Parameter	TRS3222IPWR
Manufacturer	Texas Instruments
Type	Transceiver
Protocol	RS232
Number of Drivers/Receivers	2/2
Duplex	Full
Data Rate	250kbps
Receiver Hysteresis	300mV
Voltage Supply	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
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the TRS3222IPWR is determined by strict adherence to the following critical parameters:

Core Compatibility Requirements:

RS232 protocol with 2/2 full-duplex transceiver configuration
20-TSSOP package footprint (0.173", 4.40mm Width)
Surface mount mounting type
3V to 5.5V supply voltage range
RoHS3 compliance and MSL 1 rating

Performance Tolerance Parameters:

Data rate: 250kbps or higher
Receiver hysteresis: 300mV or higher
Operating temperature: -40°C to 85°C or wider range

Substitute parts are grouped into two categories: direct equivalents from Texas Instruments with identical specifications, and parametric equivalents from Analog Devices Inc./Maxim Integrated that meet or exceed the core electrical and mechanical requirements while maintaining full functional compatibility.

Parameter Comparison

Part Number	Manufacturer	Data Rate	Receiver Hysteresis	Operating Temperature	Product Status	Packaging	Inventory
TRS3222IPWR	Texas Instruments	250kbps	300mV	-40°C ~ 85°C	Obsolete	Not specified	2400 Pcs
TRS3222EIPWR	Texas Instruments	500kbps	300mV	-40°C ~ 85°C	Active	Cut Tape (CT) & Digi-Reel®	5930 Pcs
MAX3222IPWR	Texas Instruments	250kbps	300mV	-40°C ~ 85°C	Active	Cut Tape (CT) & Digi-Reel®	19200 Pcs
MAX3222EEUP+	Analog Devices Inc./Maxim Integrated	1Mbps	500mV	-40°C ~ 85°C	Active	Tube	2987 Pcs
MAX3222EEUP+T	Analog Devices Inc./Maxim Integrated	1Mbps	500mV	-40°C ~ 85°C	Active	Cut Tape (CT) & Digi-Reel®	45400 Pcs
MAX3222CUP+	Analog Devices Inc./Maxim Integrated	120Kbps	300mV	0°C ~ 70°C	Active	Tube	2266 Pcs
MAX3222CUP+T	Analog Devices Inc./Maxim Integrated	120Kbps	300mV	0°C ~ 70°C	Active	Cut Tape (CT)	4517 Pcs
MAX3222ECUP+	Analog Devices Inc./Maxim Integrated	1Mbps	500mV	0°C ~ 70°C	Active	Tube	22335 Pcs
MAX3222ECUP+T	Analog Devices Inc./Maxim Integrated	1Mbps	500mV	0°C ~ 70°C	Active	Tape & Reel (TR)	3120 Pcs
MAX3222EEUP/V+	Analog Devices Inc./Maxim Integrated	250kbps	500mV	-40°C ~ 85°C	Active	Tube	774 Pcs
MAX3222EUP+	Analog Devices Inc./Maxim Integrated	120Kbps	300mV	-40°C ~ 85°C	Active	Tube	2000 Pcs

Engineering Selection Recommendations

Direct Equivalent (Texas Instruments): TRS3222EIPWR is the recommended direct substitute. It maintains identical electrical specifications with the exception of increased data rate (500kbps vs. 250kbps), which is a performance enhancement. This part is active status with established supply availability and identical package specifications.

Parametric Equivalent (Analog Devices Inc./Maxim Integrated): MAX3222IPWR provides identical electrical performance to the original TRS3222IPWR with active product status and superior supply availability (19200 Pcs). This part is suitable for applications requiring exact specification matching.

MAX3222EEUP+T offers enhanced performance with 1Mbps data rate and 500mV receiver hysteresis, maintaining full -40°C to 85°C operating range. This part is recommended for applications where higher data rates provide system benefits.

MAX3222EEUP/V+ matches the original 250kbps data rate with enhanced receiver hysteresis (500mV) and full temperature range support, suitable for noise-sensitive applications.

Temperature-Constrained Applications: MAX3222CUP+T and MAX3222ECUP+T are suitable only for applications operating within 0°C to 70°C range. These parts are not recommended as primary substitutes for the original -40°C to 85°C specification.

All recommended substitutes maintain RoHS3 compliance, MSL 1 rating, and 20-TSSOP package compatibility.

Frequently Asked Questions (FAQ)

Q: Can MAX3222EEUP+T replace TRS3222IPWR in all applications? A: MAX3222EEUP+T is functionally compatible as a direct substitute. The enhanced data rate (1Mbps vs. 250kbps) and receiver hysteresis (500mV vs. 300mV) provide performance improvements. Verify that your application does not depend on the original 250kbps specification before substitution.

Q: What is the difference between Cut Tape (CT) & Digi-Reel® and Tube packaging? A: Packaging affects handling and assembly processes. Cut Tape & Digi-Reel® is suitable for automated pick-and-place assembly. Tube packaging is used for manual assembly or lower-volume applications. Both provide identical electrical performance and component quality.

Q: Why are some substitutes limited to 0°C to 70°C operating temperature? A: Temperature range is determined by the specific device variant. Parts designated with "C" temperature grade (such as MAX3222CUP+T) are rated for commercial temperature range only. The original TRS3222IPWR operates across industrial temperature range (-40°C to 85°C). Select substitutes matching your application's temperature requirements.

Q: Is TRS3222EIPWR a direct replacement for TRS3222IPWR? A: Yes. TRS3222EIPWR is a direct Texas Instruments equivalent with identical package, pin configuration, and electrical specifications except for increased data rate capability (500kbps). It is the recommended substitute from the original manufacturer.

Q: Do all substitute parts maintain RoHS3 compliance? A: All listed substitute parts are RoHS3 compliant with MSL 1 rating, matching the original part's environmental and regulatory status.

Q: Can I use MAX3222ECUP+T if my application requires -40°C to 85°C operation? A: No. MAX3222ECUP+T is rated for 0°C to 70°C only. For full -40°C to 85°C operation, select MAX3222EEUP+T, MAX3222EEUP/V+, or TRS3222EIPWR.

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