TRS3223CPWR RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The TRS3223CPWR is a full-duplex RS232 transceiver manufactured by Texas Instruments, featuring 2 drivers and 2 receivers 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 part operates across a 3V to 5.5V supply range with a 250kbps data rate and 500mV receiver hysteresis, suitable for legacy serial communication applications requiring RS232 protocol compliance.

Key Parameters

Parameter	Value
Manufacturer Part Number	TRS3223CPWR
Manufacturer	Texas Instruments
Type	Transceiver
Protocol	RS232
Number of Drivers/Receivers	2/2
Duplex	Full
Package / Case	20-TSSOP (0.173", 4.40mm Width)
Voltage - Supply	3V ~ 5.5V
Data Rate	250kbps
Operating Temperature	0°C ~ 70°C
Receiver Hysteresis	500 mV
Mounting Type	Surface Mount
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the TRS3223CPWR is determined by the following critical parameters:

Mandatory Matching Parameters:

Protocol: RS232
Number of Drivers/Receivers: 2/2
Duplex: Full
Package / Case: 20-TSSOP (0.173", 4.40mm Width)
Voltage - Supply: 3V ~ 5.5V
Mounting Type: Surface Mount

Allowable Variation Parameters:

Data Rate: Minimum 250kbps (equal or higher acceptable)
Receiver Hysteresis: 300mV or 500mV (both acceptable for RS232 applications)
Operating Temperature: Extended range (-40°C ~ 85°C) acceptable for obsolete part replacement
Product Status: Active parts preferred for long-term availability
RoHS/REACH Compliance: ROHS3 Compliant maintained across all substitutes

Substitute parts are grouped by manufacturer and product status to facilitate selection based on availability and long-term support requirements.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Data Rate	Receiver Hysteresis	Operating Temperature	Product Status	Packaging	Inventory (Pcs)
TRS3223CPWR	Texas Instruments	250kbps	500 mV	0°C ~ 70°C	Obsolete	Cut Tape (CT)	3300
MAX3223CPWR	Texas Instruments	250kbps	500 mV	0°C ~ 70°C	Obsolete	Cut Tape (CT)	3200
TRS3223ECPW	Texas Instruments	500kbps	500 mV	0°C ~ 70°C	Obsolete	Tube	1392
MAX3223EEUP+	Analog Devices Inc./Maxim Integrated	120Kbps	300 mV	-40°C ~ 85°C	Active	Tube	2188
MAX3223EEUP+T	Analog Devices Inc./Maxim Integrated	120Kbps	300 mV	-40°C ~ 85°C	Active	Cut Tape (CT) & Digi-Reel®	5400
SP3223EBEY-L/TR	MaxLinear, Inc.	250kbps	300 mV	-40°C ~ 85°C	Active	Tape & Reel (TR)	3321
SP3223EEY-L	MaxLinear, Inc.	235Kbps	300 mV	-40°C ~ 85°C	Active	Tube	5965
SP3223EEY-L/TR	MaxLinear, Inc.	235Kbps	300 mV	-40°C ~ 85°C	Active	Cut Tape (CT) & Digi-Reel®	25200
ICL3223EIVZ	Renesas Electronics Corporation	250kbps	500 mV	-40°C ~ 85°C	Active	Tube	1978
ICL3223EIVZ-T	Renesas Electronics Corporation	250kbps	500 mV	-40°C ~ 85°C	Active	Tape & Reel (TR)	1500
ICL3223IAZ	Renesas Electronics Corporation	250kbps	300 mV	-40°C ~ 85°C	Active	Tube	1416

Engineering Selection Recommendations

Direct Parametric Equivalents (Obsolete Status): MAX3223CPWR and TRS3223ECPW maintain identical electrical specifications to the TRS3223CPWR within the obsolete product category. These parts are suitable for applications where existing inventory must be maintained or where design documentation references specific Texas Instruments part numbers.

Active Substitute Parts (Recommended for New Designs): ICL3223EIVZ and ICL3223EIVZ-T (Renesas Electronics Corporation) provide the closest electrical match with active product status. Both maintain 250kbps data rate and 500mV receiver hysteresis, with extended operating temperature range (-40°C ~ 85°C). ICL3223EIVZ-T in Tape & Reel packaging offers superior handling for high-volume production.

SP3223EBEY-L/TR and SP3223EEY-L/TR (MaxLinear, Inc.) deliver active product status with highest inventory availability (3321 and 25200 units respectively). These parts maintain 250kbps or 235kbps data rates with 300mV receiver hysteresis and extended temperature range. SP3223EEY-L/TR in Cut Tape & Digi-Reel® packaging is optimal for production continuity.

MAX3223EEUP+ and MAX3223EEUP+T (Analog Devices Inc./Maxim Integrated) are active alternatives with extended temperature range. Note that data rate specification (120Kbps) is lower than the original part; these are suitable only for applications where reduced data rate is acceptable.

All recommended substitutes maintain ROHS3 compliance and identical 20-TSSOP package geometry, ensuring direct PCB compatibility without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can I use ICL3223IAZ as a substitute for TRS3223CPWR? A: ICL3223IAZ is not a direct substitute. While it maintains RS232 protocol, 2/2 driver/receiver configuration, and 250kbps data rate, it uses a 20-SSOP package (0.209", 5.30mm width) instead of the required 20-TSSOP package (0.173", 4.40mm width). Package geometry differences prevent direct PCB compatibility.

Q: What is the difference between SP3223EEY-L and SP3223EEY-L/TR? A: Both parts are electrically identical with 235Kbps data rate, 300mV receiver hysteresis, and -40°C ~ 85°C operating temperature. The difference is packaging: SP3223EEY-L is supplied in Tube format, while SP3223EEY-L/TR is supplied in Cut Tape & Digi-Reel® format. Selection depends on production volume and handling requirements.

Q: Why do some substitutes have lower data rates (120Kbps) than the original (250kbps)? A: MAX3223EEUP+ and MAX3223EEUP+T specify 120Kbps maximum data rate. These parts are functionally compatible with RS232 protocol and identical electrical supply/package specifications but are suitable only for applications where communication speed requirements do not exceed 120Kbps. Verify application requirements before selection.

Q: Are all substitute parts RoHS compliant? A: All listed substitute parts maintain ROHS3 compliance or equivalent RoHS certification, consistent with the original TRS3223CPWR specification.

Q: What is the significance of receiver hysteresis differences (300mV vs 500mV)? A: Both 300mV and 500mV receiver hysteresis values are acceptable for RS232 transceiver applications. The 500mV specification provides greater noise immunity in electrically noisy environments, while 300mV is standard for general-purpose RS232 communication. Selection depends on application noise environment.

Q: Which substitute offers the best long-term availability? A: SP3223EEY-L/TR (MaxLinear, Inc.) offers the highest inventory level (25200 units) with active product status and Cut Tape & Digi-Reel® packaging suitable for production automation. This part is recommended for designs requiring extended production support.

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