TRSF3223IPW RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The TRSF3223IPW 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, with 952 units currently in stock. Due to its obsolete status, identifying functionally equivalent active alternatives is essential for design continuity and long-term supply chain reliability. Substitute parts must maintain compatibility across electrical specifications, mechanical packaging, and operational parameters to ensure direct replacement capability.

Key Parameters

Parameter	TRSF3223IPW
Manufacturer	Texas Instruments
Product Status	Obsolete
Type	Transceiver
Protocol	RS232
Number of Drivers/Receivers	2/2
Duplex	Full
Receiver Hysteresis	500 mV
Data Rate	1 Mbps
Voltage Supply Range	3V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Package / Case	20-TSSOP (0.173", 4.40mm Width)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the TRSF3223IPW is determined by strict adherence to the following 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
Operating Temperature Range: -40°C ~ 85°C (minimum requirement)

Allowable Variation Parameters:

Receiver Hysteresis: 300 mV to 500 mV (within RS232 specification tolerance)
Data Rate: 120 Kbps to 1 Mbps (backward compatible; higher rates support legacy applications)
Product Status: Active preferred; Obsolete acceptable for inventory continuity
Packaging Format: Tube, Cut Tape (CT) & Digi-Reel®, or Tape & Reel (TR)

Substitute parts are grouped into three categories: Direct Manufacturer Equivalents (same base product line, active status), Parametric Equivalents (matching electrical specifications, may be obsolete), and Manufacturer-Recommended Alternatives (different manufacturers, full parameter compliance).

Parameter Comparison

Part Number	Manufacturer	Product Status	Receiver Hysteresis	Data Rate	Operating Temp	Package	RoHS Status
TRSF3223IPW	Texas Instruments	Obsolete	500 mV	1 Mbps	-40°C ~ 85°C	20-TSSOP	ROHS3 Compliant
TRSF3223EIPWR	Texas Instruments	Active	500 mV	1 Mbps	-40°C ~ 85°C	20-TSSOP	ROHS3 Compliant
SN65C3223EPW	Texas Instruments	Obsolete	500 mV	1 Mbps	-40°C ~ 85°C	20-TSSOP	ROHS3 Compliant
SN65C3223PW	Texas Instruments	Obsolete	500 mV	1 Mbps	-40°C ~ 85°C	20-TSSOP	ROHS3 Compliant
TRSF3223EIPW	Texas Instruments	Obsolete	500 mV	1 Mbps	-40°C ~ 85°C	20-TSSOP	ROHS3 Compliant
MAX3223EEUP+	Analog Devices Inc./Maxim Integrated	Active	300 mV	120 Kbps	-40°C ~ 85°C	20-TSSOP	ROHS3 Compliant
MAX3223EEUP+T	Analog Devices Inc./Maxim Integrated	Active	300 mV	120 Kbps	-40°C ~ 85°C	20-TSSOP	ROHS3 Compliant
MAX3224EEUP+	Analog Devices Inc./Maxim Integrated	Active	500 mV	250 Kbps	-40°C ~ 85°C	20-TSSOP	ROHS3 Compliant
MAX3225EEUP+T	Analog Devices Inc./Maxim Integrated	Active	500 mV	1 Mbps	-40°C ~ 85°C	20-TSSOP	ROHS3 Compliant
SP3223EBEY-L/TR	MaxLinear, Inc.	Active	300 mV	250 Kbps	-40°C ~ 85°C	20-TSSOP	RoHS Compliant
SP3223ECY-L	MaxLinear, Inc.	Active	300 mV	235 Kbps	0°C ~ 70°C	20-TSSOP	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation: TRSF3223EIPWR

TRSF3223EIPWR is the direct successor to TRSF3223IPW from Texas Instruments. It maintains identical electrical specifications (500 mV receiver hysteresis, 1 Mbps data rate, -40°C to 85°C operating range) and mechanical packaging (20-TSSOP). The part is currently in active production status with 9,879 units in stock, ensuring long-term supply availability. ROHS3 compliance and MSL 1 rating match the original specification. This part provides the highest confidence for direct replacement without design modification.

Secondary Recommendation: MAX3225EEUP+T

MAX3225EEUP+T from Analog Devices Inc./Maxim Integrated offers full parameter equivalence to TRSF3223IPW, including 500 mV receiver hysteresis and 1 Mbps data rate. The part is active with 5,200 units available in Cut Tape & Digi-Reel® packaging. ROHS3 compliance and identical operating temperature range (-40°C to 85°C) ensure compatibility. This option provides supply diversification from an alternative manufacturer.

Alternative for Lower Data Rate Applications: MAX3223EEUP+T

MAX3223EEUP+T is suitable for applications where 120 Kbps data rate is sufficient. It features 300 mV receiver hysteresis and is actively produced by Analog Devices Inc./Maxim Integrated with 5,400 units in stock. This option is appropriate for legacy RS232 communication systems operating below 1 Mbps.

Manufacturer-Recommended Option: SP3223EBEY-L/TR

SP3223EBEY-L/TR from MaxLinear, Inc. is designated as manufacturer-recommended and is actively produced. It supports 250 Kbps data rate with 300 mV receiver hysteresis. The part is available in Tape & Reel packaging with 3,321 units in stock. RoHS compliance and MSL 1 rating are maintained. This option is suitable for applications where data rate requirements do not exceed 250 Kbps.

Note on SP3223ECY-L:

SP3223ECY-L operates within a reduced temperature range (0°C to 70°C) compared to the original specification (-40°C to 85°C). This part is suitable only for applications that do not require the full industrial temperature range.

Frequently Asked Questions (FAQ)

Q: Can TRSF3223EIPWR be used as a direct replacement for TRSF3223IPW?

A: Yes. TRSF3223EIPWR is the active production equivalent with identical electrical and mechanical specifications. It maintains 500 mV receiver hysteresis, 1 Mbps data rate, 20-TSSOP packaging, and -40°C to 85°C operating temperature range. No design changes are required.

Q: What is the difference between receiver hysteresis values of 300 mV and 500 mV?

A: Receiver hysteresis determines the voltage difference between the rising and falling threshold levels of the RS232 input. Both 300 mV and 500 mV values comply with RS232 specifications. Parts with 500 mV hysteresis provide greater noise immunity in electrically noisy environments. Parts with 300 mV hysteresis are suitable for standard applications with adequate signal integrity.

Q: Are all substitute parts available in the same packaging format?

A: No. The original TRSF3223IPW is specified without explicit packaging format notation. Substitute parts are available in Tube, Cut Tape (CT) & Digi-Reel®, and Tape & Reel (TR) formats. Verify packaging compatibility with your assembly process before procurement.

Q: Why does SP3223ECY-L have a different operating temperature range?

A: SP3223ECY-L is specified for 0°C to 70°C operation, which is narrower than the original -40°C to 85°C range. This part is suitable only for applications that do not require extended temperature operation. For full temperature range compatibility, select TRSF3223EIPWR, MAX3225EEUP+T, or SP3223EBEY-L/TR.

Q: What does "Active" product status mean compared to "Obsolete"?

A: Active status indicates the part is currently in production and available for new designs. Obsolete status indicates the manufacturer has discontinued production. For long-term supply chain reliability, prioritize active parts such as TRSF3223EIPWR, MAX3225EEUP+T, or SP3223EBEY-L/TR.

Q: Can I use MAX3223EEUP+T if my application requires 1 Mbps data rate?

A: MAX3223EEUP+T is specified for 120 Kbps maximum data rate. It is not suitable for applications requiring 1 Mbps operation. Use TRSF3223EIPWR or MAX3225EEUP+T for full 1 Mbps capability.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts are RoHS compliant (either ROHS3 or RoHS Compliant designation). REACH status is unaffected for all parts, and all carry MSL 1 (Unlimited) moisture sensitivity rating.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message