TRS3232ID RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The TRS3232ID is a 2/2 full-duplex RS232 transceiver manufactured by Texas Instruments in a 16-SOIC surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs. The TRS3232ID operates across a 3V to 5.5V supply range with a 250 kbps data rate and 300 mV receiver hysteresis, suitable for legacy RS232 communication interfaces requiring industrial temperature range operation (-40°C to 85°C).

Key Parameters

Parameter	TRS3232ID Value
Manufacturer	Texas Instruments
Type	Transceiver
Protocol	RS232
Number of Drivers/Receivers	2/2
Duplex	Full
Package / Case	16-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Voltage - Supply	3V ~ 5.5V
Data Rate	250 kbps
Receiver Hysteresis	300 mV
Operating Temperature	-40°C ~ 85°C
RoHS Status	ROHS3 Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the TRS3232ID is determined by strict alignment of the following parameters:

Protocol: RS232 (mandatory)
Number of Drivers/Receivers: 2/2 (mandatory)
Duplex: Full (mandatory)
Package / Case: 16-SOIC (mandatory for PCB compatibility)
Mounting Type: Surface Mount (mandatory)
Voltage - Supply: 3V ~ 5.5V (mandatory)
Operating Temperature: -40°C ~ 85°C (required for industrial applications)
Data Rate: 250 kbps minimum (functional requirement)
Receiver Hysteresis: 300 mV or 500 mV (both acceptable)
RoHS Status: ROHS3 Compliant (mandatory for regulatory compliance)

Substitute parts are grouped into two categories: direct equivalents (identical specifications) and functional equivalents (meeting all mandatory parameters with equal or superior performance characteristics).

Parameter Comparison

Part Number	Manufacturer	Product Status	Package	Data Rate	Receiver Hysteresis	Operating Temperature	RoHS Status
TRS3232ID	Texas Instruments	Obsolete	16-SOIC	250 kbps	300 mV	-40°C ~ 85°C	ROHS3 Compliant
TRS3232EIDR	Texas Instruments	Active	16-SOIC	250 kbps	300 mV	-40°C ~ 85°C	ROHS3 Compliant
ADM3232EARNZ	UMW	Active	16-SOIC	235 kbps	300 mV	-40°C ~ 85°C	ROHS3 Compliant
ADM3232EARNZ-REEL7	Analog Devices Inc.	Active	16-SOIC	460 kbps	500 mV	-40°C ~ 85°C	ROHS3 Compliant
ICL3232CBNZ	Renesas Electronics Corporation	Active	16-SOIC	250 kbps	300 mV	0°C ~ 70°C	ROHS3 Compliant
ICL3232CBNZ-T	Renesas Electronics Corporation	Active	16-SOIC	250 kbps	300 mV	0°C ~ 70°C	ROHS3 Compliant
ICL3232ECBNZ	Renesas Electronics Corporation	Active	16-SOIC	250 kbps	500 mV	0°C ~ 70°C	ROHS3 Compliant
ICL3232ECBNZ-T	Renesas Electronics Corporation	Active	16-SOIC	250 kbps	500 mV	0°C ~ 70°C	ROHS3 Compliant
ICL3232EIBNZ	Renesas Electronics Corporation	Active	16-SOIC	250 kbps	500 mV	-40°C ~ 85°C	ROHS3 Compliant
ICL3232EIBNZ-T	Renesas Electronics Corporation	Active	16-SOIC	250 kbps	500 mV	-40°C ~ 85°C	ROHS3 Compliant
ICL3232IBNZ-T	Renesas Electronics Corporation	Active	16-SOIC	250 kbps	300 mV	-40°C ~ 85°C	ROHS3 Compliant

Engineering Selection Recommendations

Direct Equivalent (Preferred for Replacement)

TRS3232EIDR is the primary substitute for TRS3232ID. This part is manufactured by Texas Instruments, maintains identical electrical specifications (250 kbps data rate, 300 mV receiver hysteresis, -40°C to 85°C operating range), and is packaged in 16-SOIC. The part is active in production with high inventory availability (634,478 units), ensuring supply chain continuity. ROHS3 compliance and identical supply voltage range (3V to 5.5V) confirm full compatibility.

Alternative Equivalents (Industrial Temperature Range)

ICL3232EIBNZ and ICL3232EIBNZ-T (Renesas Electronics Corporation) provide full substitution capability with identical electrical performance and industrial temperature range (-40°C to 85°C). These parts feature 500 mV receiver hysteresis, which exceeds the original 300 mV specification, providing improved noise immunity. Both are active products with substantial inventory (2,063 and 35,200 units respectively). Packaging format differs only in tape configuration (tube versus cut tape/digi-reel).

Limited Temperature Range Alternatives

ICL3232CBNZ, ICL3232CBNZ-T, ICL3232ECBNZ, and ICL3232ECBNZ-T are suitable only for applications operating within 0°C to 70°C. These parts are not appropriate for systems requiring the full -40°C to 85°C industrial temperature range of the original TRS3232ID.

Higher Performance Alternative

ADM3232EARNZ-REEL7 (Analog Devices Inc.) exceeds original specifications with 460 kbps data rate and 500 mV receiver hysteresis while maintaining -40°C to 85°C operation. This part is suitable for applications requiring enhanced performance margins.

Frequently Asked Questions (FAQ)

Q: Can ICL3232CBNZ replace TRS3232ID in industrial applications?

A: No. ICL3232CBNZ operates only within 0°C to 70°C, whereas TRS3232ID is rated for -40°C to 85°C. Use ICL3232EIBNZ or ICL3232EIBNZ-T for full industrial temperature range compatibility.

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

A: Receiver hysteresis determines the voltage difference required between logic state transitions. Higher hysteresis (500 mV) provides improved noise immunity in electrically noisy environments. Both values are acceptable substitutes for the original 300 mV specification.

Q: Are cut tape and tube packaging electrically equivalent?

A: Yes. Cut tape (CT) and digi-reel packaging and tube packaging contain identical die and electrical characteristics. The difference is only in physical packaging format for automated assembly or manual handling.

Q: Does TRS3232EIDR have higher data rate than TRS3232ID?

A: No. Both parts are rated at 250 kbps. Data rate is identical between the original and this direct equivalent.

Q: Why is TRS3232ID obsolete?

A: Product obsolescence is determined by the manufacturer. TRS3232EIDR is the active production equivalent from the same manufacturer and should be used for new designs and ongoing support.

Q: Can ADM3232EARNZ-REEL7 be used in place of TRS3232ID?

A: Yes. ADM3232EARNZ-REEL7 meets all mandatory substitution parameters: RS232 protocol, 2/2 drivers/receivers, full duplex, 16-SOIC package, surface mount, 3V to 5.5V supply, and -40°C to 85°C operation. The 460 kbps data rate and 500 mV hysteresis exceed original specifications.

Q: What is the moisture sensitivity level (MSL) difference between parts?

A: TRS3232ID has MSL 1 (unlimited shelf life). Renesas ICL3232 variants have MSL 3 (168 hours). This affects storage and handling procedures but does not impact electrical performance or substitution suitability.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message