TRS232ID RS232 Transceiver - Equivalent & Substitute Parts

Part Overview

The TRS232ID is a 2/2 full-duplex RS232 transceiver manufactured by Texas Instruments in a 16-SOIC surface mount package. This interface IC operates across the standard 4.5V to 5.5V supply range with a 120 kbps data rate and 500 mV receiver hysteresis. The device is currently in Last Time Buy status, indicating end-of-life production. Identifying qualified substitute parts is necessary to ensure design continuity and maintain supply chain reliability for new production runs and long-term system support.

Key Parameters

Parameter	TRS232ID Value
Manufacturer	Texas Instruments
Type	Transceiver
Protocol	RS232
Number of Drivers/Receivers	2/2
Duplex	Full
Receiver Hysteresis	500 mV
Data Rate	120 kbps
Voltage - Supply	4.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Package / Case	16-SOIC (0.154", 3.90mm Width)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Last Time Buy

Substitute Part Grouping Explanation

Substitution of the TRS232ID is determined by strict equivalence across the following critical 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: 4.5V ~ 5.5V (mandatory for power supply compatibility)
Receiver Hysteresis: 500 mV (functional equivalence)
Data Rate: 120 kbps minimum (functional equivalence)
Operating Temperature: -40°C ~ 85°C (functional equivalence for extended range applications)
RoHS Status: ROHS3 Compliant (regulatory equivalence)

Substitute parts are grouped into two categories:

MFR Recommended Substitutes (Active Status): Parts with Active product status from Texas Instruments or qualified manufacturers, offering direct functional replacement with enhanced or equivalent performance characteristics.

Parametric Equivalents (Obsolete Status): Parts meeting all critical electrical and mechanical parameters but with Obsolete product status, suitable for legacy system support or as secondary alternatives when primary substitutes are unavailable.

Parameter Comparison

Part Number	Manufacturer	Product Status	Data Rate	Operating Temp	Receiver Hysteresis	Voltage Supply	Package	MSL
TRS232ID	Texas Instruments	Last Time Buy	120 kbps	-40°C ~ 85°C	500 mV	4.5V ~ 5.5V	16-SOIC	1
MAX232EIDR	Texas Instruments	Active	250 kbps	-40°C ~ 85°C	500 mV	4.5V ~ 5.5V	16-SOIC	1
MAX202ID	Texas Instruments	Obsolete	120 kbps	-40°C ~ 85°C	500 mV	4.5V ~ 5.5V	16-SOIC	1
TRS202EID	Texas Instruments	Obsolete	120 kbps	-40°C ~ 85°C	500 mV	4.5V ~ 5.5V	16-SOIC	1
HIN232ACBNZ	Renesas Electronics	Active	230 kbps	0°C ~ 70°C	500 mV	4.5V ~ 5.5V	16-SOIC	3
HIN232ACBNZ-T	Renesas Electronics	Active	230 kbps	0°C ~ 70°C	500 mV	4.5V ~ 5.5V	16-SOIC	3
HIN232EIBNZ	Renesas Electronics	Active	230 kbps	-40°C ~ 85°C	500 mV	4.5V ~ 5.5V	16-SOIC	3
HIN232EIBNZ-T	Renesas Electronics	Active	230 kbps	-40°C ~ 85°C	500 mV	4.5V ~ 5.5V	16-SOIC	3
ICL3232IBNZ-T7A	Renesas Electronics	Active	250 kbps	-40°C ~ 85°C	300 mV	3V ~ 5.5V	16-SOIC	3
MAX232CSE+	Analog Devices Inc./Maxim	Active	120 kbps	0°C ~ 70°C	500 mV	4.5V ~ 5.5V	16-SOIC	1
MAX232CSE+T	Analog Devices Inc./Maxim	Active	120 kbps	0°C ~ 70°C	500 mV	4.5V ~ 5.5V	16-SOIC	1

Engineering Selection Recommendations

Primary Substitutes (Active Status, Full Parameter Match):

MAX232EIDR and MAX232CSE+T are the preferred primary substitutes. Both maintain Active product status with ROHS3 compliance and MSL 1 rating. MAX232EIDR offers enhanced data rate capability (250 kbps) while maintaining full operating temperature range (-40°C ~ 85°C). MAX232CSE+T provides identical electrical performance to the TRS232ID with standard commercial temperature range (0°C ~ 70°C) and is available in high volume (64,960 pcs in stock).

Secondary Substitutes (Active Status, Extended Temperature Range):

HIN232EIBNZ and HIN232EIBNZ-T from Renesas Electronics Corporation are Active alternatives supporting the full -40°C ~ 85°C operating temperature range with enhanced data rate (230 kbps). These devices carry MSL 3 rating and are suitable for applications requiring extended temperature performance. The -T variant indicates tape and reel packaging for automated assembly.

Extended Supply Voltage Option:

ICL3232IBNZ-T7A supports an extended supply voltage range (3V ~ 5.5V) compared to the standard 4.5V ~ 5.5V specification. This device is suitable for applications requiring lower voltage operation while maintaining 250 kbps data rate and full temperature range. Receiver hysteresis is specified at 300 mV, which remains within acceptable RS232 interface margins.

Legacy Alternatives (Obsolete Status):

MAX202ID and TRS202EID are parametric equivalents with Obsolete product status. These parts match all critical electrical specifications but are no longer in active production. Selection should be limited to legacy system maintenance or when primary substitutes are unavailable.

Frequently Asked Questions (FAQ)

Q: Can MAX232EIDR directly replace TRS232ID in existing designs?

A: Yes. MAX232EIDR meets all critical substitution parameters: 2/2 full-duplex RS232 transceiver, 16-SOIC package, 4.5V ~ 5.5V supply, -40°C ~ 85°C operating range, and ROHS3 compliance. The enhanced 250 kbps data rate provides additional performance margin over the 120 kbps requirement. Pin-to-pin compatibility is maintained.

Q: What is the difference between HIN232ACBNZ and HIN232EIBNZ?

A: Both are Renesas RS232 transceivers in 16-SOIC packages with 230 kbps data rate. The primary difference is operating temperature range: HIN232ACBNZ operates 0°C ~ 70°C (commercial range), while HIN232EIBNZ operates -40°C ~ 85°C (industrial range). Select HIN232EIBNZ for applications requiring extended temperature performance.

Q: Why does ICL3232IBNZ-T7A have different receiver hysteresis (300 mV vs 500 mV)?

A: ICL3232IBNZ-T7A is specified with 300 mV receiver hysteresis, which is tighter than the TRS232ID specification of 500 mV. This represents enhanced noise immunity and is functionally compatible with RS232 interface requirements. The lower hysteresis value does not prevent substitution but may require signal integrity assessment in noise-sensitive applications.

Q: What does MSL 3 (168 Hours) mean compared to MSL 1 (Unlimited)?

A: MSL (Moisture Sensitivity Level) indicates moisture absorption limits. MSL 1 (Unlimited) allows indefinite shelf storage without moisture baking. MSL 3 (168 Hours) requires moisture baking if the device is exposed to ambient humidity for more than 168 hours before reflow soldering. Renesas devices with MSL 3 require proper moisture control during storage and assembly but are otherwise functionally equivalent.

Q: Are MAX232CSE+ and MAX232CSE+T interchangeable?

A: Both are Analog Devices MAX232 variants with identical electrical specifications. MAX232CSE+ is packaged in Tube, while MAX232CSE+T is packaged in Cut Tape (CT) & Digi-Reel for automated assembly. Selection depends on assembly process requirements. Electrical performance is identical.

Q: Can I use a substitute with higher data rate (250 kbps) in a 120 kbps application?

A: Yes. Higher data rate capability provides additional performance margin and is backward compatible with lower-speed applications. Devices such as MAX232EIDR (250 kbps) and ICL3232IBNZ-T7A (250 kbps) are suitable direct replacements for 120 kbps designs.

Q: What should I consider when selecting between Texas Instruments and Renesas substitutes?

A: Both manufacturers provide qualified RS232 transceivers meeting the critical substitution parameters. Texas Instruments options (MAX232 series) maintain MSL 1 rating and are available in high volume. Renesas options (HIN232 series) offer extended data rates (230 kbps) and full temperature range but carry MSL 3 rating. Selection should be based on supply availability, moisture handling capability, and volume requirements.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message