TRS232N RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The TRS232N is a 2/2 full-duplex RS232 transceiver manufactured by Texas Instruments in a 16-DIP package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs. The TRS232N operates within the 4.5V to 5.5V supply range with a 120Kbps data rate and 500mV receiver hysteresis, meeting ROHS3 compliance and REACH unaffected status.

Key Parameters

Parameter	TRS232N Specification
Manufacturer	Texas Instruments
Type	Transceiver
Protocol	RS232
Number of Drivers/Receivers	2/2
Duplex	Full
Receiver Hysteresis	500 mV
Data Rate	120Kbps
Voltage - Supply	4.5V ~ 5.5V
Operating Temperature	0°C ~ 70°C
Mounting Type	Through Hole
Package / Case	16-DIP (0.300", 7.62mm)
RoHS Status	ROHS3 Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the TRS232N is determined by strict adherence to the following parameters:

Critical Parameters (Must Match):

Protocol: RS232
Number of Drivers/Receivers: 2/2
Duplex: Full
Voltage Supply Range: 4.5V ~ 5.5V
Package / Case: 16-DIP (0.300", 7.62mm)
Mounting Type: Through Hole
RoHS Status: ROHS3 Compliant

Compatible Variation Parameters:

Receiver Hysteresis: 500 mV (primary); 650 mV acceptable with verification
Data Rate: 120Kbps (primary); 230Kbps acceptable with verification
Operating Temperature: 0°C ~ 70°C (primary); -40°C ~ 85°C acceptable with verification

Substitute parts are grouped into three categories based on parameter alignment with the TRS232N specification.

Parameter Comparison

Part Number	Manufacturer	Protocol	Drivers/Receivers	Data Rate	Receiver Hysteresis	Operating Temp	Product Status	Inventory
TRS232N	Texas Instruments	RS232	2/2	120Kbps	500 mV	0°C ~ 70°C	Obsolete	687 Pcs
ADM232LJNZ	Analog Devices Inc.	RS232	2/2	120Kbps	650 mV	0°C ~ 70°C	Active	5140 Pcs
HIN232ACPZ	Renesas Electronics	RS232	2/2	230Kbps	500 mV	0°C ~ 70°C	Active	3300 Pcs
HIN232ECPZ	Renesas Electronics	RS232	2/2	230Kbps	500 mV	0°C ~ 70°C	Active	10100 Pcs
HIN232IPZ	Renesas Electronics	RS232	2/2	120Kbps	500 mV	-40°C ~ 85°C	Active	10200 Pcs
MAX232EEPE+	Analog Devices Inc./Maxim	RS232	2/2	120Kbps	500 mV	-40°C ~ 85°C	Active	1550 Pcs
MAX232EPE+	Analog Devices Inc./Maxim	RS232	2/2	120Kbps	500 mV	-40°C ~ 85°C	Active	9463 Pcs
HIN232CPZ	Renesas Electronics	RS232	2/2	120Kbps	500 mV	0°C ~ 70°C	Active	9431 Pcs
MAX202CPE+	Analog Devices Inc./Maxim	RS232	2/2	120Kbps	500 mV	0°C ~ 70°C	Active	16840 Pcs
MAX202ECPE+	Analog Devices Inc./Maxim	RS232	2/2	120Kbps	500 mV	0°C ~ 70°C	Active	19015 Pcs
MAX220CPE+	Analog Devices Inc./Maxim	RS232	2/2	120Kbps	500 mV	0°C ~ 70°C	Active	866 Pcs

Engineering Selection Recommendations

Direct Parameter Match (Highest Compatibility): HIN232CPZ, MAX202CPE+, MAX202ECPE+, and MAX220CPE+ provide identical electrical specifications to the TRS232N with matching operating temperature range (0°C ~ 70°C), data rate (120Kbps), and receiver hysteresis (500mV). All are active products with ROHS3 compliance. MAX202CPE+ and MAX202ECPE+ offer the highest inventory availability.

Extended Temperature Range (Conditional Compatibility): HIN232IPZ, MAX232EEPE+, and MAX232EPE+ maintain identical electrical specifications but extend the operating temperature range to -40°C ~ 85°C. These parts are suitable for applications requiring wider temperature operation. All are active products with ROHS3 compliance.

Enhanced Data Rate (Conditional Compatibility): HIN232ACPZ and HIN232ECPZ provide 230Kbps data rate capability while maintaining 500mV receiver hysteresis and 0°C ~ 70°C operating temperature. These parts are suitable for applications requiring higher data throughput. HIN232ECPZ offers significantly higher inventory availability (10100 Pcs).

Alternative Hysteresis Specification: ADM232LJNZ provides 650mV receiver hysteresis instead of 500mV while maintaining all other critical parameters. This part is suitable only when the higher hysteresis specification is acceptable for the application.

All substitute parts maintain ROHS3 compliance, REACH unaffected status, and 16-DIP through-hole packaging identical to the TRS232N.

Frequently Asked Questions (FAQ)

Q: Can I use HIN232ACPZ or HIN232ECPZ as direct replacements for TRS232N? A: Yes, with application verification. These parts maintain identical supply voltage, package, and operating temperature range. The 230Kbps data rate exceeds the TRS232N specification of 120Kbps, making them suitable for applications where higher data throughput is acceptable or beneficial.

Q: What is the difference between MAX232EEPE+ and MAX232EPE+? A: Both parts are electrically identical with matching 120Kbps data rate, 500mV receiver hysteresis, and -40°C ~ 85°C operating temperature. MAX232EPE+ offers higher inventory availability (9463 Pcs vs. 1550 Pcs).

Q: Can I use parts with -40°C ~ 85°C operating temperature in a 0°C ~ 70°C application? A: Yes. Parts rated for -40°C ~ 85°C (HIN232IPZ, MAX232EEPE+, MAX232EPE+) are suitable for applications requiring only 0°C ~ 70°C operation. The extended temperature rating provides additional design margin.

Q: Why does ADM232LJNZ have 650mV receiver hysteresis instead of 500mV? A: ADM232LJNZ is manufactured by Analog Devices Inc. with a different hysteresis specification. This part is suitable only when the application design accepts or requires the higher 650mV hysteresis threshold.

Q: Are all substitute parts in the same 16-DIP package? A: Yes. All listed substitute parts use the 16-DIP (0.300", 7.62mm) through-hole package, ensuring mechanical and electrical compatibility with TRS232N PCB layouts.

Q: Which substitute part offers the best inventory availability? A: MAX202ECPE+ provides the highest inventory with 19015 Pcs in stock, followed by MAX202CPE+ with 16840 Pcs. Both maintain identical electrical specifications to the TRS232N.

Q: Do all substitute parts meet the same compliance standards as TRS232N? A: Yes. All listed substitute parts are ROHS3 compliant, REACH unaffected, and carry identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications.

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