SN75C3232EPWR Equivalent & Substitute Parts

Part Overview

The SN75C3232EPWR is an active RS232 interface transceiver manufactured by Texas Instruments, configured as a 2/2 full-duplex transceiver in a 16-TSSOP surface mount package. This device operates across a 3V to 5.5V supply voltage range and supports data rates up to 1 Mbps with a 300 mV receiver hysteresis specification. The part is ROHS3 compliant, REACH unaffected, and maintains an active product status. Equivalent and substitute parts are identified based on matching protocol, transceiver configuration, supply voltage range, mounting type, and package compatibility to ensure functional interchangeability in RS232 communication applications.

Key Parameters

Parameter	SN75C3232EPWR
Manufacturer	Texas Instruments
Protocol	RS232
Type	Transceiver
Drivers/Receivers	2/2
Duplex	Full
Data Rate	1 Mbps
Receiver Hysteresis	300 mV
Supply Voltage	3V ~ 5.5V
Operating Temperature	0°C ~ 70°C
Mounting Type	Surface Mount
Package	16-TSSOP (0.173", 4.40mm Width)
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the SN75C3232EPWR is determined by the following critical parameters: RS232 protocol compliance, 2/2 full-duplex transceiver configuration, 16-pin surface mount package format, 3V to 5.5V supply voltage compatibility, and ROHS3 compliance status. Parts are grouped into two categories based on package type and electrical performance characteristics.

Category 1: Parametric Equivalents (Identical Package & Performance) Parts matching the 16-TSSOP package with 1 Mbps data rate capability and 300 mV receiver hysteresis maintain full electrical and mechanical compatibility with the main part.

Category 2: Manufacturer Recommended Alternatives (Package or Performance Variations) Parts from Renesas Electronics Corporation with 16-TSSOP or 16-SSOP packages, operating at 250 kbps data rate with 300 mV or 500 mV receiver hysteresis, and extended or standard temperature ranges. These parts maintain RS232 protocol compliance, 2/2 transceiver configuration, and 3V to 5.5V supply voltage range, with ROHS3 compliance and surface mount mounting type.

Parameter Comparison

Part Number	Manufacturer	Protocol	Drivers/Receivers	Data Rate	Receiver Hysteresis	Supply Voltage	Operating Temperature	Package	Packaging Type	RoHS Status
SN75C3232EPWR	Texas Instruments	RS232	2/2	1 Mbps	300 mV	3V ~ 5.5V	0°C ~ 70°C	16-TSSOP	Cut Tape & Digi-Reel	ROHS3
TRSF3232ECPWR	Texas Instruments	RS232	2/2	1 Mbps	300 mV	3V ~ 5.5V	0°C ~ 70°C	16-TSSOP	Tape & Reel	ROHS3
ICL3232CVZ	Renesas Electronics	RS232	2/2	250 kbps	300 mV	3V ~ 5.5V	0°C ~ 70°C	16-TSSOP	Tube	ROHS3
ICL3232CVZ-T	Renesas Electronics	RS232	2/2	250 kbps	300 mV	3V ~ 5.5V	0°C ~ 70°C	16-TSSOP	Cut Tape & Digi-Reel	ROHS3
ICL3232ECAZ	Renesas Electronics	RS232	2/2	250 kbps	500 mV	3V ~ 5.5V	0°C ~ 70°C	16-SSOP	Tube	ROHS3
ICL3232ECAZ-T	Renesas Electronics	RS232	2/2	250 kbps	500 mV	3V ~ 5.5V	0°C ~ 70°C	16-SSOP	Tape & Reel	ROHS3
ICL3232EIAZ	Renesas Electronics	RS232	2/2	250 kbps	500 mV	3V ~ 5.5V	-40°C ~ 85°C	16-SSOP	Tube	ROHS3
ICL3232EIAZ-T	Renesas Electronics	RS232	2/2	250 kbps	500 mV	3V ~ 5.5V	-40°C ~ 85°C	16-SSOP	Cut Tape & Digi-Reel	ROHS3
ICL3232EIV-16Z	Renesas Electronics	RS232	2/2	250 kbps	500 mV	3V ~ 5.5V	-40°C ~ 85°C	16-TSSOP	Tube	ROHS3
ICL3232IVZ	Renesas Electronics	RS232	2/2	250 kbps	300 mV	3V ~ 5.5V	-40°C ~ 85°C	16-TSSOP	Tube	ROHS3
ICL3232IVZ-T	Renesas Electronics	RS232	2/2	250 kbps	300 mV	3V ~ 5.5V	-40°C ~ 85°C	16-TSSOP	Cut Tape & Digi-Reel	ROHS3

Engineering Selection Recommendations

Direct Replacement (Identical Specifications) TRSF3232ECPWR from Texas Instruments provides identical electrical performance and package specifications to the SN75C3232EPWR. Both parts maintain 1 Mbps data rate, 300 mV receiver hysteresis, 16-TSSOP package format, and 0°C to 70°C operating temperature range. The primary difference is packaging format (Tape & Reel versus Cut Tape & Digi-Reel). Both parts are ROHS3 compliant with active product status.

Renesas ICL3232 Series Alternatives The Renesas ICL3232 family offers multiple configurations suitable for RS232 applications requiring 2/2 transceiver functionality and 3V to 5.5V supply voltage operation. Parts with 16-TSSOP package format (ICL3232CVZ, ICL3232CVZ-T, ICL3232EIV-16Z, ICL3232IVZ, ICL3232IVZ-T) maintain mechanical compatibility with the main part. Parts with 16-SSOP package format (ICL3232ECAZ, ICL3232ECAZ-T, ICL3232EIAZ, ICL3232EIAZ-T) require PCB layout adjustment due to different pin pitch and body width specifications.

Temperature Range Considerations Standard temperature range parts (ICL3232CVZ, ICL3232CVZ-T, ICL3232ECAZ, ICL3232ECAZ-T) operate from 0°C to 70°C, matching the SN75C3232EPWR specification. Extended temperature range parts (ICL3232EIAZ, ICL3232EIAZ-T, ICL3232EIV-16Z, ICL3232IVZ, ICL3232IVZ-T) operate from -40°C to 85°C and are suitable for applications requiring broader environmental performance.

Data Rate and Hysteresis Variations The SN75C3232EPWR operates at 1 Mbps with 300 mV receiver hysteresis. Renesas alternatives operate at 250 kbps, which is suitable for standard RS232 communication applications operating at lower baud rates. Receiver hysteresis variations (300 mV or 500 mV) affect noise immunity characteristics; 500 mV hysteresis provides enhanced noise rejection in electrically noisy environments.

All substitute parts maintain ROHS3 compliance, active product status, and surface mount mounting type, ensuring regulatory and manufacturing process compatibility.

Frequently Asked Questions (FAQ)

Q: Can TRSF3232ECPWR directly replace SN75C3232EPWR? A: Yes. TRSF3232ECPWR is a parametric equivalent with identical electrical specifications (1 Mbps data rate, 300 mV hysteresis, 2/2 transceiver configuration) and package format (16-TSSOP). The only difference is packaging type (Tape & Reel versus Cut Tape & Digi-Reel), which does not affect circuit performance.

Q: What are the key differences between 16-TSSOP and 16-SSOP packages? A: 16-TSSOP has a 0.173" body width (4.40mm), while 16-SSOP has a 0.209" body width (5.30mm). These are different package outlines requiring different PCB footprints. Pin pitch and lead spacing also differ. Parts must be selected based on existing PCB design specifications.

Q: Are Renesas ICL3232 parts compatible with the SN75C3232EPWR? A: Renesas ICL3232 parts maintain RS232 protocol compliance, 2/2 transceiver configuration, and 3V to 5.5V supply voltage range. However, they operate at 250 kbps instead of 1 Mbps. For applications using standard RS232 baud rates (up to 115.2 kbps), this reduced data rate specification does not impact functionality. Package format must match PCB design requirements.

Q: What is the significance of receiver hysteresis specifications? A: Receiver hysteresis determines the voltage difference between input switching thresholds, affecting noise immunity. The SN75C3232EPWR specifies 300 mV hysteresis. Renesas alternatives offer 300 mV or 500 mV options. Higher hysteresis (500 mV) provides better noise rejection in electrically noisy environments but may reduce sensitivity to weak input signals.

Q: Which substitute part offers the broadest operating temperature range? A: ICL3232EIAZ, ICL3232EIAZ-T, ICL3232EIV-16Z, ICL3232IVZ, and ICL3232IVZ-T operate from -40°C to 85°C, compared to the SN75C3232EPWR specification of 0°C to 70°C. Extended temperature range parts are suitable for industrial and automotive applications requiring operation in extreme environments.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance status, ensuring compatibility with regulatory requirements and manufacturing processes equivalent to the SN75C3232EPWR.

Q: What packaging options are available for each substitute part? A: Substitute parts are available in multiple packaging formats: Tube, Cut Tape & Digi-Reel, and Tape & Reel. Packaging selection depends on manufacturing process requirements and component handling specifications. Electrical performance is identical across all packaging options for the same part number.

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