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TRS3232CPWRG4 Equivalent & Substitute Parts
Part Overview
The TRS3232CPWRG4 is a 2/2 full-duplex RS232 transceiver IC manufactured by Texas Instruments in a 16-TSSOP surface mount package. This part is classified as obsolete, with 1017 units currently in stock. The device operates across a 3V to 5.5V supply range and supports data rates up to 250 kbps with a receiver hysteresis of 300 mV. Due to its obsolete status, identifying equivalent and substitute parts is essential for design continuity and long-term component availability.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | TRS3232CPWRG4 |
| Manufacturer | Texas Instruments |
| Type | Transceiver |
| Protocol | RS232 |
| Number of Drivers/Receivers | 2/2 |
| Duplex | Full |
| Data Rate | 250 kbps |
| Voltage - Supply | 3V ~ 5.5V |
| Operating Temperature | 0°C ~ 70°C |
| Package / Case | 16-TSSOP (0.173", 4.40mm Width) |
| Mounting Type | Surface Mount |
| Receiver Hysteresis | 300 mV |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution eligibility for the TRS3232CPWRG4 is determined by the following critical parameters:
Mandatory Matching Parameters:
- Protocol: RS232
- Number of Drivers/Receivers: 2/2
- Duplex: Full
- Data Rate: 250 kbps
- Voltage - Supply: 3V ~ 5.5V
- Package / Case: 16-TSSOP (0.173", 4.40mm Width)
- Mounting Type: Surface Mount
- RoHS Status: ROHS3 Compliant
- Moisture Sensitivity Level: 1 (Unlimited)
Allowable Variation Parameters:
- Operating Temperature: May extend beyond 0°C ~ 70°C
- Receiver Hysteresis: May vary (300 mV or 500 mV acceptable)
- Product Status: Active or Discontinued at DiGi Electronics preferred over Obsolete
- Manufacturer: Alternative manufacturers acceptable if all mandatory parameters match
Substitute parts are grouped into three categories: Direct Manufacturer Equivalents (same base product line with different packaging or temperature grades), Parametric Equivalents (identical electrical specifications from the same manufacturer), and Upgrade Options (enhanced specifications with extended temperature ranges or improved receiver hysteresis from alternative manufacturers).
Parameter Comparison
| Part Number | Manufacturer | Product Status | Operating Temperature | Receiver Hysteresis | Package | Inventory |
|---|---|---|---|---|---|---|
| TRS3232CPWRG4 | Texas Instruments | Obsolete | 0°C ~ 70°C | 300 mV | 16-TSSOP | 1017 Pcs |
| MAX3232IPWR | Texas Instruments | Active | -40°C ~ 85°C | 300 mV | 16-TSSOP | 71800 Pcs |
| TRS3232ECDWR | Texas Instruments | Active | 0°C ~ 70°C | 300 mV | 16-SOIC | 2419 Pcs |
| MAX3232CPWR | Texas Instruments | Active | 0°C ~ 70°C | 300 mV | 16-TSSOP | 25200 Pcs |
| MAX3232CPWRG4 | Texas Instruments | Discontinued at DiGi Electronics | 0°C ~ 70°C | 300 mV | 16-TSSOP | 3100 Pcs |
| MAX3232ECPWR | Texas Instruments | Active | 0°C ~ 70°C | 300 mV | 16-TSSOP | 75100 Pcs |
| TRS3232ECPWR | Texas Instruments | Active | 0°C ~ 70°C | 300 mV | 16-TSSOP | 75750 Pcs |
| MAX3232EEUE+ | Analog Devices Inc./Maxim Integrated | Active | -40°C ~ 85°C | 500 mV | 16-TSSOP | 2100 Pcs |
| MAX3232EEUE+T | Analog Devices Inc./Maxim Integrated | Active | -40°C ~ 85°C | 500 mV | 16-TSSOP | 30300 Pcs |
| SP3232EBEY-L/TR | MaxLinear, Inc. | Active | -40°C ~ 85°C | 300 mV | 16-TSSOP | 30194 Pcs |
| ST3232EBTR | STMicroelectronics | Active | -40°C ~ 85°C | 500 mV | 16-TSSOP | 129821 Pcs |
Engineering Selection Recommendations
Direct Manufacturer Equivalents (Texas Instruments):
MAX3232CPWR and TRS3232ECPWR are the primary substitutes, offering identical electrical specifications and 16-TSSOP packaging with active product status. Both maintain the 0°C to 70°C operating temperature range and 300 mV receiver hysteresis. TRS3232ECPWR provides the highest inventory availability at 75,750 units. MAX3232CPWR offers 25,200 units with equivalent specifications.
MAX3232IPWR extends the operating temperature to -40°C to 85°C while maintaining all other parameters, providing enhanced thermal performance for applications requiring extended temperature operation.
TRS3232ECDWR is available in 16-SOIC packaging as an alternative for designs requiring a larger footprint, with 2,419 units in stock and identical electrical specifications.
Parametric Equivalents (Texas Instruments):
MAX3232ECPWR and MAX3232CPWRG4 provide parametric equivalence with identical electrical specifications. MAX3232ECPWR is active with 75,100 units available. MAX3232CPWRG4 is discontinued at DiGi Electronics with 3,100 units remaining.
Upgrade Options (Alternative Manufacturers):
MAX3232EEUE+T (Analog Devices Inc./Maxim Integrated) offers extended temperature range (-40°C to 85°C) with 500 mV receiver hysteresis and 30,300 units in stock. This part provides enhanced noise immunity compared to the original 300 mV specification.
SP3232EBEY-L/TR (MaxLinear, Inc.) maintains 300 mV receiver hysteresis with extended temperature range (-40°C to 85°C) and 30,194 units available.
ST3232EBTR (STMicroelectronics) provides the highest inventory availability at 129,821 units with extended temperature range (-40°C to 85°C) and 500 mV receiver hysteresis.
All substitute parts maintain ROHS3 compliance, MSL Level 1 rating, and identical supply voltage specifications.
Frequently Asked Questions (FAQ)
Q: Can I use MAX3232IPWR as a direct replacement for TRS3232CPWRG4?
A: Yes. MAX3232IPWR matches all mandatory parameters including RS232 protocol, 2/2 driver/receiver configuration, full duplex operation, 250 kbps data rate, 3V to 5.5V supply voltage, 16-TSSOP packaging, and surface mount mounting type. The extended operating temperature range (-40°C to 85°C) provides additional thermal margin beyond the original 0°C to 70°C specification.
Q: What is the difference between parts with 300 mV and 500 mV receiver hysteresis?
A: Receiver hysteresis determines the voltage difference required between the rising and falling threshold levels. Higher hysteresis (500 mV) provides improved noise immunity in electrically noisy environments. Lower hysteresis (300 mV) allows faster signal transitions. Both values are acceptable substitutes for the TRS3232CPWRG4 in standard RS232 applications.
Q: Why is TRS3232ECDWR listed as a substitute if it uses 16-SOIC packaging instead of 16-TSSOP?
A: TRS3232ECDWR is included as a package alternative for designs that can accommodate the larger 16-SOIC footprint (0.295", 7.50mm width versus 0.173", 4.40mm width for 16-TSSOP). All electrical specifications remain identical. This option is suitable only if PCB layout permits the larger package.
Q: Which substitute offers the best long-term availability?
A: ST3232EBTR from STMicroelectronics provides the highest inventory level at 129,821 units with active product status. TRS3232ECPWR and MAX3232ECPWR from Texas Instruments also offer strong availability at 75,750 and 75,100 units respectively.
Q: Are all substitute parts RoHS3 compliant?
A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating, matching the original TRS3232CPWRG4 specifications.
Q: Can I use parts from different manufacturers interchangeably?
A: Yes, provided all mandatory electrical and mechanical parameters match. MAX3232EEUE+T (Analog Devices), SP3232EBEY-L/TR (MaxLinear), and ST3232EBTR (STMicroelectronics) are functionally equivalent to the TRS3232CPWRG4 for RS232 transceiver applications. Verify pinout compatibility and any manufacturer-specific application notes before implementation.
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