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TRSF3221IPWRG4 RS232 Transceiver Equivalent & Substitute Parts
Part Overview
The TRSF3221IPWRG4 is a full-duplex RS232 transceiver manufactured by Texas Instruments, housed in a 16-TSSOP surface mount package. This part operates across a 3V to 5.5V supply range with a 1 Mbps data rate and 500 mV receiver hysteresis. The device is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | TRSF3221IPWRG4 |
| Manufacturer | Texas Instruments |
| Type | Transceiver |
| Protocol | RS232 |
| Number of Drivers/Receivers | 1/1 |
| Duplex | Full |
| Data Rate | 1 Mbps |
| Voltage - Supply | 3V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C |
| Receiver Hysteresis | 500 mV |
| Package / Case | 16-TSSOP (0.173", 4.40mm Width) |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution for the TRSF3221IPWRG4 is determined by strict equivalence across the following critical parameters:
- Protocol: RS232
- Number of Drivers/Receivers: 1/1
- Duplex: Full
- Data Rate: 1 Mbps
- Voltage - Supply: 3V ~ 5.5V
- Receiver Hysteresis: 500 mV
- Package / Case: 16-TSSOP (0.173", 4.40mm Width)
- Mounting Type: Surface Mount
All substitute parts listed maintain these core electrical and mechanical specifications. Variations in operating temperature range, product status, packaging format, and MSL rating are noted but do not preclude functional substitution when application requirements are met.
Parameter Comparison
| Part Number | Manufacturer | Product Status | Operating Temperature | Voltage - Supply | Data Rate | Package / Case | MSL | Inventory (Pcs) |
|---|---|---|---|---|---|---|---|---|
| TRSF3221IPWRG4 | Texas Instruments | Obsolete | -40°C ~ 85°C | 3V ~ 5.5V | 1 Mbps | 16-TSSOP | 1 | 721 |
| TRSF3221ECPWR | Texas Instruments | Active | 0°C ~ 70°C | 3V ~ 5.5V | 1 Mbps | 16-TSSOP | 1 | 8083 |
| SN65C3221EPWR | Texas Instruments | Active | -40°C ~ 85°C | 3V ~ 5.5V | 1 Mbps | 16-TSSOP | 1 | 3300 |
| SN65C3221IPWRQ1 | Texas Instruments | Active | -40°C ~ 85°C | 3V ~ 5.5V | 1 Mbps | 16-TSSOP | 2 | 3356 |
| SN65C3221PWR | Texas Instruments | Active | -40°C ~ 85°C | 3V ~ 5.5V | 1 Mbps | 16-TSSOP | 1 | 2547 |
| TRSF3221EIPWR | Texas Instruments | Active | -40°C ~ 85°C | 3V ~ 5.5V | 1 Mbps | 16-TSSOP | 1 | 18739 |
| MAX3227EEUE+T | Analog Devices Inc./Maxim Integrated | Active | -40°C ~ 85°C | 3V ~ 5.5V | 1 Mbps | 16-TSSOP | 1 | 958 |
Engineering Selection Recommendations
Primary Substitutes (Texas Instruments, Active Status):
SN65C3221EPWR, SN65C3221PWR, and TRSF3221EIPWR are direct parametric equivalents with active product status and full operating temperature range (-40°C ~ 85°C) matching the original part. These are preferred for applications requiring extended temperature operation.
Automotive-Grade Alternative:
SN65C3221IPWRQ1 is qualified to AEC-Q100 automotive standards with active status. MSL rating is 2 (1 Year) versus the original MSL 1. This part is suitable for automotive applications requiring extended temperature range.
Commercial Temperature Range:
TRSF3221ECPWR operates across 0°C ~ 70°C and is the manufacturer-recommended substitute. This part is appropriate for commercial-grade applications within the specified temperature window.
Cross-Manufacturer Alternative:
MAX3227EEUE+T from Analog Devices Inc./Maxim Integrated maintains full parametric equivalence with active status and extended temperature range. This option provides supply chain diversification.
All substitute parts are ROHS3 compliant and REACH unaffected, matching the original part's regulatory status.
Frequently Asked Questions (FAQ)
Q: Can TRSF3221ECPWR replace TRSF3221IPWRG4 in all applications?
A: TRSF3221ECPWR is a functional substitute for applications operating within 0°C ~ 70°C. Applications requiring the full -40°C ~ 85°C temperature range must use SN65C3221EPWR, SN65C3221PWR, TRSF3221EIPWR, or MAX3227EEUE+T.
Q: What is the difference between SN65C3221IPWRQ1 and other SN65C3221 variants?
A: SN65C3221IPWRQ1 carries AEC-Q100 automotive qualification and has MSL rating of 2 (1 Year) versus MSL 1 (Unlimited) for other variants. All maintain identical electrical parameters and operating temperature range.
Q: Are all substitute parts pin-compatible with the original TRSF3221IPWRG4?
A: All substitute parts use the 16-TSSOP package with identical pinout. Pin compatibility is confirmed across all listed alternatives.
Q: What packaging formats are available for these substitutes?
A: TRSF3221ECPWR is supplied in Tape & Reel (TR) format. SN65C3221EPWR, SN65C3221IPWRQ1, and TRSF3221EIPWR are available in Cut Tape (CT) & Digi-Reel format. SN65C3221PWR is supplied in Tape & Reel (TR) format.
Q: Can MAX3227EEUE+T be used as a direct replacement?
A: MAX3227EEUE+T maintains all critical electrical parameters and operating temperature range. It is a cross-manufacturer alternative suitable for applications where supply chain diversification is required.
Q: Which substitute has the highest inventory availability?
A: TRSF3221EIPWR has the highest inventory at 18,739 pieces, followed by TRSF3221ECPWR at 8,083 pieces.
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