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SP3232EEY-L RS232 Transceiver: Equivalent & Substitute Parts
Part Overview
The SP3232EEY-L is a full-duplex RS232 transceiver manufactured by MaxLinear, Inc., designed for serial communication applications requiring 2 drivers and 2 receivers in a 16-TSSOP surface mount package. This active product operates across a 3V to 5.5V supply range with a maximum data rate of 235 Kbps and is RoHS compliant with MSL 1 rating. Substitute parts are identified when design requirements necessitate alternative sourcing, higher data rates, different packaging formats, or enhanced availability from alternative manufacturers while maintaining electrical and mechanical compatibility.
Substiute Parts
Key Parameters
| Parameter | SP3232EEY-L |
|---|---|
| Manufacturer | MaxLinear, Inc. |
| Protocol | RS232 |
| Drivers/Receivers | 2/2 |
| Duplex | Full |
| Data Rate | 235 Kbps |
| Supply Voltage | 3V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C |
| Package | 16-TSSOP (0.173", 4.40mm Width) |
| Mounting Type | Surface Mount |
| RoHS Status | RoHS Compliant |
| MSL Rating | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility is determined by strict adherence to the following parameters:
- Protocol: RS232 (mandatory match)
- Configuration: 2 drivers / 2 receivers (mandatory match)
- Duplex Mode: Full (mandatory match)
- Package: 16-TSSOP form factor (mandatory match)
- Mounting Type: Surface Mount (mandatory match)
- Supply Voltage Range: Minimum 3V support required
- Operating Temperature: Minimum -40°C to 85°C coverage required
- RoHS Compliance: Active product status with current compliance certification
Substitute parts may vary in receiver hysteresis, data rate, and specific temperature ranges provided the above mandatory parameters are satisfied. Packaging format variations (Tube, Cut Tape, Tape & Reel) are interchangeable for the same electrical device.
Parameter Comparison
| Part Number | Manufacturer | Drivers/Receivers | Data Rate | Supply Voltage | Operating Temp | Receiver Hysteresis | Package Type | RoHS Status |
|---|---|---|---|---|---|---|---|---|
| SP3232EEY-L | MaxLinear, Inc. | 2/2 | 235 Kbps | 3V ~ 5.5V | -40°C ~ 85°C | 300 mV | 16-TSSOP | RoHS Compliant |
| ST3232EBTR | STMicroelectronics | 2/2 | 250 Kbps | 3V ~ 5.5V | -40°C ~ 85°C | 500 mV | 16-TSSOP | ROHS3 Compliant |
| ADM202EARUZ-REEL | Analog Devices Inc. | 2/2 | 230 Kbps | 4.5V ~ 5.5V | -40°C ~ 85°C | 650 mV | 16-TSSOP | ROHS3 Compliant |
| ADM202EARUZ-REEL7 | Analog Devices Inc. | 2/2 | 230 Kbps | 4.5V ~ 5.5V | -40°C ~ 85°C | 650 mV | 16-TSSOP | ROHS3 Compliant |
| ADM3202ARUZ | Analog Devices Inc. | 2/2 | 460 Kbps | 3V ~ 5.5V | -40°C ~ 85°C | 400 mV | 16-TSSOP | ROHS3 Compliant |
| ADM3202ARUZ-REEL | Analog Devices Inc. | 2/2 | 460 Kbps | 3V ~ 5.5V | -40°C ~ 85°C | 400 mV | 16-TSSOP | ROHS3 Compliant |
| ADM3202ARUZ-REEL7 | Analog Devices Inc. | 2/2 | 460 Kbps | 3V ~ 5.5V | -40°C ~ 85°C | 400 mV | 16-TSSOP | ROHS3 Compliant |
| ADM3232EARUZ | Analog Devices Inc. | 2/2 | 460 Kbps | 3V ~ 5.5V | -40°C ~ 85°C | 500 mV | 16-TSSOP | ROHS3 Compliant |
| ADM3232EARUZ-REEL7 | Analog Devices Inc. | 2/2 | 460 Kbps | 3V ~ 5.5V | -40°C ~ 85°C | 500 mV | 16-TSSOP | ROHS3 Compliant |
| ICL3232CVZ | Renesas Electronics Corporation | 2/2 | 250 Kbps | 3V ~ 5.5V | 0°C ~ 70°C | 300 mV | 16-TSSOP | ROHS3 Compliant |
| ICL3232CVZ-T | Renesas Electronics Corporation | 2/2 | 250 Kbps | 3V ~ 5.5V | 0°C ~ 70°C | 300 mV | 16-TSSOP | ROHS3 Compliant |
Engineering Selection Recommendations
All listed substitute parts maintain active product status with current RoHS3 compliance certification and REACH unaffected status where applicable. Selection between substitutes depends on specific application requirements:
ST3232EBTR from STMicroelectronics provides direct compatibility with identical supply voltage range and temperature coverage, with marginally higher data rate (250 Kbps) and increased receiver hysteresis (500 mV).
ADM202EARUZ and ADM202EARUZ-REEL7 from Analog Devices Inc. operate within a narrower supply voltage range (4.5V ~ 5.5V) and are suitable only for applications not requiring 3V operation. Data rate remains comparable to the main part at 230 Kbps.
ADM3202ARUZ, ADM3202ARUZ-REEL, and ADM3202ARUZ-REEL7 from Analog Devices Inc. support the full 3V ~ 5.5V supply range with doubled data rate capability (460 Kbps) and are available in high inventory quantities.
ADM3232EARUZ and ADM3232EARUZ-REEL7 from Analog Devices Inc. combine full supply voltage compatibility (3V ~ 5.5V) with enhanced data rate (460 Kbps) and moderate receiver hysteresis (500 mV).
ICL3232CVZ and ICL3232CVZ-T from Renesas Electronics Corporation operate within a reduced temperature range (0°C ~ 70°C) and are suitable only for applications not requiring -40°C operation. MSL rating is 3 (168 Hours) compared to MSL 1 for the main part.
Frequently Asked Questions (FAQ)
Q: Can I substitute the SP3232EEY-L with any of these parts without circuit modification?
A: Substitution is valid only when the application requirements permit the specific electrical parameters of the substitute part. All listed parts share identical RS232 protocol, 2/2 driver/receiver configuration, full-duplex operation, and 16-TSSOP package geometry. However, verify that your circuit design accommodates the substitute part's specific supply voltage range, operating temperature range, and receiver hysteresis characteristics.
Q: What is the difference between packaging formats (Tube, Cut Tape, Tape & Reel)?
A: Packaging format refers to the physical delivery and handling method for surface mount components. Tube packaging is suitable for manual assembly or small-volume production. Cut Tape (CT) and Digi-Reel formats are optimized for automated pick-and-place assembly. The electrical device and performance characteristics remain identical across all packaging formats for the same part number base.
Q: Why do some substitute parts have higher data rates?
A: ADM3202 and ADM3232 series devices support 460 Kbps data rate compared to 235 Kbps for the SP3232EEY-L. These parts are backward compatible and will operate correctly in applications designed for lower data rates. Higher data rate capability does not affect performance in lower-speed applications.
Q: Are there supply voltage compatibility concerns?
A: The SP3232EEY-L operates from 3V to 5.5V. ADM202 series parts operate from 4.5V to 5.5V and are not suitable for 3V applications. ICL3232 parts support 3V to 5.5V but operate only to 70°C maximum, limiting use in extended temperature applications. Verify your circuit's supply voltage and temperature requirements before substitution.
Q: What does receiver hysteresis mean for substitution?
A: Receiver hysteresis is the voltage difference between the rising and falling threshold levels of the RS232 receiver input. The SP3232EEY-L has 300 mV hysteresis. Substitute parts range from 300 mV to 650 mV. Higher hysteresis provides greater noise immunity but may affect timing-sensitive applications. Verify compatibility with your signal characteristics.
Q: Can I use ICL3232CVZ if my application requires -40°C operation?
A: No. ICL3232CVZ operates from 0°C to 70°C and is not rated for -40°C operation. Use only parts with -40°C minimum operating temperature for extended temperature range applications.
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