Request Quote
(Ships tomorrow)
SP487ET-L Equivalent & Substitute Parts
Part Overview
The SP487ET-L is a 4/0 Driver RS422/RS485 interface IC manufactured by MaxLinear, Inc., housed in a 16-SOIC package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs. The SP487ET-L operates across a supply voltage range of 4.75V to 5.25V with a data rate of 10Mbps and supports operating temperatures from -40°C to 85°C. Substitution is required due to product discontinuation while maintaining electrical and mechanical compatibility.
Substiute Parts
Key Parameters
| Parameter | SP487ET-L |
|---|---|
| Manufacturer | MaxLinear, Inc. |
| Type | Driver |
| Protocol | RS422, RS485 |
| Number of Drivers/Receivers | 4/0 |
| Data Rate | 10Mbps |
| Voltage - Supply | 4.75V ~ 5.25V |
| Operating Temperature | -40°C ~ 85°C |
| Package / Case | 16-SOIC (0.295", 7.50mm Width) |
| Mounting Type | Surface Mount |
| Product Status | Obsolete |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
Substitute Part Grouping Explanation
Substitution eligibility for the SP487ET-L is determined by the following critical parameters:
Protocol compatibility: All substitute parts must support RS422 and RS485 protocols.
Driver/Receiver configuration: All substitutes maintain the 4/0 driver/receiver architecture.
Package and mounting: All substitutes use the 16-SOIC surface mount package with 0.295" width (7.50mm).
Voltage supply range: All substitutes operate within the 4.75V to 5.25V supply voltage specification.
Electrical interface: All parts function as interface drivers for serial communication applications.
The substitute parts are grouped into two categories based on operating temperature range and product status:
Category 1 (Extended Temperature, Active Status): LTC487ISW#PBF, LTC487ISW#TRPBF, and SN65LBC174A16DWR support the full -40°C to 85°C operating temperature range matching the original SP487ET-L specification.
Category 2 (Commercial Temperature, Active Status): SP487CT-L/TR, LTC487CSW#PBF, and LTC487CSW#TRPBF operate within the 0°C to 70°C temperature range, suitable for commercial applications.
Parameter Comparison
| Parameter | SP487ET-L | SP487CT-L/TR | LTC487CSW#PBF | LTC487CSW#TRPBF | LTC487ISW#PBF | LTC487ISW#TRPBF | SN65LBC174A16DWR |
|---|---|---|---|---|---|---|---|
| Manufacturer | MaxLinear, Inc. | MaxLinear, Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Texas Instruments |
| Protocol | RS422, RS485 | RS422, RS485 | RS422, RS485 | RS422, RS485 | RS422, RS485 | RS422, RS485 | RS422, RS485 |
| Number of Drivers/Receivers | 4/0 | 4/0 | 4/0 | 4/0 | 4/0 | 4/0 | 4/0 |
| Data Rate | 10Mbps | 10Mbps | — | — | — | — | 30Mbps |
| Voltage - Supply | 4.75V ~ 5.25V | 4.75V ~ 5.25V | 4.75V ~ 5.25V | 4.75V ~ 5.25V | 4.75V ~ 5.25V | 4.75V ~ 5.25V | 4.75V ~ 5.25V |
| Operating Temperature | -40°C ~ 85°C | 0°C ~ 70°C | 0°C ~ 70°C | 0°C ~ 70°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C |
| Package / Case | 16-SOIC (0.295", 7.50mm Width) | 16-SOIC (0.295", 7.50mm Width) | 16-SOIC (0.295", 7.50mm Width) | 16-SOIC (0.295", 7.50mm Width) | 16-SOIC (0.295", 7.50mm Width) | 16-SOIC (0.295", 7.50mm Width) | 16-SOIC (0.295", 7.50mm Width) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Product Status | Obsolete | Active | Active | Active | Active | Active | Active |
| RoHS Status | — | RoHS Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) | 3 (168 Hours) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
All substitute parts listed maintain full electrical and mechanical compatibility with the SP487ET-L through identical protocol support, driver/receiver configuration, package geometry, and supply voltage specifications.
For applications requiring extended temperature operation from -40°C to 85°C, select from: LTC487ISW#PBF, LTC487ISW#TRPBF, or SN65LBC174A16DWR. These parts match the original temperature specification and are all active products with current manufacturing support.
For commercial temperature applications operating within 0°C to 70°C, SP487CT-L/TR, LTC487CSW#PBF, or LTC487CSW#TRPBF are suitable alternatives. SP487CT-L/TR maintains the MaxLinear manufacturer lineage as an active product variant.
All substitute parts carry active product status, ensuring long-term availability and supply chain stability compared to the obsolete SP487ET-L.
Regarding compliance: SP487CT-L/TR is RoHS Compliant. LTC487CSW#PBF, LTC487CSW#TRPBF, LTC487ISW#PBF, LTC487ISW#TRPBF, and SN65LBC174A16DWR are all ROHS3 Compliant with REACH Unaffected status.
Moisture sensitivity has improved across all active substitutes. The SP487ET-L specifies MSL 3 (168 Hours), while all substitute parts specify MSL 1 (Unlimited), providing superior handling and storage characteristics.
Frequently Asked Questions (FAQ)
Q: Can I directly replace SP487ET-L with any of these substitute parts?
A: Yes. All listed substitute parts share identical protocol support (RS422/RS485), driver/receiver configuration (4/0), package type (16-SOIC surface mount), and supply voltage range (4.75V to 5.25V). Direct PCB-level substitution is supported without circuit modification.
Q: What is the difference between the temperature-rated variants?
A: Extended temperature parts (LTC487ISW#PBF, LTC487ISW#TRPBF, SN65LBC174A16DWR) operate from -40°C to 85°C, matching the original SP487ET-L specification. Commercial temperature parts (SP487CT-L/TR, LTC487CSW#PBF, LTC487CSW#TRPBF) operate from 0°C to 70°C. Select based on your application's thermal requirements.
Q: What packaging options are available?
A: Tube packaging is available for LTC487CSW#PBF and LTC487ISW#PBF. Tape & Reel (TR) packaging is available for SP487CT-L/TR, LTC487CSW#TRPBF, and LTC487ISW#TRPBF. SN65LBC174A16DWR is supplied without specified packaging designation. Select based on your procurement and assembly requirements.
Q: Are all substitutes RoHS compliant?
A: Yes. SP487CT-L/TR is RoHS Compliant. LTC487CSW#PBF, LTC487CSW#TRPBF, LTC487ISW#PBF, LTC487ISW#TRPBF, and SN65LBC174A16DWR are ROHS3 Compliant, meeting current environmental regulations.
Q: What is the advantage of MSL 1 (Unlimited) over MSL 3?
A: MSL 1 (Unlimited) moisture sensitivity allows indefinite shelf storage without baking requirements. MSL 3 (168 Hours) requires component baking before reflow if storage exceeds 168 hours in high-humidity conditions. All active substitutes offer superior MSL ratings.
Q: Which substitute offers the highest data rate?
A: SN65LBC174A16DWR supports 30Mbps data rate, exceeding the original SP487ET-L specification of 10Mbps. This provides additional performance headroom for future system upgrades while maintaining full backward compatibility.
Q: Are there any differences in receiver hysteresis specifications?
A: SN65LBC174A16DWR specifies 40 mV receiver hysteresis. This specification is not provided for other parts in the comparison set. Hysteresis affects noise immunity in RS422/RS485 bus environments.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts