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XR3077XID-F Equivalent & Substitute Parts
Part Overview
The XR3077XID-F is a 1/1 full-duplex RS422/RS485 transceiver IC manufactured by MaxLinear, Inc., housed in an 8-SOIC surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support, redesigns, and new production runs. The part operates across a 3V to 3.6V supply range with a 20 Mbps data rate and 25 mV receiver hysteresis, suitable for industrial communication applications requiring reliable differential signaling.
Substiute Parts
Key Parameters
| Parameter | XR3077XID-F |
|---|---|
| Manufacturer | MaxLinear, Inc. |
| Type | Transceiver |
| Protocol | RS422, RS485 |
| Number of Drivers/Receivers | 1/1 |
| Duplex | Full |
| Data Rate | 20 Mbps |
| Voltage - Supply | 3V ~ 3.6V |
| Receiver Hysteresis | 25 mV |
| Operating Temperature | -40°C ~ 85°C |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount |
| Product Status | Obsolete |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution for the XR3077XID-F is determined by strict alignment of the following critical parameters:
- Protocol support: RS422 and RS485 full-duplex operation
- Driver/Receiver configuration: 1/1 topology
- Supply voltage range: 3V to 3.6V compatibility
- Package form factor: 8-SOIC (0.154", 3.90mm Width)
- Data rate capability: minimum 20 Mbps
- Receiver hysteresis: 25 mV specification
- Surface mount technology
Substitute parts are grouped into two categories based on operating temperature range:
Category A (Commercial Temperature Range): LTC2851CS8#PBF and LTC2851CS8#TRPBF operate from 0°C to 70°C, suitable for controlled environments where the narrower temperature range is acceptable.
Category B (Extended/Industrial Temperature Range): LTC2851HS8#PBF, LTC2851HS8#TRPBF, LTC2851IS8#TRPBF, and LTC2851MPS8#PBF operate from -40°C to 85°C or -40°C to 125°C, directly matching or exceeding the original part's thermal specifications.
Category C (Reduced Data Rate Alternatives): MAX3071EASA+, MAX3071EESA+, MAX3071EESA+T, and MAX3074EASA+ operate at lower data rates (250 kbps to 500 kbps) with higher receiver hysteresis (100 mV), suitable only for applications where reduced bandwidth is acceptable.
Parameter Comparison
| Part Number | Manufacturer | Protocol | Drivers/Receivers | Data Rate | Supply Voltage | Receiver Hysteresis | Operating Temperature | Package | Product Status | Packaging Type |
|---|---|---|---|---|---|---|---|---|---|---|
| XR3077XID-F | MaxLinear, Inc. | RS422, RS485 | 1/1 | 20 Mbps | 3V ~ 3.6V | 25 mV | -40°C ~ 85°C | 8-SOIC | Obsolete | Tube |
| LTC2851CS8#PBF | Analog Devices Inc. | RS422, RS485 | 1/1 | 20 Mbps | 3V ~ 3.6V | 25 mV | 0°C ~ 70°C | 8-SOIC | Active | Tube |
| LTC2851CS8#TRPBF | Analog Devices Inc. | RS422, RS485 | 1/1 | 20 Mbps | 3V ~ 3.6V | 25 mV | 0°C ~ 70°C | 8-SOIC | Active | Tape & Reel |
| LTC2851HS8#PBF | Analog Devices Inc. | RS422, RS485 | 1/1 | 20 Mbps | 3V ~ 3.6V | 25 mV | -40°C ~ 125°C | 8-SOIC | Active | Tube |
| LTC2851HS8#TRPBF | Analog Devices Inc. | RS422, RS485 | 1/1 | 20 Mbps | 3V ~ 3.6V | 25 mV | -40°C ~ 125°C | 8-SOIC | Active | Tape & Reel |
| LTC2851IS8#TRPBF | Analog Devices Inc. | RS422, RS485 | 1/1 | 20 Mbps | 3V ~ 3.6V | 25 mV | -40°C ~ 85°C | 8-SOIC | Active | Tape & Reel |
| LTC2851MPS8#PBF | Analog Devices Inc. | RS422, RS485 | 1/1 | 20 Mbps | 3V ~ 3.6V | 25 mV | -55°C ~ 125°C | 8-SOIC | Active | Tube |
| MAX3071EASA+ | Analog Devices Inc./Maxim Integrated | RS422, RS485 | 1/1 | 250 kbps | 3V ~ 3.6V | 100 mV | -40°C ~ 125°C | 8-SOIC | Active | Tube |
| MAX3071EESA+ | Analog Devices Inc./Maxim Integrated | RS422, RS485 | 1/1 | 250 kbps | 3V ~ 3.6V | 100 mV | -40°C ~ 85°C | 8-SOIC | Active | Tube |
| MAX3071EESA+T | Analog Devices Inc./Maxim Integrated | RS422, RS485 | 1/1 | 250 kbps | 3V ~ 3.6V | 100 mV | -40°C ~ 85°C | 8-SOIC | Active | Cut Tape & Digi-Reel |
| MAX3074EASA+ | Analog Devices Inc./Maxim Integrated | RS422, RS485 | 1/1 | 500 kbps | 3V ~ 3.6V | 100 mV | -40°C ~ 125°C | 8-SOIC | Active | Tube |
Engineering Selection Recommendations
For direct replacement of the obsolete XR3077XID-F in applications requiring the full 20 Mbps data rate and 25 mV receiver hysteresis, the LTC2851 series from Analog Devices Inc. provides the most compatible substitutes. All LTC2851 variants maintain identical electrical specifications while offering active product status and ROHS3 compliance.
Selection within the LTC2851 family depends on operating temperature requirements and packaging preference:
- LTC2851IS8#TRPBF is the closest functional equivalent, matching the original -40°C to 85°C temperature range with tape and reel packaging suitable for high-volume production.
- LTC2851HS8#TRPBF extends the upper temperature limit to 125°C, providing additional thermal margin for harsh environments.
- LTC2851MPS8#PBF offers the widest temperature range (-55°C to 125°C) for extreme operating conditions.
- LTC2851CS8#TRPBF is suitable only for controlled environments where the 0°C to 70°C commercial temperature range is acceptable.
The MAX3071 and MAX3074 series are not recommended as direct replacements due to significantly reduced data rate specifications (250 kbps and 500 kbps respectively) and increased receiver hysteresis (100 mV), which may cause signal integrity issues in applications designed for 20 Mbps operation.
Frequently Asked Questions (FAQ)
Q: Can LTC2851CS8#PBF replace XR3077XID-F in all applications?
A: LTC2851CS8#PBF is electrically compatible but operates only from 0°C to 70°C, compared to the original part's -40°C to 85°C range. Use this substitute only in applications where the narrower commercial temperature range is acceptable.
Q: What is the difference between LTC2851HS8#TRPBF and LTC2851IS8#TRPBF?
A: Both parts are identical in electrical performance and data rate. The primary difference is operating temperature: LTC2851HS8#TRPBF operates from -40°C to 125°C, while LTC2851IS8#TRPBF operates from -40°C to 85°C, matching the original XR3077XID-F specification.
Q: Why are MAX3071 and MAX3074 listed as substitutes if they have lower data rates?
A: These parts are listed based on the original manufacturer's substitute list but are not recommended for direct replacement. They operate at 250 kbps and 500 kbps respectively, far below the 20 Mbps requirement of the XR3077XID-F. Use these only if your application can tolerate reduced bandwidth.
Q: What does the packaging designation mean (Tube vs. Tape & Reel)?
A: Tube packaging is suitable for small-quantity orders and manual assembly. Tape & Reel packaging is optimized for automated pick-and-place assembly in high-volume production. Both formats contain identical components; the choice depends on manufacturing process requirements.
Q: Are all LTC2851 variants ROHS3 compliant?
A: Yes, all LTC2851 variants listed are ROHS3 compliant and REACH unaffected, meeting modern environmental and regulatory standards.
Q: Can I use LTC2851MPS8#PBF in place of LTC2851IS8#TRPBF?
A: Yes, LTC2851MPS8#PBF is a direct functional substitute with superior specifications. It operates from -55°C to 125°C, exceeding the -40°C to 85°C range of LTC2851IS8#TRPBF. The only difference is packaging format (Tube vs. Tape & Reel) and the extended lower temperature limit.
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