XR5488EID-F Equivalent & Substitute Parts

Part Overview

The XR5488EID-F is a half-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 substitute parts necessary for new designs and ongoing production support. The part operates across industrial temperature ranges (-40°C to 85°C) with a 52 Mbps data rate capability, serving as a critical interface component in serial communication systems requiring half-duplex transceiver functionality.

Key Parameters

Parameter	XR5488EID-F
Manufacturer	MaxLinear, Inc.
Type	Transceiver
Protocol	RS422, RS485
Duplex Configuration	Half
Number of Drivers/Receivers	1/1
Data Rate	52 Mbps
Receiver Hysteresis	25 mV
Supply Voltage Range	4.75V ~ 5.25V
Operating Temperature	-40°C ~ 85°C
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for the XR5488EID-F is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

Protocol: RS422/RS485 half-duplex transceiver
Duplex Configuration: Half-duplex only
Driver/Receiver Count: 1/1 configuration
Package Type: 8-SOIC surface mount form factor
Operating Temperature Range: -40°C to 85°C minimum
Supply Voltage: 4.75V to 5.25V nominal operation

Allowable Variation Parameters:

Data Rate: Minimum 52 Mbps (equal or higher acceptable)
Receiver Hysteresis: 20 mV to 60 mV range (functional tolerance)
Supply Voltage Range: May extend beyond 4.75V-5.25V if minimum/maximum bounds encompass the original specification

Substitute parts are grouped into two categories based on product status: active manufacturing parts (preferred for new designs) and obsolete alternatives (for legacy system support).

Parameter Comparison

Part Number	Manufacturer	Protocol	Data Rate	Receiver Hysteresis	Supply Voltage	Operating Temp	Package	Product Status
XR5488EID-F	MaxLinear, Inc.	RS422, RS485	52 Mbps	25 mV	4.75V ~ 5.25V	-40°C ~ 85°C	8-SOIC	Obsolete
ISL3158EIBZ	Renesas Electronics	RS422, RS485	20 Mbps	20 mV	4.5V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Active
ISL3158EIBZ-T	Renesas Electronics	RS422, RS485	20 Mbps	20 mV	4.5V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Active
LTC1685CS8#PBF	Analog Devices Inc.	RS422, RS485	52 Mbps	25 mV	4.75V ~ 5.25V	0°C ~ 70°C	8-SOIC	Active
LTC1685CS8#TRPBF	Analog Devices Inc.	RS422, RS485	52 Mbps	25 mV	4.75V ~ 5.25V	0°C ~ 70°C	8-SOIC	Active
MAX13488EESA+	Analog Devices Inc./Maxim Integrated	RS422, RS485	16 Mbps	25 mV	4.75V ~ 5.25V	-40°C ~ 85°C	8-SOIC	Active
MAX13488EESA+T	Analog Devices Inc./Maxim Integrated	RS422, RS485	16 Mbps	25 mV	4.75V ~ 5.25V	-40°C ~ 85°C	8-SOIC	Active
MAX14780EESA+	Analog Devices Inc./Maxim Integrated	RS422, RS485	20 Mbps	50 mV	4.5V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Active
MAX14780EESA+T	Analog Devices Inc./Maxim Integrated	RS422, RS485	20 Mbps	50 mV	4.5V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Active
SN65ALS176D	Texas Instruments	RS422, RS485	35 Mbps	60 mV	4.75V ~ 5.25V	-40°C ~ 85°C	8-SOIC	Obsolete
SN65ALS176DR	Texas Instruments	RS422, RS485	35 Mbps	60 mV	4.75V ~ 5.25V	-40°C ~ 85°C	8-SOIC	Active

Engineering Selection Recommendations

Primary Substitutes (Active Status, Full Temperature Range):

LTC1685CS8#PBF and LTC1685CS8#TRPBF from Analog Devices Inc. provide the closest electrical match to the XR5488EID-F, maintaining identical data rate (52 Mbps), receiver hysteresis (25 mV), and supply voltage specifications. Both parts are actively manufactured and RoHS3 compliant. The operating temperature range (0°C to 70°C) is narrower than the original specification; applications requiring full -40°C to 85°C operation should account for this limitation.

MAX13488EESA+ and MAX13488EESA+T from Analog Devices Inc./Maxim Integrated maintain the full industrial temperature range (-40°C to 85°C) and identical receiver hysteresis (25 mV). Data rate is reduced to 16 Mbps, which is acceptable for applications not requiring the full 52 Mbps bandwidth. Both variants are actively manufactured and RoHS3 compliant.

MAX14780EESA+ and MAX14780EESA+T from Analog Devices Inc./Maxim Integrated support the full industrial temperature range and extended supply voltage (4.5V to 5.5V). Data rate is 20 Mbps with 50 mV receiver hysteresis. Both are actively manufactured and RoHS3 compliant.

SN65ALS176DR from Texas Instruments is actively manufactured with full industrial temperature range support. Data rate is 35 Mbps with 60 mV receiver hysteresis, providing a mid-range performance option.

Secondary Substitutes (Active Status, Limited Temperature Range):

ISL3158EIBZ and ISL3158EIBZ-T from Renesas Electronics Corporation are actively manufactured with extended supply voltage range (4.5V to 5.5V) and full industrial temperature range. Data rate is 20 Mbps with 20 mV receiver hysteresis. RoHS3 compliance is confirmed.

Legacy Alternatives (Obsolete Status):

SN65ALS176D from Texas Instruments is obsolete but remains available in inventory. This part matches the full industrial temperature range and supply voltage of the original XR5488EID-F with 35 Mbps data rate and 60 mV receiver hysteresis.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with a lower data rate than the XR5488EID-F?

A: Yes. The XR5488EID-F operates at 52 Mbps maximum. Substitute parts with lower data rates (16 Mbps, 20 Mbps, or 35 Mbps) are functionally compatible if your application does not require the full 52 Mbps bandwidth. Verify your system's actual data rate requirements before selection.

Q: What is the significance of receiver hysteresis variation?

A: Receiver hysteresis affects noise immunity and signal detection thresholds. The XR5488EID-F specifies 25 mV. Substitutes range from 20 mV to 60 mV. Higher hysteresis (50 mV, 60 mV) provides greater noise immunity in electrically noisy environments. Lower hysteresis (20 mV) may offer faster response in clean signal conditions. Select based on your communication link characteristics.

Q: Why do some substitutes have narrower operating temperature ranges?

A: The LTC1685 series operates from 0°C to 70°C, which is narrower than the XR5488EID-F specification of -40°C to 85°C. If your application requires operation below 0°C or above 70°C, select alternatives with full -40°C to 85°C ranges such as MAX13488EESA+, MAX14780EESA+, or SN65ALS176DR.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts are RoHS3 compliant, meeting current environmental and hazardous substance restrictions.

Q: What is the difference between packaging variants like #PBF and #TRPBF?

A: #PBF indicates Tube packaging. #TRPBF indicates Cut Tape (CT) & Digi-Reel packaging. Both are equivalent parts with identical electrical specifications; packaging selection depends on your procurement and assembly requirements.

Q: Can I substitute an obsolete part with another obsolete part?

A: Obsolete parts (XR5488EID-F, SN65ALS176D) should be replaced with active manufacturing alternatives when possible to ensure long-term supply chain stability. Use obsolete substitutes only for legacy system maintenance where active alternatives are incompatible.

Q: Does supply voltage range variation affect compatibility?

A: The XR5488EID-F operates at 4.75V to 5.25V. Some substitutes extend this range to 4.5V to 5.5V, providing greater supply voltage tolerance. This is a beneficial variation that does not compromise compatibility. Verify your power supply specifications match the selected substitute's minimum and maximum voltage requirements.

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