SP211CA-L/TR RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The SP211CA-L/TR is a 4/5 full-duplex RS232 transceiver manufactured by MaxLinear, Inc., housed in a 28-SSOP surface mount package. This component is classified as obsolete, with 2200 units available in current inventory. Due to its obsolete status, equivalent and substitute parts from active manufacturers are necessary for new designs and long-term supply chain continuity. Substitute parts maintain functional compatibility through matching electrical specifications and identical package geometry.

Key Parameters

Parameter	SP211CA-L/TR
Manufacturer	MaxLinear, Inc.
Product Status	Obsolete
Type	Transceiver
Protocol	RS232
Number of Drivers/Receivers	4/5
Duplex	Full
Receiver Hysteresis	500 mV
Data Rate	120 Kbps
Voltage Supply	4.5V ~ 5.5V
Operating Temperature	0°C ~ 70°C
Package / Case	28-SSOP (0.209", 5.30mm Width)
Mounting Type	Surface Mount
Moisture Sensitivity Level (MSL)	2 (1 Year)

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following critical parameters:

Protocol: RS232 (all substitutes match)
Number of Drivers/Receivers: 4/5 (all substitutes match)
Duplex: Full (all substitutes match)
Package / Case: 28-SSOP (all substitutes match)
Voltage Supply: 4.5V ~ 5.5V (primary range; ADM241 variants operate at 4.75V ~ 5.25V, a subset)
Mounting Type: Surface Mount (all substitutes match)

Substitute parts are grouped into two categories based on operating temperature range and receiver hysteresis specifications:

Category A: Direct Functional Equivalents (0°C ~ 70°C Operating Temperature)

SP211ECA-L/TR (MaxLinear, Inc.) – Active status, 230 Kbps data rate
ADM241LJRSZ and ADM241LJRSZ-REEL (Analog Devices Inc.) – Active status, 120 Kbps data rate
HIN211ECAZ (Renesas Electronics Corporation) – Active status, 230 Kbps data rate

Category B: Extended Temperature Range Substitutes (-40°C ~ 85°C Operating Temperature)

ADM211ARSZ and ADM211ARSZ-REEL (Analog Devices Inc.)
ADM211EARSZ and ADM211EARSZ-REEL (Analog Devices Inc.)
ADM241LARSZ and ADM241LARSZ-REEL (Analog Devices Inc.)

Parameter Comparison

Part Number	Manufacturer	Product Status	Protocol	Drivers/Receivers	Duplex	Receiver Hysteresis	Data Rate	Voltage Supply	Operating Temperature	Package	MSL
SP211CA-L/TR	MaxLinear, Inc.	Obsolete	RS232	4/5	Full	500 mV	120 Kbps	4.5V ~ 5.5V	0°C ~ 70°C	28-SSOP	2 (1 Year)
SP211ECA-L/TR	MaxLinear, Inc.	Active	RS232	4/5	Full	500 mV	230 Kbps	4.5V ~ 5.5V	0°C ~ 70°C	28-SSOP	2 (1 Year)
ADM211ARSZ	Analog Devices Inc.	Active	RS232	4/5	Full	650 mV	120 Kbps	4.5V ~ 5.5V	-40°C ~ 85°C	28-SSOP	1 (Unlimited)
ADM211ARSZ-REEL	Analog Devices Inc.	Active	RS232	4/5	Full	650 mV	120 Kbps	4.5V ~ 5.5V	-40°C ~ 85°C	28-SSOP	1 (Unlimited)
ADM211EARSZ	Analog Devices Inc.	Active	RS232	4/5	Full	650 mV	120 Kbps	4.5V ~ 5.5V	-40°C ~ 85°C	28-SSOP	1 (Unlimited)
ADM211EARSZ-REEL	Analog Devices Inc.	Active	RS232	4/5	Full	650 mV	120 Kbps	4.5V ~ 5.5V	-40°C ~ 85°C	28-SSOP	1 (Unlimited)
ADM241LARSZ	Analog Devices Inc.	Active	RS232	4/5	Full	650 mV	120 Kbps	4.75V ~ 5.25V	-40°C ~ 85°C	28-SSOP	1 (Unlimited)
ADM241LARSZ-REEL	Analog Devices Inc.	Active	RS232	4/5	Full	650 mV	120 Kbps	4.75V ~ 5.25V	-40°C ~ 85°C	28-SSOP	1 (Unlimited)
ADM241LJRSZ	Analog Devices Inc.	Active	RS232	4/5	Full	650 mV	120 Kbps	4.75V ~ 5.25V	0°C ~ 70°C	28-SSOP	1 (Unlimited)
ADM241LJRSZ-REEL	Analog Devices Inc.	Active	RS232	4/5	Full	650 mV	120 Kbps	4.75V ~ 5.25V	0°C ~ 70°C	28-SSOP	1 (Unlimited)
HIN211ECAZ	Renesas Electronics Corporation	Active	RS232	4/5	Full	500 mV	230 Kbps	4.5V ~ 5.5V	0°C ~ 70°C	28-SSOP	3 (168 Hours)

Engineering Selection Recommendations

For applications requiring direct replacement of the obsolete SP211CA-L/TR within the original operating temperature range (0°C ~ 70°C), SP211ECA-L/TR from MaxLinear, Inc. is the primary equivalent. This part maintains identical electrical specifications and package geometry while offering active product status and higher data rate capability (230 Kbps versus 120 Kbps).

For applications requiring extended operating temperature range (-40°C ~ 85°C), the ADM211 and ADM241 series from Analog Devices Inc. provide active alternatives with ROHS3 compliance and unlimited MSL rating. The ADM241LJRSZ and ADM241LJRSZ-REEL variants maintain the original 0°C ~ 70°C temperature range while offering superior moisture sensitivity characteristics.

HIN211ECAZ from Renesas Electronics Corporation is suitable for 0°C ~ 70°C applications and matches the original receiver hysteresis specification (500 mV). All substitute parts carry ROHS3 compliance and EAR99 export classification, matching the original part's regulatory status.

Frequently Asked Questions (FAQ)

Q: Can ADM241LARSZ replace SP211CA-L/TR in a design operating at 0°C ~ 70°C?

A: ADM241LARSZ operates at -40°C ~ 85°C, which encompasses the 0°C ~ 70°C range. However, the voltage supply specification differs: ADM241LARSZ operates at 4.75V ~ 5.25V, while SP211CA-L/TR operates at 4.5V ~ 5.5V. Verify that your power supply design falls within the 4.75V ~ 5.25V window before selection.

Q: What is the difference between ADM241LJRSZ and ADM241LARSZ?

A: Both parts are from Analog Devices Inc. and share identical electrical specifications. The primary difference is operating temperature range: ADM241LJRSZ operates at 0°C ~ 70°C, while ADM241LARSZ operates at -40°C ~ 85°C. Select based on your application's thermal requirements.

Q: Are packaging variants (tube versus tape & reel) electrically equivalent?

A: Yes. Parts designated with "-REEL" suffix are supplied in tape & reel format for automated assembly, while non-suffixed variants are supplied in tube packaging. Electrical specifications and performance are identical; selection depends on assembly process requirements.

Q: Why does HIN211ECAZ have a higher MSL rating (3) compared to the original part (2)?

A: MSL rating indicates moisture sensitivity during storage. HIN211ECAZ (MSL 3, 168 Hours) requires more careful moisture control than SP211CA-L/TR (MSL 2, 1 Year). Verify that your storage and handling procedures accommodate the higher moisture sensitivity requirement.

Q: Can I use SP211ECA-L/TR as a direct drop-in replacement?

A: SP211ECA-L/TR is the closest functional equivalent, maintaining identical package, voltage supply range, operating temperature, and receiver hysteresis specifications. The higher data rate (230 Kbps versus 120 Kbps) is backward compatible with 120 Kbps applications. Verify PCB layout compatibility with the 28-SSOP package footprint.

Q: What is the significance of receiver hysteresis differences between parts?

A: Receiver hysteresis affects noise immunity and signal transition characteristics. SP211CA-L/TR and SP211ECA-L/TR specify 500 mV hysteresis, while ADM and HIN variants specify 650 mV or 500 mV respectively. Higher hysteresis provides greater noise immunity but may affect signal timing. Verify compatibility with your signal conditioning requirements.

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