SP211CT-L RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The SP211CT-L is a full-duplex RS232 transceiver manufactured by MaxLinear, Inc., featuring 4 drivers and 5 receivers in a 28-SOIC surface mount package. This part is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active manufacturers. The SP211CT-L operates within a 4.5V to 5.5V supply range with a 120 kbps data rate and 500 mV receiver hysteresis, designed for industrial and commercial RS232 communication applications.

Key Parameters

Parameter	SP211CT-L
Manufacturer	MaxLinear, Inc.
Type	Transceiver
Protocol	RS232
Number of Drivers/Receivers	4/5
Duplex	Full
Data Rate	120 kbps
Voltage - Supply	4.5V ~ 5.5V
Operating Temperature	0°C ~ 70°C
Package / Case	28-SOIC (0.295", 7.50mm Width)
Mounting Type	Surface Mount
RoHS Status	RoHS Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)
Product Status	Discontinued at DiGi Electronics

Substitute Part Grouping Explanation

Substitution of the SP211CT-L is determined by strict equivalence in the following parameters:

Protocol: RS232
Number of Drivers/Receivers: 4/5 configuration
Duplex: Full
Package / Case: 28-SOIC (0.295", 7.50mm Width)
Mounting Type: Surface Mount
Data Rate: Minimum 120 kbps
Voltage - Supply: Compatibility with 4.5V ~ 5.5V range

Substitute parts are grouped by manufacturer and product status. Parts from Analog Devices Inc. (ADM211 and ADM241 series) and Renesas Electronics Corporation (HIN211 series) meet the core electrical and mechanical requirements. Packaging variants (Tube vs. Tape & Reel) do not affect functional equivalence but impact procurement and handling.

Parameter Comparison

Part Number	Manufacturer	Protocol	Drivers/Receivers	Data Rate	Voltage - Supply	Operating Temperature	Package	Product Status	RoHS Status
SP211CT-L	MaxLinear, Inc.	RS232	4/5	120 kbps	4.5V ~ 5.5V	0°C ~ 70°C	28-SOIC	Discontinued	RoHS Compliant
ADM211ARZ	Analog Devices Inc.	RS232	4/5	120 kbps	4.5V ~ 5.5V	-40°C ~ 85°C	28-SOIC	Active	ROHS3 Compliant
ADM211ARZ-REEL	Analog Devices Inc.	RS232	4/5	120 kbps	4.5V ~ 5.5V	-40°C ~ 85°C	28-SOIC	Active	ROHS3 Compliant
ADM211EARZ	Analog Devices Inc.	RS232	4/5	120 kbps	4.5V ~ 5.5V	-40°C ~ 85°C	28-SOIC	Active	ROHS3 Compliant
ADM211EARZ-REEL	Analog Devices Inc.	RS232	4/5	120 kbps	4.5V ~ 5.5V	-40°C ~ 85°C	28-SOIC	Active	ROHS3 Compliant
ADM241LARZ	Analog Devices Inc.	RS232	4/5	120 kbps	4.75V ~ 5.25V	-40°C ~ 85°C	28-SOIC	Active	ROHS3 Compliant
ADM241LARZ-REEL	Analog Devices Inc.	RS232	4/5	120 kbps	4.75V ~ 5.25V	-40°C ~ 85°C	28-SOIC	Active	ROHS3 Compliant
ADM241LJRZ	Analog Devices Inc.	RS232	4/5	120 kbps	4.75V ~ 5.25V	0°C ~ 70°C	28-SOIC	Active	ROHS3 Compliant
ADM241LJRZ-REEL	Analog Devices Inc.	RS232	4/5	120 kbps	4.75V ~ 5.25V	0°C ~ 70°C	28-SOIC	Active	ROHS3 Compliant
HIN211ECBZ	Renesas Electronics Corporation	RS232	4/5	230 kbps	4.5V ~ 5.5V	0°C ~ 70°C	28-SOIC	Active	ROHS3 Compliant
HIN211ECBZ-T	Renesas Electronics Corporation	RS232	4/5	230 kbps	4.5V ~ 5.5V	0°C ~ 70°C	28-SOIC	Active	ROHS3 Compliant

Engineering Selection Recommendations

All listed substitute parts are active products with current manufacturing status, ensuring long-term availability and supply chain stability. The ADM211 series from Analog Devices Inc. provides direct functional equivalence with extended operating temperature range (-40°C to 85°C) compared to the SP211CT-L (0°C to 70°C), offering enhanced reliability for industrial environments. The ADM241 series maintains the same 4/5 driver/receiver configuration with a narrower supply voltage range (4.75V to 5.25V) and is suitable for applications with tighter voltage regulation.

The HIN211 series from Renesas Electronics Corporation operates at the same temperature range as the SP211CT-L (0°C to 70°C) with a higher data rate capability (230 kbps versus 120 kbps), providing performance headroom for future design iterations. All substitute parts comply with ROHS3 standards and carry MSL ratings of 1 (Unlimited) or 3 (168 Hours), meeting modern environmental and reliability requirements.

Packaging selection between Tube and Tape & Reel variants depends on procurement volume and assembly process requirements. Tube packaging is suitable for lower-volume applications, while Tape & Reel packaging is optimized for automated assembly lines.

Frequently Asked Questions (FAQ)

Q: Can ADM211ARZ replace SP211CT-L directly?

A: Yes. Both parts share identical RS232 protocol, 4/5 driver/receiver configuration, 120 kbps data rate, 4.5V to 5.5V supply voltage range, and 28-SOIC package. The ADM211ARZ extends the operating temperature range to -40°C to 85°C, providing broader environmental compatibility.

Q: What is the difference between ADM211 and ADM241 series?

A: Both series maintain the 4/5 driver/receiver RS232 transceiver configuration in 28-SOIC packages. The ADM241 series operates with a narrower supply voltage range (4.75V to 5.25V) compared to ADM211 (4.5V to 5.5V). The ADM241LJRZ variant matches the SP211CT-L operating temperature range (0°C to 70°C), while ADM241LARZ extends to -40°C to 85°C.

Q: How does HIN211ECBZ differ from the SP211CT-L?

A: The HIN211ECBZ maintains functional equivalence in protocol, driver/receiver count, package, and operating temperature range. The primary difference is data rate capability: HIN211ECBZ supports 230 kbps compared to SP211CT-L at 120 kbps. Both operate within 4.5V to 5.5V supply voltage and 0°C to 70°C temperature range.

Q: What does the "-REEL" suffix indicate?

A: The "-REEL" suffix denotes Tape & Reel packaging, optimized for automated pick-and-place assembly. Parts without this suffix are supplied in Tube packaging. Functional specifications remain identical between packaging variants.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts comply with ROHS3 standards. The original SP211CT-L carries RoHS Compliant status, and all Analog Devices and Renesas alternatives meet ROHS3 requirements.

Q: What is the Moisture Sensitivity Level (MSL) significance?

A: MSL indicates the maximum time a component can be exposed to moisture before soldering. The SP211CT-L and HIN211 series carry MSL 3 (168 hours), while ADM211 and ADM241 series carry MSL 1 (Unlimited), providing greater flexibility in storage and handling without baking requirements.

Q: Can I use HIN211ECBZ in a design originally specified for SP211CT-L?

A: Yes. The HIN211ECBZ is functionally equivalent with identical package, protocol, driver/receiver configuration, and operating temperature range. The higher data rate (230 kbps) is backward compatible with 120 kbps applications.

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