SP3227ECY-L RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The SP3227ECY-L is a full-duplex RS232 transceiver manufactured by MaxLinear, Inc., designed for serial communication applications requiring 1/1 driver/receiver configuration. This device operates across a 3V to 5.5V supply range with a 1 Mbps data rate and is housed in a 16-TSSOP surface mount package. The part is currently classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new design implementations.

Key Parameters

Parameter	Value
Manufacturer Part Number	SP3227ECY-L
Manufacturer	MaxLinear, Inc.
Category	Interface
Type	Transceiver
Protocol	RS232
Number of Drivers/Receivers	1/1
Duplex	Full
Receiver Hysteresis	500 mV
Data Rate	1 Mbps
Voltage - Supply	3V ~ 5.5V
Operating Temperature	0°C ~ 70°C
Mounting Type	Surface Mount
Package / Case	16-TSSOP (0.173", 4.40mm Width)
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the SP3227ECY-L is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

Protocol: RS232
Number of Drivers/Receivers: 1/1
Duplex: Full
Receiver Hysteresis: 500 mV
Voltage - Supply: 3V ~ 5.5V
Mounting Type: Surface Mount
Package / Case: 16-TSSOP (0.173", 4.40mm Width)
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Flexible Parameters (Allow Variation):

Data Rate: Substitute parts may operate at 250 kbps or 1 Mbps
Operating Temperature: Substitute parts may support 0°C ~ 70°C or -40°C ~ 85°C
Product Status: Active parts are preferred over obsolete parts
Packaging Format: Tube or Tape & Reel acceptable

All substitute parts listed maintain identical electrical interface characteristics, package dimensions, and MSL ratings, ensuring direct functional replacement in existing designs.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Data Rate	Operating Temperature	Product Status	Packaging	Inventory (Pcs)
SP3227ECY-L	MaxLinear, Inc.	1 Mbps	0°C ~ 70°C	Obsolete	-	2800
MAX3226ECUE+	Analog Devices Inc./Maxim Integrated	250 kbps	0°C ~ 70°C	Active	Tube	2200
MAX3226EEUE+	Analog Devices Inc./Maxim Integrated	250 kbps	-40°C ~ 85°C	Active	Tube	1704
MAX3227ECUE+T	Analog Devices Inc./Maxim Integrated	1 Mbps	0°C ~ 70°C	Active	Tape & Reel (TR)	1014
MAX3227EEUE+	Analog Devices Inc./Maxim Integrated	1 Mbps	-40°C ~ 85°C	Active	Tube	1516
MAX3227ECUE+	Analog Devices Inc./Maxim Integrated	1 Mbps	0°C ~ 70°C	Active	Tube	2140
SN75C3221EPW	Texas Instruments	1 Mbps	0°C ~ 70°C	Obsolete	Tube	1410
SN75C3221PW	Texas Instruments	1 Mbps	0°C ~ 70°C	Obsolete	Tube	739
TRSF3221ECPW	Texas Instruments	1 Mbps	0°C ~ 70°C	Obsolete	-	12900

Engineering Selection Recommendations

For Active Product Status Requirement: Select from the Analog Devices Inc./Maxim Integrated MAX3227 and MAX3226 series parts, which maintain active product status and ROHS3 compliance. These parts are recommended for new designs and long-term system support.

For Matching Data Rate (1 Mbps): The MAX3227ECUE+, MAX3227ECUE+T, and MAX3227EEUE+ provide identical 1 Mbps data rate performance matching the original SP3227ECY-L specification. These are direct functional equivalents.

For Extended Temperature Range: The MAX3227EEUE+ and MAX3226EEUE+ support -40°C to 85°C operating range, suitable for applications requiring broader thermal performance beyond the standard 0°C to 70°C range.

For Reduced Data Rate Applications: The MAX3226ECUE+ and MAX3226EEUE+ operate at 250 kbps and are suitable for applications where lower data rates are acceptable, offering alternative sourcing options.

For Packaging Considerations: Tape & Reel (TR) packaging is available with MAX3227ECUE+T for high-volume automated assembly. Tube packaging is standard across most active alternatives.

All substitute parts maintain identical electrical interface specifications, package dimensions (16-TSSOP), and MSL ratings, ensuring mechanical and electrical compatibility with existing PCB designs.

Frequently Asked Questions (FAQ)

Q: Can MAX3226 series parts directly replace the SP3227ECY-L? A: MAX3226 parts are electrically compatible but operate at 250 kbps instead of 1 Mbps. They are suitable only if your application does not require 1 Mbps data rate performance.

Q: What is the difference between MAX3227ECUE+ and MAX3227EEUE+? A: Both operate at 1 Mbps with identical electrical characteristics. The primary difference is operating temperature range: MAX3227ECUE+ supports 0°C to 70°C, while MAX3227EEUE+ supports -40°C to 85°C. Select based on your thermal requirements.

Q: Are the Texas Instruments SN75C3221 parts suitable replacements? A: SN75C3221EPW and SN75C3221PW are parametric equivalents with identical 1 Mbps data rate and operating temperature range. However, both are classified as obsolete. Use only if existing inventory is available and long-term supply is not required.

Q: What does the packaging designation mean (Tube vs. Tape & Reel)? A: Tube packaging is suitable for manual handling and small-volume assembly. Tape & Reel (TR) packaging is designed for automated pick-and-place assembly in high-volume production. Both formats contain the same component.

Q: Are all substitute parts ROHS3 compliant? A: All active Analog Devices Inc./Maxim Integrated parts (MAX3226 and MAX3227 series) are ROHS3 compliant. Texas Instruments obsolete parts (SN75C3221 and TRSF3221) are also ROHS3 compliant.

Q: Can I use TRSF3221ECPW as a replacement? A: TRSF3221ECPW is a parametric equivalent with 1 Mbps data rate and matching operating temperature. However, it is obsolete. Use only if existing inventory is available.

Q: What is the significance of the MSL rating? A: All listed parts maintain MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling. This ensures compatibility with standard PCB assembly processes.

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