SP233ACP-L RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The SP233ACP-L is a 2/2 full-duplex RS232 transceiver manufactured by MaxLinear, Inc., housed in a 20-DIP package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs requiring RS232 interface functionality. The part operates within a 4.5V to 5.5V supply range with a 240 kbps data rate and 500 mV receiver hysteresis, designed for through-hole mounting applications in legacy and industrial communication systems.

Substiute Parts

SP233ACP-L

MaxLinear, Inc.In Stock: 1175SP233ACP-L Datasheet

Current PartRFQ

ADM233LANZ

Analog Devices Inc.In Stock: 1348ADM233LANZ Datasheet

MFR RecommendedRFQ

ADM233LJNZ

Analog Devices Inc.In Stock: 7630ADM233LJNZ Datasheet

MFR RecommendedRFQ

MAX203CPP+G36

Analog Devices Inc./Maxim IntegratedIn Stock: 1309MAX203CPP+G36 Datasheet

MFR RecommendedRFQ

MAX203ECPP+G36

Analog Devices Inc./Maxim IntegratedIn Stock: 1255MAX203ECPP+G36 Datasheet

MFR RecommendedRFQ

MAX203EEPP+G36

Analog Devices Inc./Maxim IntegratedIn Stock: 2178MAX203EEPP+G36 Datasheet

MFR RecommendedRFQ

MAX203EPP+G36

Analog Devices Inc./Maxim IntegratedIn Stock: 995MAX203EPP+G36 Datasheet

MFR RecommendedRFQ

MAX233ACPP+G36

Analog Devices Inc./Maxim IntegratedIn Stock: 1611MAX233ACPP+G36 Datasheet

MFR RecommendedRFQ

MAX233AEPP+G36

Analog Devices Inc./Maxim IntegratedIn Stock: 941MAX233AEPP+G36 Datasheet

MFR RecommendedRFQ

MAX233CPP+G36

Analog Devices Inc./Maxim IntegratedIn Stock: 1264MAX233CPP+G36 Datasheet

MFR RecommendedRFQ

MAX233EPP+G36

Analog Devices Inc./Maxim IntegratedIn Stock: 1330MAX233EPP+G36 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SP233ACP-L is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

• Protocol: RS232
• Drivers/Receivers Configuration: 2/2
• Duplex Mode: Full
• Package/Case: 20-DIP (0.300", 7.62mm)
• Mounting Type: Through Hole
• Receiver Hysteresis: 500 mV (preferred) or 650 mV (acceptable with functional equivalence)
• Data Rate: Minimum 120 kbps (SP233ACP-L operates at 240 kbps)
• Voltage Supply Range: Must accommodate 4.5V ~ 5.5V operation
• MSL Rating: 1 (Unlimited)

Substitute parts are grouped into two categories based on receiver hysteresis specification:

Category A (500 mV Hysteresis - Direct Electrical Match): MAX203 series (MAX203CPP+G36, MAX203ECPP+G36, MAX203EEPP+G36, MAX203EPP+G36) and MAX233 series (MAX233ACPP+G36, MAX233AEPP+G36, MAX233CPP+G36, MAX233EPP+G36) from Analog Devices Inc./Maxim Integrated.

Category B (650 mV Hysteresis - Functional Equivalent): ADM233 series (ADM233LANZ, ADM233LJNZ) from Analog Devices Inc., providing equivalent RS232 transceiver functionality with different receiver hysteresis specification.

All substitute parts maintain identical package geometry, through-hole mounting compatibility, and MSL rating, ensuring direct mechanical and thermal compatibility.

Parameter Comparison

Engineering Selection Recommendations

For Direct Electrical Equivalence (500 mV Receiver Hysteresis):

Select from the MAX203 or MAX233 series manufactured by Analog Devices Inc./Maxim Integrated. These parts maintain identical receiver hysteresis specification to the SP233ACP-L and are classified as active products with ROHS3 compliance. Temperature-rated variants are available:

• MAX203CPP+G36, MAX233ACPP+G36, MAX233CPP+G36: 0°C ~ 70°C operating range
• MAX203ECPP+G36, MAX203EEPP+G36, MAX203EPP+G36, MAX233AEPP+G36, MAX233EPP+G36: -40°C ~ 85°C extended operating range

For Functional Equivalence (650 mV Receiver Hysteresis):

The ADM233 series from Analog Devices Inc. provides RS232 transceiver functionality with 650 mV receiver hysteresis. This specification differs from the SP233ACP-L but remains within acceptable operating parameters for standard RS232 communication. ADM233LJNZ offers the matching 0°C ~ 70°C temperature range, while ADM233LANZ extends to -40°C ~ 85°C.

Compliance Considerations:

All substitute parts carry ROHS3 compliance and REACH unaffected status, supporting modern regulatory requirements. The SP233ACP-L obsolete status necessitates transition to active production parts for long-term supply chain stability.

Voltage Supply Consideration:

Substitute parts operate within 4.75V ~ 5.25V, a narrower range than the SP233ACP-L (4.5V ~ 5.5V). System designs must confirm that power supply regulation maintains operation within the substitute part specification.

Frequently Asked Questions (FAQ)

Q: Can MAX203 and MAX233 series parts be used interchangeably with SP233ACP-L?

A: Yes, within the specified electrical parameters. Both series maintain 2/2 full-duplex RS232 transceiver configuration, 20-DIP package geometry, and 500 mV receiver hysteresis. Temperature rating and operating range must be selected based on application requirements.

Q: What is the significance of receiver hysteresis in RS232 transceiver selection?

A: Receiver hysteresis determines the voltage differential required to switch receiver output states, affecting noise immunity and signal integrity. The SP233ACP-L specifies 500 mV hysteresis. Substitute parts with matching 500 mV hysteresis (MAX203, MAX233 series) provide direct electrical equivalence. ADM233 series with 650 mV hysteresis offers functional equivalence with enhanced noise immunity but different switching characteristics.

Q: Are ADM233 parts suitable replacements for SP233ACP-L?

A: ADM233 parts are functionally equivalent RS232 transceivers with identical package, mounting type, and core specifications. The 650 mV receiver hysteresis differs from SP233ACP-L, but both values comply with RS232 standard specifications. Selection depends on application noise environment and signal characteristics.

Q: What is the impact of data rate differences between SP233ACP-L (240 kbps) and substitute parts (120 kbps)?

A: The SP233ACP-L supports 240 kbps operation, while substitute parts are rated for 120 kbps. For applications operating below 120 kbps, substitute parts function within specification. Applications requiring higher data rates must confirm compatibility through system-level testing or select alternative components.

Q: How does the voltage supply range difference affect substitution?

A: SP233ACP-L operates at 4.5V ~ 5.5V, while substitutes operate at 4.75V ~ 5.25V. The substitute range is narrower. System power supplies must maintain regulation within 4.75V ~ 5.25V to ensure substitute part operation. If system design includes operation below 4.75V or above 5.25V, substitute parts are not suitable.

Q: Are all substitute parts available in the same packaging format?

A: Yes. All substitute parts are housed in 20-DIP (0.300", 7.62mm) through-hole packages, matching SP233ACP-L mechanical specifications. Direct board-level substitution is possible without PCB redesign.

Q: What is the difference between temperature-rated variants within the MAX203 and MAX233 series?

A: Temperature rating indicates the guaranteed operating range. Parts rated 0°C ~ 70°C are suitable for standard industrial environments. Parts rated -40°C ~ 85°C are suitable for extended temperature applications including automotive and harsh environments. Selection depends on application thermal requirements.

Q: Do substitute parts carry regulatory compliance certifications?

A: All substitute parts are ROHS3 compliant and REACH unaffected, meeting modern environmental and regulatory standards. The SP233ACP-L obsolete status makes transition to compliant active parts necessary for new designs and long-term production support.