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ICL3243ECA-T Equivalent & Substitute Parts
Part Overview
The ICL3243ECA-T is a full-duplex RS232 transceiver manufactured by Renesas Electronics Corporation, configured with 3 drivers and 5 receivers in a 28-SSOP surface mount package. This component operates across a 3V to 5.5V supply range with a maximum data rate of 250kbps and supports operating temperatures from 0°C to 70°C. The ICL3243ECA-T is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing system support, design updates, and procurement continuity.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | ICL3243ECA-T |
| Manufacturer | Renesas Electronics Corporation |
| Type | Transceiver |
| Protocol | RS232 |
| Number of Drivers/Receivers | 3/5 |
| Duplex | Full |
| Receiver Hysteresis | 500 mV |
| Data Rate | 250kbps |
| Voltage - Supply | 3V ~ 5.5V |
| Operating Temperature | 0°C ~ 70°C |
| Mounting Type | Surface Mount |
| Package / Case | 28-SSOP (0.209", 5.30mm Width) |
| Product Status | Obsolete |
| RoHS Status | RoHS non-compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the ICL3243ECA-T is determined by strict alignment of the following critical parameters:
Core Electrical Parameters:
- Protocol: RS232
- Number of Drivers/Receivers: 3/5
- Duplex: Full
- Receiver Hysteresis: 500 mV
- Voltage - Supply: 3V ~ 5.5V
- Package / Case: 28-SSOP (0.209", 5.30mm Width)
Acceptable Variation:
- Data Rate: Substitute parts may exceed 250kbps (backward compatible)
- Operating Temperature: Substitute parts may support extended ranges (backward compatible)
- Product Status: Active parts are preferred over obsolete parts
- RoHS Compliance: ROHS3 compliant parts are preferred for new designs
- Packaging Format: Tape & Reel (TR) and Tube formats are interchangeable for component selection
Substitute parts are grouped into three categories: parametric equivalents (identical electrical specifications with improved product status), direct equivalents (same base functionality with potential data rate enhancements), and upgrade options (extended temperature ranges for industrial applications).
Parameter Comparison
| Part Number | Manufacturer | Drivers/Receivers | Data Rate | Supply Voltage | Operating Temp | Package | Product Status | RoHS Status | Packaging Format |
|---|---|---|---|---|---|---|---|---|---|
| ICL3243ECA-T | Renesas | 3/5 | 250kbps | 3V ~ 5.5V | 0°C ~ 70°C | 28-SSOP | Obsolete | RoHS non-compliant | Tube |
| ICL3241ECAZ-T | Renesas | 3/5 | 250kbps | 3V ~ 5.5V | 0°C ~ 70°C | 28-SSOP | Active | ROHS3 Compliant | Tape & Reel |
| ICL3243ECAZ-T | Renesas | 3/5 | 250kbps | 3V ~ 5.5V | 0°C ~ 70°C | 28-SSOP | Active | ROHS3 Compliant | Tape & Reel |
| MAX3243ECAI+ | Analog Devices Inc./Maxim Integrated | 3/5 | 250kbps | 3V ~ 5.5V | 0°C ~ 70°C | 28-SSOP | Active | ROHS3 Compliant | Tube |
| MAX3243ECDBR | Texas Instruments | 3/5 | 500kbps | 3V ~ 5.5V | 0°C ~ 70°C | 28-SSOP | Active | ROHS3 Compliant | Tape & Reel |
| MAX3244ECAI+ | Analog Devices Inc./Maxim Integrated | 3/5 | 250kbps | 3V ~ 5.5V | 0°C ~ 70°C | 28-SSOP | Active | ROHS3 Compliant | Tube |
| MAX3245ECAI+ | Analog Devices Inc./Maxim Integrated | 3/5 | 1Mbps | 3V ~ 5.5V | 0°C ~ 70°C | 28-SSOP | Active | ROHS3 Compliant | Tube |
| MAX3245ECAI+T | Analog Devices Inc./Maxim Integrated | 3/5 | 1Mbps | 3V ~ 5.5V | 0°C ~ 70°C | 28-SSOP | Active | ROHS3 Compliant | Tape & Reel |
| TRS3243ECDB | Texas Instruments | 3/5 | 500kbps | 3V ~ 5.5V | 0°C ~ 70°C | 28-SSOP | Obsolete | ROHS3 Compliant | Tube |
| TRS3243ECDBR | Texas Instruments | 3/5 | 500kbps | 3V ~ 5.5V | 0°C ~ 70°C | 28-SSOP | Active | ROHS3 Compliant | Tape & Reel |
| MAX3243EIDB | Texas Instruments | 3/5 | 500kbps | 3V ~ 5.5V | -40°C ~ 85°C | 28-SSOP | Obsolete | ROHS3 Compliant | Tube |
Engineering Selection Recommendations
Primary Substitutes (Parametric Equivalents):
ICL3241ECAZ-T and ICL3243ECAZ-T from Renesas Electronics Corporation are direct parametric equivalents with identical electrical specifications to the ICL3243ECA-T. Both parts maintain 3/5 driver/receiver configuration, 250kbps data rate, and 3V to 5.5V supply voltage. These parts are classified as active products with ROHS3 compliance, making them suitable for new designs and long-term availability. The primary difference is packaging format (Tape & Reel versus Tube), which does not affect electrical compatibility.
Secondary Substitutes (Direct Equivalents):
MAX3243ECAI+, MAX3244ECAI+, and MAX3245ECAI+ from Analog Devices Inc./Maxim Integrated maintain the core 3/5 transceiver configuration and 3V to 5.5V supply range. MAX3243ECAI+ and MAX3244ECAI+ preserve the 250kbps data rate specification. MAX3245ECAI+ and MAX3245ECAI+T offer enhanced data rate capability at 1Mbps, providing performance headroom for applications requiring higher throughput. All three are active products with ROHS3 compliance and MSL 1 rating.
Alternative Substitutes (Enhanced Data Rate):
MAX3243ECDBR and TRS3243ECDBR provide 500kbps data rate capability while maintaining all other core specifications. Both are active products with ROHS3 compliance and Tape & Reel packaging. These parts are suitable for applications where moderate data rate enhancement is beneficial.
Industrial Temperature Range Option:
MAX3243EIDB from Texas Instruments extends the operating temperature range to -40°C to 85°C, supporting industrial and extended-temperature applications. This part is classified as obsolete but maintains ROHS3 compliance. Selection of this part is appropriate only when extended temperature operation is a system requirement.
Compliance Consideration:
The original ICL3243ECA-T is RoHS non-compliant. All recommended substitute parts are ROHS3 compliant, aligning with current regulatory requirements and design standards.
Frequently Asked Questions (FAQ)
Q: Can I directly replace ICL3243ECA-T with ICL3243ECAZ-T?
A: Yes. ICL3243ECAZ-T is a parametric equivalent with identical electrical specifications: 3/5 drivers/receivers, 250kbps data rate, 3V to 5.5V supply voltage, and 28-SSOP package. The only difference is packaging format (Tape & Reel versus Tube), which does not affect electrical compatibility. ICL3243ECAZ-T is an active product with ROHS3 compliance.
Q: What is the difference between MAX3243ECAI+ and MAX3245ECAI+?
A: Both parts maintain the 3/5 transceiver configuration and 3V to 5.5V supply range. The primary difference is data rate: MAX3243ECAI+ operates at 250kbps, while MAX3245ECAI+ operates at 1Mbps. Both are active products with ROHS3 compliance. Selection depends on whether your application requires the higher data rate capability of the MAX3245 series.
Q: Are Tape & Reel and Tube packaging formats interchangeable?
A: Yes, from an electrical and functional perspective. Tape & Reel (TR) and Tube formats contain identical components and are suitable for different procurement and assembly workflows. Tape & Reel is typically used for automated assembly lines, while Tube packaging is used for manual assembly or lower-volume applications. Verify your assembly process requirements before selecting packaging format.
Q: Why is the ICL3243ECA-T classified as obsolete?
A: The ICL3243ECA-T is no longer in active production by Renesas Electronics Corporation. Active equivalent parts such as ICL3243ECAZ-T and ICL3241ECAZ-T are available as direct replacements with improved product status and ROHS3 compliance.
Q: Can I use MAX3243EIDB as a substitute if my application requires extended temperature operation?
A: MAX3243EIDB extends the operating temperature range to -40°C to 85°C, supporting industrial applications. However, this part is classified as obsolete. If extended temperature operation is required, consider active alternatives such as MAX3245ECAI+T, which maintains active product status and ROHS3 compliance while providing enhanced data rate capability.
Q: What does RoHS compliance mean for component selection?
A: ROHS3 compliance indicates the part meets Restriction of Hazardous Substances regulations, restricting lead and other hazardous materials. The original ICL3243ECA-T is RoHS non-compliant. All recommended substitute parts are ROHS3 compliant, aligning with current environmental and regulatory standards for new designs and procurement.
Q: Are all substitute parts pin-compatible with ICL3243ECA-T?
A: All listed substitute parts maintain the 28-SSOP package format with identical pinout configuration. Pin compatibility is preserved across all recommended substitutes, enabling direct board-level replacement without PCB redesign.
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