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74ABT652CSCX Equivalent & Substitute Parts
Part Overview
The 74ABT652CSCX is a non-inverting transceiver logic IC manufactured by onsemi, designed for 8-bit data transmission with 3-state output capability. Operating within a 4.5V to 5.5V supply range, this component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.
The 74ABT series represents a standard logic family for bus transceiver applications. Substitution is driven by product lifecycle status and the need for active, readily available alternatives that maintain electrical and mechanical compatibility.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | 74ABT652CSCX |
| Manufacturer | onsemi |
| Logic Type | Transceiver, Non-Inverting |
| Number of Elements | 1 |
| Number of Bits per Element | 8 |
| Output Type | 3-State |
| Current - Output High, Low | 32mA, 64mA |
| Voltage - Supply | 4.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Package / Case | 24-SOIC (0.295", 7.50mm Width) |
| Mounting Type | Surface Mount |
| Product Status | Obsolete |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitute parts for the 74ABT652CSCX are selected based on strict electrical and mechanical parameter matching:
Primary Substitution Criteria:
- Logic Type: Transceiver, Non-Inverting (identical function)
- Number of Elements: 1
- Number of Bits per Element: 8
- Output Type: 3-State
- Current Ratings: 32mA (High), 64mA (Low)
- Supply Voltage: 4.5V ~ 5.5V
- Operating Temperature: -40°C ~ 85°C
- Package: 24-SOIC (0.295", 7.50mm Width)
- Mounting Type: Surface Mount
Substitute Categories:
Direct Equivalents (Identical Base Part Number): SN74ABT652ADWR and SN74ABT652DWR maintain the same base product number (74ABT652) with full parameter alignment. These parts are manufactured by Texas Instruments and are available in active product status.
Parametric Equivalents (Identical Electrical Specifications): SN74ABT543ADWR, SN74ABT646ADWR, SN74ABT646DWR, and SN74ABT2952ADWR share all critical electrical parameters and package specifications. These parts differ only in base product number but maintain functional equivalence for 8-bit non-inverting transceiver applications.
Functional Variant (Inverting Logic): SN74ABT651DWR is included as a parametric equivalent with one exception: it implements inverting logic rather than non-inverting logic. This part is suitable only for applications where signal inversion is required or acceptable.
Parameter Comparison
| Part Number | Manufacturer | Logic Type | Elements | Bits/Element | Output Type | Current (H/L) | Supply Voltage | Temp Range | Package | Product Status | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 74ABT652CSCX | onsemi | Non-Inverting | 1 | 8 | 3-State | 32mA, 64mA | 4.5V ~ 5.5V | -40°C ~ 85°C | 24-SOIC | Obsolete | REACH Unaffected |
| SN74ABT652ADWR | Texas Instruments | Non-Inverting | 1 | 8 | 3-State | 32mA, 64mA | 4.5V ~ 5.5V | -40°C ~ 85°C | 24-SOIC | Active | ROHS3 Compliant |
| SN74ABT652DWR | Texas Instruments | Non-Inverting | 1 | 8 | 3-State | 32mA, 64mA | 4.5V ~ 5.5V | -40°C ~ 85°C | 24-SOIC | Discontinued at DiGi Electronics | ROHS3 Compliant |
| SN74ABT543ADWR | Texas Instruments | Non-Inverting | 1 | 8 | 3-State | 32mA, 64mA | 4.5V ~ 5.5V | -40°C ~ 85°C | 24-SOIC | Active | ROHS3 Compliant |
| SN74ABT646ADWR | Texas Instruments | Non-Inverting | 1 | 8 | 3-State | 32mA, 64mA | 4.5V ~ 5.5V | -40°C ~ 85°C | 24-SOIC | Active | ROHS3 Compliant |
| SN74ABT646DWR | Texas Instruments | Non-Inverting | 1 | 8 | 3-State | 32mA, 64mA | 4.5V ~ 5.5V | -40°C ~ 85°C | 24-SOIC | Active | ROHS3 Compliant |
| SN74ABT2952ADWR | Texas Instruments | Non-Inverting | 1 | 8 | 3-State | 32mA, 64mA | 4.5V ~ 5.5V | -40°C ~ 85°C | 24-SOIC | Active | ROHS3 Compliant |
| SN74ABT651DWR | Texas Instruments | Inverting | 1 | 8 | 3-State | 32mA, 64mA | 4.5V ~ 5.5V | -40°C ~ 85°C | 24-SOIC | Active | ROHS3 Compliant |
Engineering Selection Recommendations
Primary Recommendation: SN74ABT652ADWR (Texas Instruments)
This part is the direct equivalent to the 74ABT652CSCX with active product status and ROHS3 compliance. It maintains identical electrical specifications, package configuration, and operating parameters. Availability is confirmed at 4,823 units in stock.
Secondary Recommendations: SN74ABT543ADWR, SN74ABT646ADWR, and SN74ABT2952ADWR
These parts provide parametric equivalence with all critical electrical and mechanical specifications matching the original part. All three are active products with ROHS3 compliance. Selection among these alternatives should be based on procurement availability and lead time requirements.
Conditional Recommendation: SN74ABT651DWR
This part is suitable only for applications where inverting transceiver logic is required or where signal inversion is acceptable in the system design. It maintains all other electrical and mechanical specifications.
Not Recommended: SN74ABT652DWR
Although parametrically equivalent, this part is discontinued at DiGi Electronics and should not be selected for new designs or long-term procurement strategies.
Frequently Asked Questions (FAQ)
Q: Can SN74ABT652ADWR be used as a direct replacement for 74ABT652CSCX?
A: Yes. SN74ABT652ADWR is a direct equivalent with identical logic type (non-inverting), element count (1), bit width (8), output type (3-state), current ratings (32mA/64mA), supply voltage (4.5V–5.5V), operating temperature range (-40°C to 85°C), and package (24-SOIC). The primary difference is manufacturer (Texas Instruments vs. onsemi) and product status (active vs. obsolete).
Q: What is the difference between SN74ABT652ADWR and SN74ABT543ADWR?
A: Both parts are parametric equivalents with identical electrical specifications and package. The difference lies in the base product number (74ABT652 vs. 74ABT543), which reflects different internal design implementations. For 8-bit non-inverting transceiver applications with 3-state output, both are functionally equivalent.
Q: Can SN74ABT651DWR replace the 74ABT652CSCX?
A: SN74ABT651DWR is parametrically equivalent in all electrical and mechanical specifications except for one critical difference: it implements inverting logic rather than non-inverting logic. Use this part only if your application requires signal inversion or if inversion is acceptable in your system design.
Q: Are all substitute parts ROHS3 compliant?
A: All Texas Instruments substitute parts listed (SN74ABT652ADWR, SN74ABT543ADWR, SN74ABT646ADWR, SN74ABT646DWR, SN74ABT2952ADWR, and SN74ABT651DWR) are ROHS3 compliant. The original 74ABT652CSCX is REACH unaffected.
Q: What packaging options are available for substitute parts?
A: All substitute parts use the 24-SOIC (0.295", 7.50mm Width) surface mount package, matching the original part. Packaging formats vary by part number: some are supplied in Tube, others in Tape & Reel (TR). Verify packaging format with your supplier based on assembly requirements.
Q: Which substitute part has the highest inventory availability?
A: SN74ABT543ADWR has the highest confirmed inventory at 11,100 units in stock, followed by SN74ABT652ADWR at 4,823 units. Both are suitable for immediate procurement.
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