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74ABT16952CSSC Equivalent & Substitute Parts
Part Overview
The 74ABT16952CSSC is a non-inverting transceiver logic IC manufactured by onsemi, featuring 2 elements with 8 bits per element and 3-state output capability in a 56-SSOP package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The part operates within the 4.5V to 5.5V supply voltage range and maintains performance across the -40°C to 85°C temperature range.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Logic Type | Transceiver, Non-Inverting |
| Number of Elements | 2 |
| Number of Bits per Element | 8 |
| Output Type | 3-State |
| Current - Output High | 32mA |
| Current - Output Low | 64mA |
| Voltage - Supply | 4.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | 56-BSSOP (0.295", 7.50mm Width) |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution for the 74ABT16952CSSC is determined by strict equivalence across the following critical parameters: logic type (non-inverting transceiver), element count (2), bits per element (8), output configuration (3-state), output current specifications (32mA high, 64mA low), supply voltage range (4.5V ~ 5.5V), operating temperature range (-40°C ~ 85°C), and surface mount packaging with 56-SSOP or compatible 56-TSSOP footprint.
Substitute parts are grouped into two categories:
Direct Substitutes (Same Base Part Number): Parts sharing the 74ABT16952 base designation with identical electrical and mechanical specifications but different packaging formats or product status.
Parametric Equivalents (Different Base Part Number): Parts from the 74FCT and 74ABT series that maintain all critical electrical parameters and package compatibility despite different base designations.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Series | Product Status | Package / Case | Voltage - Supply | Current - Output High / Low | Operating Temperature | RoHS Status | Inventory (Pcs) |
|---|---|---|---|---|---|---|---|---|---|
| 74ABT16952CSSC | onsemi | 74ABT | Obsolete | 56-BSSOP (0.295", 7.50mm) | 4.5V ~ 5.5V | 32mA / 64mA | -40°C ~ 85°C | REACH Unaffected | 1118 |
| SN74ABT16952DGGR | Texas Instruments | 74ABT | Active | 56-TFSOP (0.240", 6.10mm) | 4.5V ~ 5.5V | 32mA / 64mA | -40°C ~ 85°C | ROHS3 Compliant | 836 |
| SN74ABT16952DLR | Texas Instruments | 74ABT | Active | 56-BSSOP (0.295", 7.50mm) | 4.5V ~ 5.5V | 32mA / 64mA | -40°C ~ 85°C | ROHS3 Compliant | 6100 |
| CY74FCT16543CTPVC | Texas Instruments | 74FCT | Obsolete | 56-BSSOP (0.295", 7.50mm) | 4.5V ~ 5.5V | 32mA / 64mA | -40°C ~ 85°C | ROHS3 Compliant | 1310 |
| CY74FCT16646ATPVC | Texas Instruments | 74FCT | Obsolete | 56-BSSOP (0.295", 7.50mm) | 4.5V ~ 5.5V | 32mA / 64mA | -40°C ~ 85°C | ROHS3 Compliant | 863 |
| CY74FCT16646CTPVC | Texas Instruments | 74FCT | Obsolete | 56-BSSOP (0.295", 7.50mm) | 4.5V ~ 5.5V | 32mA / 64mA | -40°C ~ 85°C | ROHS3 Compliant | 827 |
| CY74FCT16652ATPVC | Texas Instruments | 74FCT | Obsolete | 56-BSSOP (0.295", 7.50mm) | 4.5V ~ 5.5V | 32mA / 64mA | -40°C ~ 85°C | ROHS3 Compliant | 2144 |
| CY74FCT16652CTPVC | Texas Instruments | 74FCT | Obsolete | 56-BSSOP (0.295", 7.50mm) | 4.5V ~ 5.5V | 32mA / 64mA | -40°C ~ 85°C | ROHS3 Compliant | 1250 |
| CY74FCT16952ATPVC | Texas Instruments | 74FCT | Obsolete | 56-BSSOP (0.295", 7.50mm) | 4.5V ~ 5.5V | 32mA / 64mA | -40°C ~ 85°C | ROHS3 Compliant | 1364 |
| SN74ABT16470DL | Texas Instruments | 74ABT | Active | 56-BSSOP (0.295", 7.50mm) | 4.5V ~ 5.5V | 32mA / 64mA | -40°C ~ 85°C | ROHS3 Compliant | 1027 |
| SN74ABT16543DL | Texas Instruments | 74ABT | Active | 56-BSSOP (0.295", 7.50mm) | 4.5V ~ 5.5V | 32mA / 64mA | -40°C ~ 85°C | ROHS3 Compliant | 1900 |
Engineering Selection Recommendations
Primary Recommendation: SN74ABT16952DLR (Texas Instruments) is the preferred substitute. It maintains identical electrical specifications and package footprint (56-BSSOP) to the original 74ABT16952CSSC while offering active product status and ROHS3 compliance. This part provides the highest inventory availability (6100 units) and direct form-fit-function compatibility.
Alternative with Package Variation: SN74ABT16952DGGR (Texas Instruments) offers active status and ROHS3 compliance with the same electrical specifications. The 56-TFSOP package (0.240", 6.10mm width) is narrower than the original 56-BSSOP (0.295", 7.50mm width), requiring PCB layout verification before implementation.
Parametric Equivalents: Parts from the 74FCT series (CY74FCT16543CTPVC, CY74FCT16646ATPVC, CY74FCT16646CTPVC, CY74FCT16652ATPVC, CY74FCT16652CTPVC, CY74FCT16952ATPVC) and additional 74ABT series parts (SN74ABT16470DL, SN74ABT16543DL) maintain all critical electrical parameters and package compatibility. These parts are classified as obsolete or active and carry ROHS3 compliance. Selection among these options should prioritize inventory availability and lead time requirements.
Frequently Asked Questions (FAQ)
Q: Can SN74ABT16952DGGR be used as a direct replacement for 74ABT16952CSSC?
A: SN74ABT16952DGGR is electrically equivalent with identical output current specifications (32mA/64mA), supply voltage range (4.5V ~ 5.5V), and operating temperature (-40°C ~ 85°C). However, the package footprint differs: 56-TFSOP (0.240", 6.10mm width) versus the original 56-BSSOP (0.295", 7.50mm width). PCB layout compatibility must be verified before substitution.
Q: What is the difference between 74ABT and 74FCT series parts in this list?
A: Both series maintain identical electrical specifications for this application: 2-element, 8-bit non-inverting transceivers with 3-state output, 32mA/64mA output current, and 4.5V ~ 5.5V supply voltage. The primary distinction is product status: 74ABT series parts (SN74ABT16952DLR, SN74ABT16470DL, SN74ABT16543DL) are active, while 74FCT series parts are obsolete.
Q: Is ROHS3 compliance required for my application?
A: The original 74ABT16952CSSC is REACH Unaffected. All substitute parts listed carry either ROHS3 Compliant or REACH Unaffected status. Verify your application's compliance requirements before final part selection.
Q: Which substitute part has the best inventory availability?
A: SN74ABT16952DLR offers the highest inventory (6100 units) among all listed substitutes, combined with active product status, identical package footprint, and ROHS3 compliance.
Q: Are all substitute parts surface mount?
A: Yes. All parts listed maintain surface mount technology with 56-BSSOP or 56-TFSOP packages. Mounting type compatibility is preserved across all substitutes.
Q: Can I use SN74ABT16470DL or SN74ABT16543DL as substitutes?
A: SN74ABT16470DL and SN74ABT16543DL are parametric equivalents with identical electrical specifications and package footprint (56-BSSOP). Both are active products with ROHS3 compliance. These parts are suitable substitutes when the specific base part number (74ABT16952) is not available.
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