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CBTS3306D,112 Bus Switch 1 x 1:1 Equivalent & Substitute Parts
Part Overview
The CBTS3306D,112 is a bus switch logic IC manufactured by NXP USA Inc., designed for 1 x 1:1 switching applications in 8-SO surface mount packaging. This component operates with single supply voltage between 4.5V and 5.5V across an operating temperature range of -40°C to 85°C. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | CBTS3306D,112 |
| Manufacturer | NXP USA Inc. |
| Category | Logic |
| Type | Bus Switch |
| Circuit Configuration | 1 x 1:1 |
| Independent Circuits | 2 |
| Voltage Supply | 4.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution for the CBTS3306D,112 is determined by strict equivalence across the following parameters:
- Circuit configuration: 1 x 1:1 bus switch topology
- Independent circuits: 2
- Voltage supply range: 4.5V ~ 5.5V
- Operating temperature range: -40°C ~ 85°C
- Package type: 8-SOIC (0.154", 3.90mm Width)
- RoHS3 compliance
- Moisture sensitivity level: 1 (Unlimited)
Substitute parts are grouped into two categories: manufacturer-recommended substitutes from Texas Instruments (active or last-time-buy status) and parametric equivalents from NXP Semiconductors and Texas Instruments. All listed substitutes maintain identical electrical specifications and mechanical compatibility with the original part.
Parameter Comparison
| Part Number | Manufacturer | Series | Circuit | Voltage Supply | Operating Temp | Package | Product Status | RoHS Status | MSL |
|---|---|---|---|---|---|---|---|---|---|
| CBTS3306D,112 | NXP USA Inc. | 74CBTS | 1 x 1:1 | 4.5V ~ 5.5V | -40°C ~ 85°C | 8-SOIC | Obsolete | ROHS3 | 1 |
| SN74CBT3306CDR | Texas Instruments | 74CBT | 1 x 1:1 | 4.5V ~ 5.5V | -40°C ~ 85°C | 8-SOIC | Active | ROHS3 | 1 |
| SN74CBT3306DR | Texas Instruments | 74CBT | 1 x 1:1 | 4.5V ~ 5.5V | -40°C ~ 85°C | 8-SOIC | Last Time Buy | ROHS3 | 1 |
| SN74CBTD3306CDR | Texas Instruments | 74CBTD | 1 x 1:1 | 4.5V ~ 5.5V | -40°C ~ 85°C | 8-SOIC | Active | ROHS3 | 1 |
| SN74CBTD3306DR | Texas Instruments | 74CBTD | 1 x 1:1 | 4.5V ~ 5.5V | -40°C ~ 85°C | 8-SOIC | Last Time Buy | ROHS3 | 1 |
| SN74CBTS3306DR | Texas Instruments | 74CBTS | 1 x 1:1 | 4.5V ~ 5.5V | -40°C ~ 85°C | 8-SOIC | Last Time Buy | ROHS3 | 1 |
| CBT3306D,112 | NXP Semiconductors | 74CBT | 1 x 1:1 | 4.5V ~ 5.5V | -40°C ~ 85°C | 8-SOIC | Active | ROHS3 | Vendor Undefined |
| SN74CBT3305CD | Texas Instruments | 74CBT | 1 x 1:1 | 4.5V ~ 5.5V | -40°C ~ 85°C | 8-SOIC | Active | ROHS3 | 1 |
| SN74CBT3306CD | Texas Instruments | 74CBT | 1 x 1:1 | 4.5V ~ 5.5V | -40°C ~ 85°C | 8-SOIC | Active | ROHS3 | 1 |
| SN74CBT3306D | Texas Instruments | 74CBT | 1 x 1:1 | 4.5V ~ 5.5V | -40°C ~ 85°C | 8-SOIC | Last Time Buy | ROHS3 | 1 |
| SN74CBTD3305CD | Texas Instruments | 74CBTD | 1 x 1:1 | 4.5V ~ 5.5V | -40°C ~ 85°C | 8-SOIC | Active | ROHS3 | 1 |
Engineering Selection Recommendations
For new designs and ongoing procurement, SN74CBT3306CDR (Texas Instruments, Active status) is the primary recommended substitute. This part maintains full electrical and mechanical compatibility with the obsolete CBTS3306D,112 while offering active product status and established supply chain availability.
For applications requiring extended component lifecycle, SN74CBTD3306CDR (Texas Instruments, 74CBTD series, Active status) provides an alternative with identical parametric specifications. The 74CBTD series designation indicates enhanced performance characteristics within the same electrical operating envelope.
The NXP Semiconductors part CBT3306D,112 (74CBT series, Active status) represents a direct equivalent from the original manufacturer's successor brand (Nexperia). This option is suitable for designs prioritizing manufacturer continuity.
Parts with Last Time Buy status (SN74CBT3306DR, SN74CBTD3306DR, SN74CBTS3306DR, SN74CBT3306D) remain electrically and mechanically compatible but indicate limited future availability. These should be considered only when inventory requirements align with manufacturer discontinuation timelines.
All recommended substitutes are ROHS3 compliant and maintain MSL 1 (Unlimited) moisture sensitivity classification, ensuring compatibility with standard manufacturing and storage protocols.
Frequently Asked Questions (FAQ)
Q: Can SN74CBT3306CDR directly replace CBTS3306D,112 without PCB modifications?
A: Yes. Both parts share identical 8-SOIC (0.154", 3.90mm Width) packaging, pin configuration, and electrical specifications (1 x 1:1 circuit, 4.5V ~ 5.5V supply, -40°C ~ 85°C operating range). No PCB layout changes are required.
Q: What is the difference between 74CBT, 74CBTS, and 74CBTD series designations?
A: All three series maintain identical electrical parameters for the 3306 circuit configuration. Series designation reflects internal design variants within the same functional specification. Selection between series should be based on product status and supply availability rather than electrical performance differences.
Q: Are there packaging format differences among the substitute parts?
A: Yes. Substitute parts are available in multiple packaging formats: Tape & Reel (TR), Cut Tape (CT), Tube, and Bulk. All formats contain the same die and electrical specifications. Selection depends on procurement volume and assembly line requirements. The 8-SOIC package dimensions remain constant across all formats.
Q: Is the CBT3306D,112 from NXP Semiconductors identical to the original CBTS3306D,112 from NXP USA Inc.?
A: Both parts are electrically and mechanically equivalent with identical specifications. The CBT3306D,112 represents the current Nexperia product line continuation. The primary difference is product status: CBT3306D,112 is Active, while CBTS3306D,112 is Obsolete.
Q: Which substitute offers the longest product lifecycle?
A: SN74CBT3306CDR and SN74CBTD3306CDR (both Active status from Texas Instruments) offer the longest confirmed product lifecycle. Parts designated Last Time Buy have defined discontinuation dates and should not be selected for new long-term designs.
Q: Do all substitutes maintain ROHS3 compliance?
A: Yes. All listed substitute parts are ROHS3 compliant. The CBT3306D,112 from NXP Semiconductors shows Vendor Undefined MSL classification but maintains ROHS3 compliance equivalent to the original part.
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