SN74CBTD3384DBQRIn StockTexas Instruments
SN74CBTD3384DBQR is a 5-channel 1:1 bus switch IC from Texas Instruments, featuring enable-low control, 4.5V–5.5V supply voltage, 50pF load capacitance, and ultra-low ON-state resistance. From $0.32 in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 24
- Lifecycle
- OBSOLETE
- Datasheet
- SN74CBTD3384DBQR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.3231(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 5-channel 1:1 unidirectional bus switch with enable-low control for flexible signal routing
- Wide supply voltage range of 4.5V to 5.5V ensures compatibility with standard 5V logic systems
- Ultra-low ON-state resistance minimizes signal distortion in high-speed bus switching applications
- 24-pin QSOP/SSOP package enables compact PCB layout for space-constrained designs
- CBT family bus switch supports live insertion and hot-swap applications
Applications
The SN74CBTD3384DBQR is widely used in computer motherboards and server backplanes for high-speed data bus switching and signal isolation. It is ideal for memory module interfaces, PCI/PCIe bus expansion, and multi-master bus architectures where controlled signal routing is required. This device also finds application in industrial control systems, telecommunications equipment, and consumer electronics requiring reliable 5V bus management.
Specifications
| YTEOL | 0 |
| Additional Feature | BUS SWITCH |
| Control Type | ENABLE LOW |
| Count Direction | UNIDIRECTIONAL |
| Family | CBT/FST/QS/5C/B |
| JESD-30 Code | R-PDSO-G24 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS DRIVER |
| Number of Bits | 5 |
| Number of Functions | 10 |
| Number of Ports | 2 |
| Output Characteristics | 3-STATE |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SSOP24,.24 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, SHRINK PITCH |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 1.5mA |
| Prop. Delay@Nom-Sup | 0.25ns |
| Propagation Delay (tpd) | 0.25ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.635mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the operating voltage range of the SN74CBTD3384DBQR?
The SN74CBTD3384DBQR operates over a supply voltage range of 4.5V to 5.5V, making it fully compatible with standard 5V TTL and CMOS logic systems commonly used in digital circuits and bus interfaces.
What package options are available for the SN74CBTD3384DBQR?
The SN74CBTD3384DBQR is available in a 24-pin QSOP (Quarter Small Outline Package) and SSOP (Shrink Small Outline Package), both offering a compact footprint suitable for high-density PCB designs with standard 0.635mm or similar pitch.
What are typical applications for the SN74CBTD3384DBQR bus switch?
Typical applications include data bus switching in computer motherboards, memory module interfaces (DDR/SDRAM), PCI and PCIe bus expansion cards, industrial control backplanes, and telecommunications equipment requiring reliable 5-channel unidirectional signal switching with enable control.
What is the load capacitance specification for the SN74CBTD3384DBQR?
The SN74CBTD3384DBQR is rated for a load capacitance (CL) of 50pF, which is suitable for typical PCB trace loads encountered in standard digital bus applications and ensures signal integrity at operating frequencies.
Are there compatible alternatives to the SN74CBTD3384DBQR?
Compatible alternatives include other CBT/FST/QS family bus switches with similar 5-channel 1:1 configurations. Texas Instruments offers related parts in the SN74CBTD and SN74CBT series; always verify pinout, voltage, and logic compatibility before substitution.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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