74CBTLV3245ADW Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
74CBTLV3245ADW is an 8-channel 1:1 low-voltage bus switch IC by Texas Instruments for 3.3 V and 2.5 V bus switching. Key specs: 8 bidirectional channels, sub-1 ns switching, 20-pin SOIC package. From stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- 74CBTLV3245ADW Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of 74CBTLV3245ADW?
- 8 independent bidirectional 1:1 FET bus switch channels for transparent low-voltage signal routing
- Sub-1 ns propagation delay enabling high-speed bus switching at data rates above 200 MHz
- 3.3 V and 2.5 V compatible with near-zero standby power in CMOS bus isolation applications
What is 74CBTLV3245ADW used for?
74CBTLV3245ADW is used in high-speed digital systems to multiplex or isolate 8-bit data buses between processors, memory, and peripheral controllers operating at 2.5 V or 3.3 V. Its near-transparent switching with sub-1 ns delay makes it suitable for DDR memory bus switching, PCIe sideband routing, and USB signal multiplexing in servers and embedded computing boards. The device enables hot-swap bus isolation in modular industrial systems and backplane designs where individual card segments must be disconnected without disrupting active bus traffic.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the 74CBTLV3245ADW datasheet?
74CBTLV3245ADW Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for 74CBTLV3245ADW?
Compatible alternatives and drop-in replacements for 74CBTLV3245ADW:
Bus Driver, CBTLV/3B Series, 8-Func, 8-Bit, True Output, CMOS, PDSO20
Bus Driver, CBTLV/3B Series, 8-Func, 8-Bit, True Output, CMOS, PDSO20
Frequently Asked Questions
What propagation delay does 74CBTLV3245ADW introduce and how does that affect high-speed bus performance?
74CBTLV3245ADW introduces less than 1 ns of propagation delay per channel, making it essentially transparent to signals at frequencies up to 200 MHz and above. This low latency allows the device to switch 8-bit data buses in DDR3 memory systems or high-speed peripheral interfaces without measurable timing degradation compared to direct PCB trace connections.
At what supply voltage does 74CBTLV3245ADW operate and which mixed-voltage bus designs can it support?
74CBTLV3245ADW operates from a 2.3 V to 3.6 V supply and is specifically designed for 3.3 V and 2.5 V bus switching, enabling direct interfacing with low-voltage logic families including LVCMOS and LVTTL. It supports bidirectional signal passing without directional control pins, simplifying designs where bus direction changes dynamically multiple times per clock cycle at speeds up to 200 MHz.
How does 74CBTLV3245ADW handle bus contention during simultaneous enable and disable transitions?
74CBTLV3245ADW uses FET-based pass gates with controlled transition timing to prevent bus contention spikes during enable and disable switching. The break-before-make characteristic ensures at least 3 ns isolation between disconnection of one bus segment and connection of another, preventing signal collisions that could corrupt data on 3.3 V address and data buses in multiplexed memory systems.
How many bus switch channels does 74CBTLV3245ADW provide and what is the package footprint?
74CBTLV3245ADW provides 8 independent bidirectional switch channels in a 20-pin SOIC package with 1.27 mm pin pitch, offering a board footprint of approximately 7.5 mm x 12.8 mm. This compares favorably to routing 8 discrete analog switches, which would require at least 2 to 4 separate ICs occupying 2 to 3 times the board area for equivalent 8-channel bus switching functionality.
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Why Buy from FindMyChip
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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