74CBTD16211DGGR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments 74CBTD16211DGGR is a 12-channel 1:1 CMOS bus switch with individual output enable controls housed in a 56-pin TSSOP package. It provides near-zero propagation delay switching for 3.3 V logic buses with minimal signal degradation. Available in stock with competitive pricing and worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 56
- Lifecycle
- ACTIVE
- Datasheet
- 74CBTD16211DGGR Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of 74CBTD16211DGGR?
- 12 independent 1:1 CMOS bus switch channels with near-zero propagation delay, enabling transparent bus connection and isolation without signal level translation
- Individual output enable control per channel group allowing selective bus multiplexing and partial isolation on wide 12-bit or wider data bus architectures
- 56-pin TSSOP package offering compact footprint for high-density board designs supporting 3.3 V logic buses in processors, FPGAs, and memory interface routing
What is 74CBTD16211DGGR used for?
The 74CBTD16211DGGR is used in processor-to-memory bus routing, FPGA I/O expansion, and backplane switching applications where 12 channels of transparent 1:1 bus switching are needed on 3.3 V logic buses without active signal buffering delays. It enables safe hot-swap bus isolation in modular systems by disconnecting a board from the main data bus via the enable control pin before card insertion or removal. The 56-pin TSSOP footprint integrates dense channel count in space-constrained networking, telecom, and server designs.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the 74CBTD16211DGGR datasheet?
74CBTD16211DGGR Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for 74CBTD16211DGGR?
Compatible alternatives and drop-in replacements for 74CBTD16211DGGR:
Bus Driver, CBT/FST/QS/5C/B Series, 2-Func, 12-Bit, True Output, CMOS, PDSO56
Frequently Asked Questions
How many independent switch channels does the 74CBTD16211DGGR provide, and what bus width does that support?
The 74CBTD16211DGGR integrates 12 independent 1:1 CMOS switch channels in a single 56-pin TSSOP package. This directly maps to a 12-bit bus width, allowing a processor address or data bus of 12 bits to be switched with a single device. For wider buses such as 16-bit or 32-bit paths, multiple devices can be paralleled with no additional glue logic.
What propagation delay and signal integrity characteristics does the 74CBTD16211DGGR offer for high-speed bus switching?
CMOS bus switches like the 74CBTD16211DGGR rely on a low on-resistance FET switch rather than active buffering, resulting in near-zero propagation delay (typically well under 1 ns). The on-resistance of a few ohms combined with the PCB trace capacitance forms an RC filter, but at signal frequencies below 100 MHz the effect is negligible for standard DDR or LVTTL logic levels. This makes the device suitable for 3.3 V buses operating at tens of megahertz without added latency.
How does the enable control on 74CBTD16211DGGR help with hot-swap bus isolation in modular systems?
The output enable input allows the host controller to deassert the enable signal before a board is inserted or removed, disconnecting all 12 channels simultaneously and preventing bus contention or latchup caused by floating or partially-powered cards. With transition times of the enable signal of a few nanoseconds, the isolation response is fast enough for PCI, VME, and custom backplane protocols that require bus isolation within a microsecond. This removes the need for external discrete FET bus switches on each line.
When would a designer choose the 74CBTD16211DGGR over a bidirectional level-shifting bus switch for a 3.3 V system?
When both sides of the bus operate at the same 3.3 V logic level and no voltage translation is needed, the 74CBTD16211DGGR's passive FET switch provides lower propagation delay and lower power consumption than an active level-shifting buffer. Active level translators add 2 ns to 5 ns of propagation delay and consume milliamps of supply current per channel. For a 12-channel 3.3 V-to-3.3 V bus with switching frequencies below 100 MHz, the CBT switch is the lower-cost, lower-latency solution.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 2026
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.
More from Texas Instruments
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“FindMyChip sourced our entire STM32 BOM in 48 hours when our usual distributor had 16-week lead times.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit