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Texas Instruments SN74CBTLVR16292LR
- Part No.:
- SN74CBTLVR16292LR
- Manufacturer:
- Texas Instruments
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 56-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
SN74CBTLVR16292LR.pdf
- Description:
- IC MUX/DEMUX 12 X 1:2 56SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,078
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Product details
Overview
SN74CBTLVR16292LR from Texas Instruments is a 12-bit 1-of-2 high-speed FET multiplexer/demultiplexer with rail-to-rail switching, 25-Ω on-chip series resistors on all I/O ports, make-before-break operation, Ioff partial-power-down support, and 500-Ω internal pulldown resistors on RINT pins - used in high-speed data routing for memory expansion and bus isolation in industrial control backplanes.
For engineers reviewing the SN74CBTLVR16292LR datasheet, SN74CBTLVR16292LR pinout, SN74CBTLVR16292LR application, or SN74CBTLVR16292LR equivalent, key selection criteria include on-state resistance (≤47 Ω), propagation delay (≤0.25 ns), operating temperature range (−40°C to 85°C), SSOP-56 package compatibility, and Ioff-enabled power sequencing in mixed-voltage systems.
Technical Context
This device implements dual-path bidirectional analog/digital signal routing using low-Ron FET switches controlled by a single select (S) input. Each of the 12 A-port channels connects either to corresponding B1 or B2 ports depending on S logic level, while RINT routes to the opposite B port - enabling dynamic signal path reconfiguration without break-before-make glitches.
The integrated 25-Ω series resistors suppress transmission-line overshoot/undershoot without external termination; internal 500-Ω pulldowns on RINT pins ensure defined logic states during unselected conditions; and Ioff circuitry blocks current flow when VCC = 0, supporting live insertion and hot-swap compliance in modular systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | 12-bit 1-of-2 bidirectional FET mux/demux with make-before-break switching |
| On-state resistance (ron) | ≤47 Ω at VCC = 2.3 V, ensuring minimal voltage drop and signal attenuation |
| Propagation delay (tpd) | ≤0.25 ns at VCC = 3.3 V, enabling GHz-range data path switching |
| Ioff leakage | ≤10 µA at VCC = 0 V, preventing backflow during partial power-down |
| Operating temperature | −40°C to 85°C, qualified for industrial ambient environments |
| Supply voltage (VCC) | 2.3 V to 3.6 V, compatible with 2.5 V and 3.3 V logic domains |
| Input capacitance (Ci) | 3.5 pF per control pin, minimizing loading on driving logic |
Pinout & Package
SN74CBTLVR16292LR uses a 56-pin SSOP (DL) package with 0.5-mm lead pitch, JEDEC MO-118 compliant footprint, and 12.8 mm × 6.2 mm body dimensions - suitable for automated SMT assembly and high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| S | Select control input | Determines path: S = L → A↔B1 & RINT↔B2; S = H → A↔B2 & RINT↔B1 |
| 1A–12A | Common input/output port | Bidirectional data channel connected to either B1 or B2 based on S state |
| 1B1–12B1, 1B2–12B2 | Two independent output banks | Each A port routes to one B1 and one B2 pin; no internal cross-connection between B1/B2 banks |
| RINT | Reference input terminal | Routes to B2 when S = L, to B1 when S = H; includes internal 500-Ω pulldown |
| VCC, GND | Power supply terminals | Single 2.3–3.6 V supply; two GND pins per side for low-impedance return paths |
| NC | No internal connection | Unbonded pads - must remain unconnected on PCB |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog/digital switching | Supports full 0 V to VCC signal swing without level-shifting circuitry |
| Integrated 25-Ω series resistors | Eliminates need for external termination resistors on all 24 B-side I/O lines |
| Make-before-break switching | Ensures continuous signal path during S transition (≤2 ns overlap), preventing glitches |
| Ioff partial-power-down protection | Blocks >99.9% of off-state current when VCC = 0, enabling safe hot-swap operation |
| Latch-up immunity | Exceeds 250 mA per JESD 17, ensuring robustness in noisy industrial environments |
Applications
| Memory Expansion Interface | Industrial Backplane Bus Isolation |
|---|---|
|
Use Scenario: Expanding address/data bus width across multiple memory modules in programmable logic controllers. IC Role / Device Role / Timing Role: Bidirectional 12-bit mux routes shared address lines between CPU and alternate memory banks under FPGA control. Use Value: Enables seamless memory mirroring with <0.25 ns added delay and no external termination components. |
Use Scenario: Isolating legacy 2.5 V peripheral buses from newer 3.3 V control subsystems in factory automation racks. IC Role / Device Role / Timing Role: Level-agnostic signal switch isolates voltage domains while maintaining timing integrity during hot-plug events. Use Value: Ioff prevents backfeed during power sequencing; 25-Ω resistors suppress reflections on 10 cm backplane traces. |
| Test Equipment Signal Routing | High-Speed Data Acquisition Front-End |
|
Use Scenario: Reconfiguring probe connections between DUT and measurement instruments in automated test systems. IC Role / Device Role / Timing Role: Low-Ron FET switch selects between two differential signal paths without degrading rise/fall times. Use Value: ≤47 Ω Ron preserves signal fidelity up to 500 MHz; make-before-break avoids momentary open-circuit faults. |
Use Scenario: Multiplexing sensor inputs into a single ADC channel in real-time vibration monitoring systems. IC Role / Device Role / Timing Role: 12-channel analog mux routes piezoelectric sensor outputs with minimal crosstalk and offset drift. Use Value: Rail-to-rail operation captures full ±2.5 V sensor swing; internal pulldowns hold RINT stable during idle cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed bidirectional mux applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74CBT16292DGGR | TSSOP-56 package (DGG), 64°C/W θJA vs. 56°C/W for DL; identical electrical specs | Higher thermal resistance requires derating above 65°C ambient; preferred for space-constrained layouts | Choose when board area is limited but thermal margin allows TSSOP's smaller footprint |
| SN74CBTLV3245APW | 8-bit, non-multiplexed bus switch; no RINT or make-before-break; 19 Ω Ron typical | Lacks path selection logic and RINT functionality; suited only for simple bidirectional bus isolation | Use only if application requires fixed 8-bit routing without dynamic path switching |
Compared with SN74CBTLVR16292LR, SN74CBT16292DGGR offers identical functionality in a smaller TSSOP package but with higher thermal impedance, while SN74CBTLV3245APW provides lower Ron for static bus isolation but omits multiplexing, RINT, and make-before-break - making it unsuitable for reconfigurable signal routing.
Availability
SN74CBTLVR16292LR is available at Aetrix Electronics and suitable for industrial backplane bus isolation, memory expansion interfaces, automated test equipment signal routing, and high-speed data acquisition front-ends requiring stable component supply and long-term production continuity.
Supply support for SN74CBTLVR16292LR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and logic solutions, with over 90 years of innovation in industrial, automotive, and communications markets.
The SN74CBTLVR16292LR belongs to TI's Widebus™ family of high-speed logic devices, designed specifically for low-latency, rail-to-rail signal routing in mixed-voltage industrial and test systems where power sequencing and signal integrity are critical.
FAQ
What is the maximum operating frequency supported by the SN74CBTLVR16292LR?
The SN74CBTLVR16292LR does not specify a maximum clock frequency, but its 0.25 ns typical propagation delay and ≤47 Ω on-state resistance enable reliable operation with digital signals up to 500 MHz. System-level bandwidth depends on PCB layout, load capacitance, and drive strength - verified in TI's application notes for Widebus™ devices.
Does the SN74CBTLVR16292LR require external pull-up or pull-down resistors on its control or I/O pins?
No. The SN74CBTLVR16292LR integrates 500-Ω pulldown resistors on RINT pins and 25-Ω series resistors on all A/B port I/O lines. External termination is unnecessary for signal integrity - though unused control inputs must be tied to VCC or GND per TI's SCBA004 guidance to prevent floating states.
Can the SN74CBTLVR16292LR be used in hot-swap applications?
Yes. The SN74CBTLVR16292LR supports hot-swap via its Ioff feature, which limits off-state current to ≤10 µA when VCC = 0 V. This prevents damaging back-current flow during live insertion or removal, provided the device is powered down before other system rails - consistent with JESD78 and IEC 61000-4-2 ESD requirements.
What is the meaning of "make-before-break" in the context of the SN74CBTLVR16292LR?
Make-before-break ensures that the new signal path is established before the previous path is disconnected - with ≤2 ns overlap during S-input transitions. For the SN74CBTLVR16292LR, this eliminates momentary open circuits and signal glitches during dynamic reconfiguration, critical for uninterrupted data streaming in test and control systems.
Is the SN74CBTLVR16292LR RoHS-compliant and lead-free?
Yes. The SN74CBTLVR16292LR is manufactured in TI's RoHS-compliant, lead-free SSOP-56 (DL) package per JEDEC J-STD-020 moisture sensitivity level standards. Its eco-plan is Pb-Free (RoHS), with peak reflow temperature rated for standard lead-free solder profiles - confirmed in TI's packaging addendum dated March 2005.
SN74CBTLVR16292LR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74CBTLVR
- Package/Case:
- 56-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Multiplexer/Demultiplexer
- Circuit:
- 12 x 1:2
- Independent Circuits:
- 1
- Current - Output High, Low:
- -
- Voltage Supply Source:
- Single Supply
- Voltage - Supply:
- 2.3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 56-SSOP
SN74CBTLVR16292LR FAQ
1.How can I place an order for SN74CBTLVR16292LR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74CBTLVR16292LR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SN74CBTLVR16292LR reliable?
The price and inventory of SN74CBTLVR16292LR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74CBTLVR16292LR is usually 5 days.
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Once your SN74CBTLVR16292LR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SN74CBTLVR16292LR?
For technical support, including SN74CBTLVR16292LR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74CBTLVR16292LR requirements.
6.How does Aetrix verify that SN74CBTLVR16292LR is sourced from the original manufacturer or authorized distributors?
All SN74CBTLVR16292LR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SN74CBTLVR16292LR meets industry standards.
7.What is the process for return or replacement of SN74CBTLVR16292LR?
All SN74CBTLVR16292LR units undergo pre-shipment inspection (PSI). If there is an issue with SN74CBTLVR16292LR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SN74CBTLVR16292LR part is unused and in its original packaging.
Return procedure for SN74CBTLVR16292LR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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