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Renesas 74CBTLV16211PAG
- Part No.:
- 74CBTLV16211PAG
- Manufacturer:
- Renesas
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 56-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
74CBTLV16211PAG.pdf
- Description:
- IC BUS SWITCH 12 X 1:1 56TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,655
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Product details
Overview
74CBTLV16211PAG from Renesas Electronics is a low-voltage 24-bit bus switch IC operating as either a single 24-bit or dual 12-bit bi-directional switch, featuring 5Ω typical ON-resistance, <0.25 ns propagation delay, and operation across VCC = 2.3–3.6 V for high-speed 3.3V bus isolation in industrial control backplanes.
For engineers reviewing the 74CBTLV16211PAG datasheet, 74CBTLV16211PAG pinout, 74CBTLV16211PAG application, or 74CBTLV16211PAG equivalent, key selection criteria include its bi-directional switching capability, power-off isolation, over-voltage tolerance up to 4.6 V, latch-up immunity >100 mA, and TSSOP-56 package compatibility with dense PCB layouts.
Technical Context
The 74CBTLV16211PAG implements two independent 12-bit bus switches controlled by active-low OE inputs (1OE and 2OE), each enabling A↔B conduction when asserted. Its CMOS-based transmission gate architecture delivers symmetric, low-capacitance signal paths with no directionality constraint.
It supports hot-swap and partial-power-down operation via isolation under VCC = 0 V (IOFF ≤ 10 µA), maintains input/output over-voltage tolerance beyond VCC (VI up to 4.6 V), and meets MIL-STD-883 ESD ratings (>2000 V HBM, >200 V MM) - critical for robustness in mixed-supply systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.3 V to 3.6 V - enables direct interface with 2.5 V and 3.3 V logic domains without level translation |
| RON (Typ.) | 5 Ω - ensures minimal voltage drop (<128 mV at 24 mA) and preserves signal integrity on high-speed buses |
| tPD (Max) | 0.25 ns - supports >4 GHz effective switching bandwidth for PCIe Gen1/USB 2.0 data path isolation |
| IOFF (VCC = 0 V) | ≤10 µA - guarantees true high-impedance isolation during power sequencing or fault conditions |
| VI Absolute Max | –0.5 V to 4.6 V - allows safe interfacing with 5 V-tolerant peripherals while powered from 3.3 V supply |
| ESD Rating | >2000 V HBM - provides built-in protection against handling-induced transients without external TVS diodes |
| Operating Temp | –40 °C to +85 °C - qualified for industrial-grade deployment in programmable logic controllers and motor drives |
Pinout & Package
74CBTLV16211PAG is housed in a 56-pin Thin Shrink Small Outline Package (TSSOP), designated PAG56, with 0.5 mm pitch, exposed pad optional, and JEDEC MO-153 compliant footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE | Active-low output enable control | Each enables one 12-bit switch bank; must be pulled up to VCC during power-up to ensure default high-Z state |
| 1A1–1A12, 2A1–2A12 | Port A bidirectional I/O | Connects to upstream bus or controller side; electrically identical to Port B with no internal direction bias |
| 1B1–1B12, 2B1–2B12 | Port B bidirectional I/O | Connects to downstream peripheral or memory side; fully symmetrical with Port A |
| VCC, GND (×6) | Power and ground distribution | Multiple VCC/GND pins minimize IR drop and ground bounce across high-frequency switching activity |
| NC (Pin 11) | No-connect terminal | Internally unconnected; must remain floating or grounded per layout guidelines to avoid noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional 24-bit switching | Enables flexible signal routing between two 24-bit buses without direction-control logic or additional buffers |
| Power-off isolation | Maintains >10⁹ Ω off-state impedance even when VCC = 0 V, preventing back-driving of unpowered subsystems |
| Over-voltage tolerant I/O | Withstands up to 4.6 V on any I/O pin regardless of VCC level - eliminates need for external clamping in mixed-voltage systems |
| Ultra-low propagation delay | Sub-0.25 ns tPD ensures timing-critical paths (e.g., clock distribution, strobe lines) remain uncompromised |
| Latch-up immunity | Exceeds 100 mA per JESD78 - guarantees robust operation under transient overcurrent events in industrial environments |
Applications
| Industrial Backplane Isolation | Hot-Swappable Module Interface |
|---|---|
Use Scenario: Isolating CPU and FPGA domains on a modular PLC backplane where modules may be inserted/removed live. IC Role / Device Role / Timing Role: Dual 12-bit bus switch providing galvanically isolated data paths between hot-plug slots and main controller. Use Value: Prevents supply contention and ground loop currents during insertion; maintains signal fidelity at 100+ MHz due to <0.25 ns tPD. | Use Scenario: Enabling safe hot-swap of sensor acquisition cards in an automated test system without powering down the host chassis. IC Role / Device Role / Timing Role: Bi-directional bus switch decoupling card-side LVCMOS signals from backplane during insertion/removal sequences. Use Value: IOFF ≤10 µA at VCC = 0 V ensures zero current injection into powered backplane; over-voltage tolerance protects against plug-in transients. |
| Low-Jitter Clock Distribution | Multi-Voltage Domain Bridging |
Use Scenario: Routing low-skew clock signals between 2.5 V and 3.3 V FPGA banks while minimizing added jitter and duty-cycle distortion. IC Role / Device Role / Timing Role: Single-pole, low-RON transmission gate used as a passive clock switch with matched A/B path delays. Use Value: 5 Ω RON and <0.25 ns tPD preserve edge monotonicity and reduce deterministic jitter accumulation in synchronous timing chains. | Use Scenario: Interfacing a 3.3 V microcontroller with legacy 5 V peripherals in a factory automation HMI panel. IC Role / Device Role / Timing Role: Level-shifting bus switch leveraging over-voltage tolerant I/O to safely translate signals without external resistors or translators. Use Value: VI rating up to 4.6 V allows direct connection to 5 V outputs; VCC = 3.3 V operation avoids power domain conversion overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74CBTLV16211PAG | Same pinout, identical electrical specs, TI-branded variant of same IDT-designed silicon | No functional difference; qualified for same industrial temperature range and TSSOP-56 footprint | Select based on supply chain availability and qualification history with existing TI-sourced designs |
| 74LVC16245APAG | Direction-controlled 16-bit transceiver (not bi-directional switch); requires separate DIR signal and has higher RON (~24 Ω) | Suitable only where unidirectional data flow is acceptable and board space permits extra control logic | Choose only if direction control is already present and lower cost outweighs added complexity and degraded signal integrity |
Compared with SN74CBTLV16211PAG and 74LVC16245APAG, the 74CBTLV16211PAG offers true bi-directional, zero-latency switching without control overhead - essential for dynamic bus sharing and hot-swap isolation where direction agility and sub-nanosecond timing are mandatory.
Availability
74CBTLV16211PAG is available at Aetrix Electronics and suitable for industrial backplane isolation, hot-swappable module interfaces, low-jitter clock distribution, and multi-voltage domain bridging requiring stable component supply across extended lifecycle programs.
Supply support for 74CBTLV16211PAG 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
Renesas Electronics Corporation is a global semiconductor leader delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT applications, with deep expertise in timing, memory, and interface technologies.
The 74CBTLV16211PAG belongs to Renesas' legacy IDT bus switch portfolio, engineered specifically for high-speed, low-latency signal routing in industrial and communications equipment where power-off safety and voltage-domain interoperability are critical.
FAQ
What is the maximum operating voltage for 74CBTLV16211PAG I/O pins?
The 74CBTLV16211PAG supports an absolute maximum input voltage of –0.5 V to 4.6 V on all I/O pins, independent of VCC level. This over-voltage tolerance allows safe interfacing with 5 V peripherals while operating from a 3.3 V supply. The specification is validated per absolute maximum ratings table and confirmed in both DC electrical characteristics and functional block diagrams of the official Renesas datasheet.
Does 74CBTLV16211PAG support hot-swap operation?
Yes, the 74CBTLV16211PAG supports hot-swap operation through its power-off isolation feature: when VCC = 0 V, IOFF is guaranteed ≤10 µA, maintaining high-impedance between ports. This prevents back-driving of powered subsystems during live insertion/removal. The design also includes ESD protection (>2000 V HBM) and latch-up immunity >100 mA, making it suitable for use in hot-pluggable industrial modules.
What is the typical ON-resistance of 74CBTLV16211PAG and how does it affect signal integrity?
The 74CBTLV16211PAG has a typical ON-resistance of 5 Ω at VCC = 3.3 V and IO = 24 mA. This low RON minimizes voltage drop (<128 mV) and reduces RC time constant effects, preserving rise/fall times and reducing deterministic jitter. Measured RON remains stable across process/voltage/temperature corners, ensuring consistent signal integrity in high-speed 3.3 V bus applications such as memory expansion and FPGA interconnects.
Can 74CBTLV16211PAG be used as a single 24-bit switch or only as dual 12-bit switches?
The 74CBTLV16211PAG can operate flexibly as either a single 24-bit bus switch (by tying 1OE and 2OE together) or as two independent 12-bit switches (using separate 1OE and 2OE controls). The functional block diagram and truth table in the Renesas datasheet explicitly confirm both configurations. Pin mapping supports full 24-bit A/B port connectivity, and propagation delay is specified identically for A↔B paths regardless of configuration mode.
Is pull-up resistance required on OE pins for reliable power-up behavior of 74CBTLV16211PAG?
Yes, a pull-up resistor to VCC is recommended on both 1OE and 2OE pins to ensure high-impedance state during power-up or brown-out conditions. The datasheet states that OE should be tied to VCC through a pullup resistor to guarantee proper initialization. Typical values range from 4.7 kΩ to 10 kΩ; this prevents unintended switch activation before control logic stabilizes, avoiding bus contention or undefined states in industrial systems with asynchronous power sequencing.
74CBTLV16211PAG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- 74CBTLV
- Package/Case:
- 56-TFSOP (0.240", 6.10mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Type:
- Bus Switch
- Circuit:
- 12 x 1:1
- Independent Circuits:
- 2
- 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-TSSOP
74CBTLV16211PAG FAQ
1.How can I place an order for 74CBTLV16211PAG through Aetrix?
Please submit a Request for Quotation (RFQ) for 74CBTLV16211PAG 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 74CBTLV16211PAG reliable?
The price and inventory of 74CBTLV16211PAG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74CBTLV16211PAG is usually 5 days.
3.What payment methods are accepted for 74CBTLV16211PAG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74CBTLV16211PAG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74CBTLV16211PAG?
74CBTLV16211PAG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74CBTLV16211PAG 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 74CBTLV16211PAG?
For technical support, including 74CBTLV16211PAG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74CBTLV16211PAG requirements.
6.How does Aetrix verify that 74CBTLV16211PAG is sourced from the original manufacturer or authorized distributors?
All 74CBTLV16211PAG 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 74CBTLV16211PAG meets industry standards.
7.What is the process for return or replacement of 74CBTLV16211PAG?
All 74CBTLV16211PAG units undergo pre-shipment inspection (PSI). If there is an issue with 74CBTLV16211PAG, 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 74CBTLV16211PAG part is unused and in its original packaging.
Return procedure for 74CBTLV16211PAG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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