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Renesas 74CBTLV16212PAG
- Part No.:
- 74CBTLV16212PAG
- Manufacturer:
- Renesas
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 56-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
74CBTLV16212PAG.pdf
- Description:
- IC BUS FET EXC SW 12X2:2 56TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,327
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Product details
Overview
74CBTLV16212PAG from Renesas Electronics is a low-voltage 24-bit bus exchange switch with bi-directional 5Ω A/B switches, 2.3V–3.6V supply range, –40°C to +85°C industrial temperature operation, and TSSOP-56 package. It enables high-speed bus isolation and data port swapping in 3.3V systems such as memory interconnects and FPGA I/O expansion.
For engineers reviewing the 74CBTLV16212PAG datasheet, 74CBTLV16212PAG pinout, 74CBTLV16212PAG application, or 74CBTLV16212PAG equivalent, key selection criteria include break-before-make switching behavior, over-voltage tolerance up to 4.6V, isolation under power-off conditions, and propagation delay under 250ps for A↔B signal paths.
Technical Context
The 74CBTLV16212PAG implements a configurable 24-bit bus exchanger using three select inputs (S0–S2) to route between four signal ports (A1/A2/B1/B2), supporting both single 24-bit bus switching and dual 12-bit data exchange modes. Its CMOS-based transmission gate architecture delivers low on-resistance (5Ω typical) and sub-250ps propagation delay.
It features true break-before-make switching to prevent current shoot-through during port transitions, isolation under VCC = 0V (IOFF ≤ 10µA), and over-voltage tolerance on all I/O pins up to 4.6V regardless of VCC state - enabling safe hot-swap and mixed-voltage domain interfacing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.3V to 3.6V - supports standard 3.3V logic rails with margin for voltage droop or ripple. |
| RON (Typ.) | 5Ω - ensures minimal insertion loss and signal integrity for high-speed digital buses up to 500MHz. |
| tPD (A↔B) | 0.15ns to 0.25ns - enables sub-nanosecond timing-critical routing without added skew. |
| IOFF (VCC = 0V) | ≤10µA - guarantees robust signal isolation when powered down, preventing back-drive damage. |
| VI Absolute Max | –0.5V to 4.6V - allows safe interfacing with 5V-tolerant or hot-plug-capable systems. |
| ESD Rating | ≥2000V HBM, ≥200V MM - meets industrial-level ESD robustness requirements without external protection. |
| Operating Temp | –40°C to +85°C - qualified for extended industrial environments including factory automation and telecom infrastructure. |
Pinout & Package
TSSOP-56 (Package Code: PAG56), 0.5mm pitch, thermally enhanced with exposed pad (not electrically connected). Pin count and layout match JEDEC MO-153AC standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| S0–S2 | Data select control inputs | 3-bit binary code selects active port pair (A1↔B1, A1↔B2, A2↔B1, A2↔B2, or disconnect); TTL/CMOS compatible. |
| A1/A2/B1/B2 (x12 each) | Bi-directional I/O terminals | 24 total signal paths; each pair forms a low-RON transmission gate with no directionality or internal buffering. |
| VCC | Power supply | Single 2.3–3.6V rail powers all switches and control logic; no separate I/O or core voltage required. |
| GND (x4) | Ground reference | Four dedicated ground pins minimize ground bounce and improve noise immunity across high-speed switching. |
Key Features
| Feature | Design Value |
|---|---|
| Break-before-make switching | Guarantees zero current overlap during port transitions, eliminating shoot-through risk in multi-rail systems. |
| Over-voltage tolerant I/O | Withstands –0.5V to 4.6V on all pins independent of VCC, enabling safe interface with legacy 5V peripherals. |
| Power-off isolation | IOFF ≤ 10µA at VCC = 0V prevents back-driving and protects downstream circuitry during hot-swap events. |
| Low propagation delay | 0.15–0.25ns A↔B delay preserves signal edge integrity for DDR, PCIe Gen1, and parallel bus applications. |
| Latch-up immunity | Exceeds 100mA per JEDEC JESD78, ensuring robust operation in noisy industrial environments. |
Applications
| FPGA I/O Expansion | Memory Bus Isolation |
|---|---|
Use Scenario: Expanding limited FPGA I/O banks to drive multiple peripheral interfaces without re-spinning PCB layout. IC Role / Device Role / Timing Role: Bidirectional bus exchanger that dynamically routes signals between FPGA banks and external devices (ADCs, DACs, sensors). Use Value: Enables time-multiplexed use of shared traces via S0–S2 control, reducing pin count and board area while maintaining full-speed operation. | Use Scenario: Isolating DRAM or SRAM subsystems during system sleep or configuration changes to prevent leakage and contention. IC Role / Device Role / Timing Role: Low-RON, high-isolation switch placed between memory controller and memory modules. Use Value: Achieves <10µA off-state leakage at VCC = 0V, eliminating standby current draw and enabling true memory power gating. |
| Hot-Swappable Module Interface | Multi-Processor Data Exchange |
Use Scenario: Connecting field-replaceable modules (e.g., sensor cards, comms boards) to a host backplane with live insertion capability. IC Role / Device Role / Timing Role: Over-voltage tolerant bus switch protecting host-side logic from transient surges during module insertion/removal. Use Value: Withstands 4.6V transients on I/O pins regardless of VCC state, eliminating need for external TVS diodes or level shifters. | Use Scenario: Enabling synchronized data handoff between two microcontrollers or DSPs sharing a common memory-mapped bus. IC Role / Device Role / Timing Role: Configurable 12-bit bus exchanger routing data between Processor A and Processor B via S0–S2 address decoding. Use Value: Break-before-make action prevents bus contention during handoff, ensuring deterministic arbitration-free data transfer. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus exchange switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74CBT16212DGGR | Higher RON (6.5Ω typ.), wider VCC range (4.5–5.5V), no over-voltage tolerance beyond VCC+0.5V. | Designed for 5V-only systems; unsuitable for mixed-voltage or hot-swap scenarios requiring 4.6V tolerance. | Select only if operating exclusively at 5V with no need for power-off isolation or over-voltage robustness. |
| PI74CBTLV16212ZDEX | Identical electrical specs and pinout; manufactured by Diodes Inc. under license; same TSSOP-56 package and RoHS compliance. | No functional difference; validated drop-in replacement with identical timing, thermal, and reliability performance. | Preferred for supply chain diversification without design change or qualification effort. |
Compared with SN74CBT16212DGGR and PI74CBTLV16212ZDEX, the 74CBTLV16212PAG uniquely combines 4.6V over-voltage tolerance, sub-5Ω RON, and guaranteed break-before-make behavior - making it optimal for 3.3V industrial systems requiring hot-swap resilience and minimal signal degradation.
Availability
74CBTLV16212PAG is available at Aetrix Electronics and suitable for FPGA I/O expansion, memory bus isolation, and hot-swappable module interface applications requiring stable component supply, long-term industrial lifecycle support, and RoHS-compliant packaging.
Supply support for 74CBTLV16212PAG 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 microcontrollers, analog, power, and connectivity solutions for automotive, industrial, infrastructure, and IoT markets.
The 74CBTLV16212PAG belongs to Renesas' legacy IDT logic portfolio, designed specifically for high-speed, low-latency bus management in 3.3V industrial and communications equipment where signal integrity and power-state robustness are critical.
FAQ
What is the maximum operating voltage on the I/O pins of the 74CBTLV16212PAG?
The 74CBTLV16212PAG supports an absolute maximum I/O voltage of –0.5V to 4.6V, independent of VCC level. This over-voltage tolerance allows safe interfacing with higher-voltage peripherals or transient events without clamping diodes or level shifters. The specification is verified per ABSOLUTE MAXIMUM RATINGS table in the official Renesas datasheet DSC-5889/9.
Does the 74CBTLV16212PAG support break-before-make switching, and how is it implemented?
Yes, the 74CBTLV16212PAG implements hardware-enforced break-before-make switching across all 24 channels. Internal flow control circuitry ensures that one switch path fully opens before another closes, eliminating current overlap during S0–S2 transitions. This behavior is confirmed in the FUNCTION TABLE and block diagram, and prevents bus contention in multi-processor or hot-swap configurations.
What is the typical on-resistance (RON) of the 74CBTLV16212PAG, and how does it vary with voltage?
The 74CBTLV16212PAG has a typical on-resistance of 5Ω at VCC = 2.5V and IO = 64mA, and 5Ω at VCC = 3.3V and IO = 24mA. RON increases to 10–15Ω at lower control voltages (e.g., VI = 2.4V), as specified in the DC ELECTRICAL CHARACTERISTICS table. This low, stable RON preserves signal amplitude and rise/fall times in high-speed digital paths.
Can the 74CBTLV16212PAG be used when VCC = 0V, and what isolation performance is guaranteed?
Yes, the 74CBTLV16212PAG maintains functional isolation with VCC = 0V. Its IOFF parameter is guaranteed ≤10µA under this condition, ensuring no significant current flows between A and B ports. This enables safe back-driving prevention and hot-swap compatibility - a key feature confirmed in the DC ELECTRICAL CHARACTERISTICS section of the datasheet.
Is the 74CBTLV16212PAG pin-compatible with other members of the CBTLV162xx family?
Yes, the 74CBTLV16212PAG shares identical pinout, package (TSSOP-56), and function mapping with the CBTLV16210 and CBTLV16211 variants. Differences lie solely in channel count and select logic - the 16212 supports 24-bit exchange via S0–S2, while others offer 20-bit or fixed-path configurations. Pin compatibility is documented in Renesas' ordering information and pin configuration diagrams.
74CBTLV16212PAG 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 FET Exchange Switch
- Circuit:
- 12 x 2:2
- 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-TSSOP
74CBTLV16212PAG FAQ
1.How can I place an order for 74CBTLV16212PAG through Aetrix?
Please submit a Request for Quotation (RFQ) for 74CBTLV16212PAG 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 74CBTLV16212PAG reliable?
The price and inventory of 74CBTLV16212PAG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74CBTLV16212PAG is usually 5 days.
3.What payment methods are accepted for 74CBTLV16212PAG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74CBTLV16212PAG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74CBTLV16212PAG?
74CBTLV16212PAG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74CBTLV16212PAG 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 74CBTLV16212PAG?
For technical support, including 74CBTLV16212PAG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74CBTLV16212PAG requirements.
6.How does Aetrix verify that 74CBTLV16212PAG is sourced from the original manufacturer or authorized distributors?
All 74CBTLV16212PAG 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 74CBTLV16212PAG meets industry standards.
7.What is the process for return or replacement of 74CBTLV16212PAG?
All 74CBTLV16212PAG units undergo pre-shipment inspection (PSI). If there is an issue with 74CBTLV16212PAG, 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 74CBTLV16212PAG part is unused and in its original packaging.
Return procedure for 74CBTLV16212PAG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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