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Renesas 74CBTLV3384QG8
- Part No.:
- 74CBTLV3384QG8
- Manufacturer:
- Renesas
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 24-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
74CBTLV3384QG8.pdf
- Description:
- IC BUS SWITCH 10BIT LV 24-QSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,110
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Product details
Overview
74CBTLV3384QG8 from Renesas Electronics is a low-voltage 10-bit bi-directional bus switch IC with dual 5-bit configuration, 5Ω typical on-state resistance (RON), 0.25ns max propagation delay at 3.3V, and operation across –40°C to +85°C industrial temperature range. It enables high-speed 3.3V bus isolation and switching in memory expansion and peripheral interconnect applications.
For engineers reviewing the 74CBTLV3384QG8 datasheet, 74CBTLV3384QG8 pinout, 74CBTLV3384QG8 application, or 74CBTLV3384QG8 equivalent, key selection criteria include VCC range (2.3–3.6V), OE-controlled dual 5-bit switching, over-voltage tolerance up to 4.6V, power-off isolation, and QSOP-24 package compatibility.
Technical Context
The 74CBTLV3384QG8 implements two independent 5-bit bus switches, each controlled by its own active-low output-enable (1OE, 2OE) input. Its CMOS-based transmission-gate architecture delivers symmetric A↔B conduction with minimal RC delay, supporting bidirectional signal flow without direction control pins.
It features power-off isolation: when VCC = 0V, IOFF leakage remains ≤50µA, preventing back-driving of powered subsystems. The device maintains over-voltage tolerance (VI/O up to 4.6V) and latch-up immunity (>100mA), enabling safe interfacing between mixed-voltage domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.3V to 3.6V - supports core logic supply rails in modern 3.3V systems without level-shifting |
| RON (Typ) | 5Ω at VCC = 2.5V, IO = 24mA - ensures minimal voltage drop and signal integrity for 100MHz+ data buses |
| tPD (Max) | 0.25ns at VCC = 3.3V - enables sub-nanosecond timing-critical switching in high-speed memory and I/O expansion paths |
| IOFF (Max) | 50µA at VCC = 0V - guarantees robust isolation during hot-swap or partial-power-down sequences |
| VI/O Tolerance | –0.5V to +4.6V - allows safe connection to 5V-tolerant peripherals without external clamping |
| Operating Temp | –40°C to +85°C - qualified for industrial-grade embedded control, networking, and automation equipment |
| ESD Rating | 2000V HBM, 200V MM - meets MIL-STD-883 requirements for handling robustness in manufacturing and field service |
Pinout & Package
74CBTLV3384QG8 is packaged in a 24-pin Quarter-Size Small Outline Package (QSOP), pin-compatible with industry-standard PCG24 footprint, 3.9mm × 8.7mm body size, 0.635mm lead pitch, and gull-wing leads suitable for automated SMT assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 22 | GND | Ground reference for all internal circuitry and signal return path |
| 2–6, 17–21 | 1A1–1A5 / 2A1–2A5 | Input/output port A side for first/second 5-bit switch bank |
| 7–11, 12–16 | 1B1–1B5 / 2B1–2B5 | Input/output port B side for first/second 5-bit switch bank |
| 13, 24 | 1OE, 2OE | Active-low enable inputs - drive low to connect A↔B; high for high-Z isolation |
| 23 | VCC | Primary power supply (2.3–3.6V); powers internal logic and switch transistors |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 5-bit switching | Enables flexible partitioning - e.g., one bank for address lines, another for data lines - without shared control constraints |
| 5Ω typical on-resistance | Minimizes insertion loss and preserves edge rate for signals up to 300Mbps in parallel bus interfaces |
| Power-off isolation (IOFF ≤ 50µA) | Prevents current backflow into unpowered sections, critical for hot-plug PCIe add-in cards and modular backplanes |
| Over-voltage tolerant I/O (up to 4.6V) | Eliminates need for external protection diodes when interfacing with legacy 5V peripherals or test equipment |
| Industrial temperature range (–40°C to +85°C) | Validated performance across full operating envelope - no derating required in fanless industrial controllers |
Applications
| Memory Expansion Interface | Peripheral I/O Multiplexing |
|---|---|
Use Scenario: Adding SRAM or Flash memory to microcontroller-based PLC modules where board space limits discrete buffering. IC Role / Device Role / Timing Role: Bidirectional 10-bit bus switch isolating MCU data/address bus from memory during reconfiguration or sleep mode. Use Value: Enables zero-wait-state access with <0.25ns propagation delay and eliminates contention during memory remapping sequences. | Use Scenario: Sharing a single UART or SPI interface among multiple sensors in an industrial gateway with dynamic sensor selection. IC Role / Device Role / Timing Role: Low-latency, OE-controlled signal routing hub that connects host controller to selected peripheral without protocol translation. Use Value: Provides deterministic <5ns enable/disable timing and 5Ω RON to maintain signal fidelity across 10Mbps serial links. |
| Hot-Swappable Module Backplane | Legacy-to-Modern Voltage Translation |
Use Scenario: Isolating powered-backplane slots from main system bus during card insertion/removal in telecom line cards. IC Role / Device Role / Timing Role: Fail-safe bus gate ensuring zero current injection (IOFF ≤ 50µA) when VCC is absent during hot-swap events. Use Value: Meets IEC 61000-4-2 Level 4 ESD immunity and prevents latch-up during live insertion per Telcordia GR-1089. | Use Scenario: Interfacing 3.3V FPGA I/O banks with 5V industrial analog front-end ICs in test instrumentation. IC Role / Device Role / Timing Role: Over-voltage tolerant (4.6V) passive switch enabling direct connection without level shifters or resistive dividers. Use Value: Reduces BOM count by eliminating discrete translation components while maintaining 100% signal integrity at 50MHz clock rates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74CBTLV3384PWR | Same 10-bit dual-switch function, identical RON (5Ω) and tPD (0.25ns), but in TSSOP-24 (PGG24) package | Requires PCB layout change due to different footprint (TSSOP vs QSOP); same thermal and electrical behavior | Select when TSSOP-24 is preferred for higher-density layouts or existing design reuse |
| 74LVC1G3157GW | Single-pole double-throw (SPDT) 1-bit switch only; RON = 6Ω, tPD = 0.2ns, but not scalable to 10-bit width | Not suitable for parallel bus isolation; limited to point-to-point signal routing or analog multiplexing | Choose only for low-channel-count, space-constrained designs where full 10-bit switching is unnecessary |
Compared with SN74CBTLV3384PWR and 74LVC1G3157GW, the 74CBTLV3384QG8 uniquely delivers 10-bit parallel switching in QSOP-24 with guaranteed industrial temp operation and power-off isolation - making it optimal for memory expansion and modular backplane architectures requiring mechanical and thermal compatibility with legacy QSOP footprints.
Availability
74CBTLV3384QG8 is available at Aetrix Electronics and suitable for industrial control systems, telecommunications line cards, and embedded memory expansion modules requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for 74CBTLV3384QG8 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 applications.
The 74CBTLV3384QG8 belongs to Renesas' CBTLV low-voltage bus switch family, engineered specifically for high-speed, low-latency, and power-aware interconnect in industrial and communications equipment.
FAQ
What is the maximum operating voltage for the I/O pins of the 74CBTLV3384QG8?
The 74CBTLV3384QG8 supports an absolute maximum I/O voltage range of –0.5V to +4.6V, independent of VCC. This over-voltage tolerance allows safe interfacing with 5V peripherals even when VCC is at 3.3V or lower, eliminating the need for external clamping diodes in mixed-voltage systems.
Does the 74CBTLV3384QG8 support hot-swap functionality?
Yes, the 74CBTLV3384QG8 supports hot-swap via its power-off isolation feature: when VCC = 0V, IOFF leakage is guaranteed ≤50µA. This prevents back-driving of powered subsystems during live insertion or removal, making it suitable for modular backplanes and hot-pluggable I/O cards compliant with IEC 61000-4-2 and Telcordia GR-1089.
How does the dual OE control work on the 74CBTLV3384QG8?
The 74CBTLV3384QG8 has two independent active-low output-enable inputs: 1OE controls bits 1A1–1A5 ↔ 1B1–1B5, and 2OE controls 2A1–2A5 ↔ 2B1–2B5. Driving either OE low enables its associated 5-bit switch; driving it high places both ports in high-impedance state - enabling flexible partitioning of address/data buses or independent peripheral gating.
What is the typical on-state resistance (RON) of the 74CBTLV3384QG8 and how does it vary with supply voltage?
The 74CBTLV3384QG8 exhibits a typical RON of 5Ω at VCC = 2.5V (IO = 24mA) and 5Ω at VCC = 3.3V (IO = 24mA). At lower VCC (2.3V), RON increases to 8Ω max; at higher VCC (3.6V), it drops to 5Ω min. This tight RON consistency ensures predictable voltage drop and signal integrity across the full 2.3–3.6V operating range.
Is the 74CBTLV3384QG8 pin-compatible with other members of the CBTLV3384 family?
Yes, the 74CBTLV3384QG8 shares identical pinout and functionality with all variants in the CBTLV3384 family, including 74CBTLV3384PGG8 (TSSOP-24) and 74CBTLV3384QG (QSOP-24 tube version). All use the same PCG24 footprint, pin numbering, and electrical behavior - differing only in packaging format and reel/tube packaging.
74CBTLV3384QG8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- 74CBTLV
- Package/Case:
- 24-SSOP (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Bus Switch
- Circuit:
- 5 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:
- 24-QSOP
74CBTLV3384QG8 FAQ
1.How can I place an order for 74CBTLV3384QG8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74CBTLV3384QG8 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 74CBTLV3384QG8 reliable?
The price and inventory of 74CBTLV3384QG8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74CBTLV3384QG8 is usually 5 days.
3.What payment methods are accepted for 74CBTLV3384QG8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74CBTLV3384QG8 transactions.
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4.How is shipping managed for 74CBTLV3384QG8?
74CBTLV3384QG8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74CBTLV3384QG8 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 74CBTLV3384QG8?
For technical support, including 74CBTLV3384QG8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74CBTLV3384QG8 requirements.
6.How does Aetrix verify that 74CBTLV3384QG8 is sourced from the original manufacturer or authorized distributors?
All 74CBTLV3384QG8 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 74CBTLV3384QG8 meets industry standards.
7.What is the process for return or replacement of 74CBTLV3384QG8?
All 74CBTLV3384QG8 units undergo pre-shipment inspection (PSI). If there is an issue with 74CBTLV3384QG8, 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 74CBTLV3384QG8 part is unused and in its original packaging.
Return procedure for 74CBTLV3384QG8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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