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Renesas 74CBTLV3384PGG8
- Part No.:
- 74CBTLV3384PGG8
- Manufacturer:
- Renesas
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 24-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74CBTLV3384PGG8.pdf
- Description:
- IC BUS SWITCH 5 X 1:1 24TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,039
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Product details
Overview
74CBTLV3384PGG8 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 data path routing applications.
For engineers reviewing the 74CBTLV3384PGG8 datasheet, 74CBTLV3384PGG8 pinout, 74CBTLV3384PGG8 application, or 74CBTLV3384PGG8 equivalent, key selection criteria include VCC range (2.3V–3.6V), OE-controlled dual-switch enable logic, over-voltage tolerance up to 4.6V, isolation under power-off, and TSSOP-24 package compatibility.
Technical Context
The 74CBTLV3384PGG8 implements two independent 5-bit bus switches, each controlled by its own active-low output-enable (OE) input. When OE is low, A and B ports are connected via low-resistance MOSFET pass gates; when high, both ports enter high-impedance isolation.
Its architecture supports bidirectional signal flow with no direction pin, relies on VCC-supplied bias for proper power-up sequencing, and maintains channel isolation even when VCC = 0V - critical for hot-swap and partial-power-down systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.3V to 3.6V - ensures compatibility with 2.5V and 3.3V logic domains without level translation |
| RON (Typ) | 5Ω at VCC = 2.5V, IO = 64mA - minimizes voltage drop and timing skew in high-speed data paths |
| tPD (Max) | 0.25ns at VCC = 3.3V - enables sub-nanosecond signal routing for DDR and parallel bus applications |
| IOFF (Max) | 50µA at VCC = 0V - guarantees robust off-state isolation during power sequencing or shutdown |
| VI/O Tolerance | –0.5V to +4.6V - allows safe interfacing with higher-voltage peripherals without external clamping |
| Operating Temp | –40°C to +85°C - qualified for industrial-grade embedded control and communications equipment |
| ESD Rating | >2000V HBM, >200V MM - meets MIL-STD-883 requirements for board-level reliability |
Pinout & Package
74CBTLV3384PGG8 is housed in a 24-pin Thin Shrink Small Outline Package (TSSOP), 4.4mm width, 0.65mm pitch, JEDEC MO-153 compliant. Pin 1 marked with dot; pin 12 = GND, pin 24 = VCC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5 19, 20, 21, 22, 23 | A-port inputs/outputs (1A1–1A5, 2A1–2A5) | Bidirectional data terminals for first and second 5-bit buses; no internal direction control |
| 6, 7, 8, 9, 10 14, 15, 16, 17, 18 | B-port inputs/outputs (1B1–1B5, 2B1–2B5) | Corresponding bidirectional endpoints; electrically mirrored to A ports through switch matrix |
| 11, 13 | 1OE, 2OE | Active-low enable controls - each independently activates its associated 5-bit switch pair |
| 12 | GND | Power return reference for all I/O and internal logic; must be low-impedance connection |
| 24 | VCC | Primary supply for switch bias and control circuitry; decoupling capacitor required near pin |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional 5Ω RON | Enables transparent, low-distortion signal coupling between 3.3V buses without direction pins or timing overhead |
| Power-off isolation | Maintains <50µA off-state leakage when VCC = 0V - prevents back-driving and bus contention during partial power-down |
| Over-voltage tolerant I/O | Withstands –0.5V to +4.6V at all A/B pins regardless of VCC state - eliminates need for external TVS or clamp diodes |
| Dual independent OE control | Allows dynamic partitioning of 10-bit path into two isolated 5-bit segments - supports flexible memory bank or peripheral multiplexing |
| Industrial temperature rating | Guaranteed operation from –40°C to +85°C - validated for use in factory automation, telecom line cards, and motor drives |
Applications
| Memory Expansion Interface | PCI/PCIe Slot Isolation |
|---|---|
Use Scenario: Adding secondary SRAM or Flash banks to microcontroller-based controllers without bus contention. IC Role / Device Role / Timing Role: Bidirectional 10-bit bus switch enabling on-demand connection between MCU data bus and expansion memory address/data lines. Use Value: Sub-0.25ns propagation delay preserves setup/hold timing margins; 5Ω RON avoids signal integrity degradation at 100+ MHz bus speeds. | Use Scenario: Isolating legacy PCI add-in cards from host system during hot-plug events or firmware updates. IC Role / Device Role / Timing Role: Dual 5-bit switch providing independent enable control for address and data lanes to prevent backfeed during slot reconfiguration. Use Value: Power-off isolation ensures zero current injection into powered host logic when card is removed or unpowered. |
| Multi-Processor Data Sharing | FPGA-to-ASIC Interfacing |
Use Scenario: Sharing shared memory or mailbox registers between two ARM Cortex-M cores operating at different power states. IC Role / Device Role / Timing Role: Low-latency, directionless bridge allowing either core to read/write shared resources without arbitration logic. Use Value: Independent OE pins let each core gate access to its half of the 10-bit path - reducing cross-core interference and simplifying firmware. | Use Scenario: Connecting FPGA I/O banks to ASIC subsystems where voltage domains differ slightly or timing budgets are tight. IC Role / Device Role / Timing Role: Voltage-tolerant bus switch absorbing minor domain mismatches while preserving nanosecond-scale timing alignment. Use Value: ±4.6V I/O tolerance accommodates FPGA VCCIO variations; 5Ω RON limits IR drop to <32mV at 64mA per line. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74CBTLV3384PWR | Same 10-bit dual-switch function, identical RON and tPD specs; TI version uses same TSSOP-24 (PW) package | No functional difference; pinout and DC/AC specs match 74CBTLV3384PGG8 exactly | Drop-in replacement if TI sourcing preferred; verify tape-and-reel packaging code (PWR vs PGG8) matches assembly line requirements |
| 74LVC1G3157GW | Single-pole double-throw (SPDT) analog switch, not 10-bit bus switch; 6Ω RON, 3.3V-only operation, no dual-OE support | Only suitable for single-line signal routing, not parallel bus isolation or expansion | Use only for point-to-point signal gating; cannot replace 74CBTLV3384PGG8 in multi-bit data path applications |
Compared with SN74CBTLV3384PWR and 74LVC1G3157GW, the 74CBTLV3384PGG8 uniquely delivers dual 5-bit switching with independent OE control, full industrial temperature support, and guaranteed 4.6V over-voltage tolerance - making it the only option among the three qualified for robust, high-density bus isolation in mission-critical industrial systems.
Availability
74CBTLV3384PGG8 is available at Aetrix Electronics and suitable for memory expansion interfaces, PCI slot isolation, multi-processor data sharing, and FPGA-to-ASIC interfacing requiring stable component supply and long-term industrial-grade availability.
Supply support for 74CBTLV3384PGG8 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 74CBTLV3384PGG8 belongs to Renesas' legacy IDT logic portfolio, designed specifically for high-speed, low-voltage bus switching in industrial and communications equipment where signal integrity, power sequencing robustness, and thermal reliability are critical.
FAQ
What is the maximum allowable voltage on A/B pins of the 74CBTLV3384PGG8 when VCC = 0V?
The 74CBTLV3384PGG8 supports –0.5V to +4.6V on all A and B port pins regardless of VCC state. When VCC = 0V, this over-voltage tolerance ensures safe connection to live buses or powered peripherals without risk of latch-up or damage - a key feature for hot-swap and partial-power-down systems where the 74CBTLV3384PGG8 remains functional as an isolation barrier.
Does the 74CBTLV3384PGG8 require external pull-up resistors on OE pins?
Yes - to guarantee high-impedance state during power-up or power-down, OE pins must be tied to VCC via pull-up resistors. The minimum resistor value depends on the driver's current-sinking capability; Renesas recommends values ≥10kΩ for standard CMOS drivers. This requirement applies to both 1OE and 2OE inputs of the 74CBTLV3384PGG8 to prevent undefined switch states during supply transients.
Can the 74CBTLV3384PGG8 be used in a 2.5V system with 3.3V peripherals?
Yes - the 74CBTLV3384PGG8 operates with VCC = 2.3V–3.6V and tolerates up to +4.6V on A/B pins. In a mixed-voltage system, setting VCC = 2.5V allows safe interface between a 2.5V controller and 3.3V peripherals, leveraging the device's over-voltage tolerance and bidirectional RON to maintain signal fidelity without level shifters - a verified use case for the 74CBTLV3384PGG8 in industrial I/O modules.
What is the typical on-state resistance (RON) of the 74CBTLV3384PGG8 at 3.3V supply?
At VCC = 3.3V and IO = 24mA, the 74CBTLV3384PGG8 exhibits a typical on-state resistance of 5Ω, with a maximum of 7Ω across the industrial temperature range. This low RON ensures minimal voltage drop (<168mV at 33.6mA per line) and preserves signal edge rates - critical for maintaining timing margins in high-speed parallel bus applications using the 74CBTLV3384PGG8.
Is the 74CBTLV3384PGG8 pin-compatible with the QSOP-packaged 74CBTLV3384QG8?
Yes - the 74CBTLV3384PGG8 (TSSOP-24) and 74CBTLV3384QG8 (QSOP-24) share identical pinout, electrical specifications, and functional behavior. Both packages have 24 pins in the same order, including matching positions for 1A1–1A5, 1B1–1B5, 1OE, 2A1–2A5, 2B1–2B5, 2OE, GND, and VCC. The 74CBTLV3384PGG8 differs only in package dimensions and thermal characteristics, not functionality or pin assignment.
74CBTLV3384PGG8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- 74CBTLV
- Package/Case:
- 24-TSSOP (0.173", 4.40mm 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-TSSOP
74CBTLV3384PGG8 FAQ
1.How can I place an order for 74CBTLV3384PGG8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74CBTLV3384PGG8 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 74CBTLV3384PGG8 reliable?
The price and inventory of 74CBTLV3384PGG8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74CBTLV3384PGG8 is usually 5 days.
3.What payment methods are accepted for 74CBTLV3384PGG8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74CBTLV3384PGG8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74CBTLV3384PGG8?
74CBTLV3384PGG8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74CBTLV3384PGG8 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 74CBTLV3384PGG8?
For technical support, including 74CBTLV3384PGG8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74CBTLV3384PGG8 requirements.
6.How does Aetrix verify that 74CBTLV3384PGG8 is sourced from the original manufacturer or authorized distributors?
All 74CBTLV3384PGG8 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 74CBTLV3384PGG8 meets industry standards.
7.What is the process for return or replacement of 74CBTLV3384PGG8?
All 74CBTLV3384PGG8 units undergo pre-shipment inspection (PSI). If there is an issue with 74CBTLV3384PGG8, 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 74CBTLV3384PGG8 part is unused and in its original packaging.
Return procedure for 74CBTLV3384PGG8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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