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Renesas 74CBTLV6800PGG8
- Part No.:
- 74CBTLV6800PGG8
- Manufacturer:
- Renesas
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 24-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74CBTLV6800PGG8.pdf
- Description:
- IC BUS SWITCH 24TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,871
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Product details
Overview
74CBTLV6800PGG8 from Renesas Electronics is a low-voltage 10-bit bus switch IC with precharged outputs, designed for high-speed 3.3V bus isolation and live-insertion noise suppression. It features 5Ω on-state resistance, 2.3V–3.6V supply range, industrial temperature operation (−40°C to +85°C), and bi-directional A/B switching controlled by a single OE input.
For engineers reviewing the 74CBTLV6800PGG8 datasheet, 74CBTLV6800PGG8 pinout, 74CBTLV6800PGG8 application, or 74CBTLV6800PGG8 equivalent, key selection criteria include precharge-enabled B-port biasing (BIASV), power-off isolation, over-voltage tolerance, and TSSOP-24 package compatibility in industrial embedded interconnect systems.
Technical Context
The 74CBTLV6800PGG8 implements a single 10-bit bi-directional switch array with CMOS transmission-gate architecture, enabling sub-0.25ns propagation delay at 3.3V. Its precharge circuitry actively pulls the B port to a user-defined BIASV voltage (1.3V to VCC) via an internal ~10-kΩ path when OE is high.
Control logic is strictly level-sensitive: OE = LOW enables A↔B conduction; OE = HIGH disables switching and activates B-port precharge. The device maintains isolation under power-off conditions and tolerates input voltages up to 4.6V independent of VCC.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.3V to 3.6V - supports core 3.3V and low-power 2.5V system rails without level shifters |
| RON (Typ.) | 5Ω at VCC = 3V, II = 24mA - enables minimal signal attenuation and skew in high-speed parallel buses |
| tPD (Max) | 0.25ns at VCC = 3.3V - ensures sub-nanosecond timing integrity for >1GHz data rates |
| BIASV Range | 1.3V to VCC - allows configurable precharge level to match host logic thresholds and suppress live-insertion glitches |
| IOFF (Max) | 50µA at VCC = 0 - guarantees robust power-off isolation for hot-swap backplane applications |
| ESD Rating | >2000V HBM, >200V MM - meets industrial handling requirements without external protection |
| Operating Temp | −40°C to +85°C - qualified for extended-temperature industrial control and networking equipment |
Pinout & Package
TSSOP-24 (PGG24) package: 7.8mm × 4.4mm body, 0.65mm pitch, exposed pad not present, moisture sensitivity level MSL3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 | A1–A10 | Input/output port A - connects to upstream bus or controller; bidirectional when switch enabled |
| 11, 12, 13, 14, 15, 16, 17, 18, 19, 20 | B1–B10 | Input/output port B - precharged to BIASV when OE high; bidirectional when switch enabled |
| 21 | OE | Active-low output enable - must be pulled high via resistor during power-up to ensure default high-Z state |
| 22 | BIASV | Bias voltage reference - sets precharge level for B port; accepts 1.3V to VCC |
| 23 | VCC | Supply voltage - powers internal logic and switch transistors; decoupling required near pin |
| 24 | GND | Ground reference - common return for all signals and supply; low-inductance connection critical for noise control |
Key Features
| Feature | Design Value |
|---|---|
| Precharged B-port outputs | Reduces live-insertion noise by actively biasing B-side lines to BIASV instead of floating or weak pull-ups |
| 5Ω typical on-resistance | Minimizes RC delay and signal distortion across 10-bit parallel paths at 3.3V operation |
| Power-off isolation | Guarantees <50µA off-state leakage even when VCC = 0, enabling safe hot-plug operation |
| Over-voltage tolerant I/O | Withstands −0.5V to +4.6V on A/B pins regardless of VCC, simplifying mixed-voltage interface design |
| Industrial temperature rating | Validated operation from −40°C to +85°C ensures reliability in uncontrolled ambient environments |
Applications
| Hot-Swap Backplane Interface | 3.3V Memory Bus Isolation |
|---|---|
Use Scenario: Inserting/removing line cards in telecom or industrial backplanes while main system remains powered. IC Role / Device Role / Timing Role: Bus switch isolating card-side B-port from backplane A-port; BIASV set to 1.5V to prevent glitch coupling during insertion. Use Value: Eliminates disruptive transients on shared backplane lines by precharging B-port before physical contact, verified per MIL-STD-883 ESD testing. | Use Scenario: Separating DDR SDRAM address/control lines between two memory controllers sharing one DIMM slot. IC Role / Device Role / Timing Role: Bidirectional 10-bit switch enabling time-multiplexed access; OE toggled synchronously with controller arbitration signals. Use Value: Achieves <0.25ns propagation delay and 5Ω RON to preserve setup/hold timing margins across 3.3V memory interfaces. |
| Low-Power FPGA I/O Expansion | Industrial PLC I/O Module Multiplexing |
Use Scenario: Expanding limited FPGA I/O count by time-sharing peripheral interfaces (e.g., SPI, UART, GPIO banks). IC Role / Device Role / Timing Role: Signal routing switch enabling dynamic reconfiguration; BIASV tied to FPGA VCCO to avoid level mismatch. Use Value: Supports 2.3V–3.6V operation matching modern FPGA I/O standards, with sub-1ns enable/disable times minimizing configuration overhead. | Use Scenario: Routing sensor/actuator signals through a central programmable logic controller with modular I/O slots. IC Role / Device Role / Timing Role: Isolating field-side B-port from CPU-side A-port; OE driven by PLC firmware to gate signal flow per safety protocol. Use Value: Industrial temperature rating and >100mA latch-up immunity ensure stable operation in electrically noisy factory environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74CBTLV6800PWR | Same function, 5Ω RON, identical pinout; TI version in TSSOP-24 (PW package), rated −40°C to +85°C | No BIASV pin - uses internal fixed precharge; lacks user-configurable bias voltage | Select when BIASV configurability is unnecessary and TI supply chain preference applies |
| 74LVC1G66GW,125 | Single-channel analog switch (1-bit), 5V-tolerant, 6Ω RON; SC-70-6 package, not pin-compatible | Requires 10× discrete devices to replace 10-bit function; no precharge or OE-controlled bank enable | Select only for ultra-low-pin-count prototyping where full 10-bit integration is not required |
Compared with SN74CBTLV6800PWR and 74LVC1G66GW,125, the 74CBTLV6800PGG8 uniquely provides user-adjustable BIASV for live-insertion noise control in 10-bit configurations, while maintaining industry-standard TSSOP-24 footprint and industrial temperature compliance.
Availability
74CBTLV6800PGG8 is available at Aetrix Electronics and suitable for hot-swap backplane interfaces, 3.3V memory bus isolation, and industrial PLC I/O module multiplexing requiring stable component supply across extended temperature ranges.
Supply support for 74CBTLV6800PGG8 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 CBTLV family targets high-speed, low-voltage digital interconnects-specifically engineered for noise-sensitive bus switching, live-insertion systems, and industrial-grade signal routing where precharge control and power-off isolation are critical.
FAQ
What is the function of the BIASV pin on the 74CBTLV6800PGG8?
The BIASV pin on the 74CBTLV6800PGG8 sets the precharge voltage level for the B port when the switch is disabled (OE = HIGH). It accepts 1.3V to VCC and internally biases B1–B10 through a ~10-kΩ path, suppressing live-insertion noise by preventing floating nodes. This feature is absent in non-precharge bus switches like the SN74CBTLV6800PWR.
Can the 74CBTLV6800PGG8 operate at 2.5V supply voltage?
Yes, the 74CBTLV6800PGG8 is fully specified for VCC = 2.3V to 3.6V, including 2.5V operation. At 2.5V, typical on-resistance is 5Ω–8Ω and propagation delay remains ≤0.15ns, making it suitable for mixed-voltage systems where legacy 2.5V logic coexists with 3.3V domains.
How does the 74CBTLV6800PGG8 ensure safe hot-plug operation?
The 74CBTLV6800PGG8 ensures safe hot-plug operation via three mechanisms: (1) power-off isolation (IOFF ≤50µA at VCC = 0), (2) over-voltage tolerant I/O (−0.5V to +4.6V), and (3) B-port precharge to BIASV during OE = HIGH. These features collectively eliminate transient coupling and latch-up risk during live insertion, validated to >100mA latch-up immunity.
Is the 74CBTLV6800PGG8 pin-compatible with the QS3800?
Yes-the 74CBTLV6800PGG8 is functionally equivalent to the QS3800 and shares identical pinout, electrical behavior, and 10-bit bus switch functionality. Both support precharged outputs and industrial temperature range, though the 74CBTLV6800PGG8 adds enhanced ESD ratings (>2000V HBM) and tighter RON specification.
What is the recommended pull-up resistor value for OE on the 74CBTLV6800PGG8?
The OE pin on the 74CBTLV6800PGG8 should be tied to VCC via a pull-up resistor to ensure high-impedance state during power-up/down. Minimum value depends on driver sink capability; for standard CMOS drivers, 4.7kΩ–10kΩ is typical. Lower values improve noise immunity but increase static current-designers must balance speed, power, and drive strength per system requirements.
74CBTLV6800PGG8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- 74CBTLV
- Package/Case:
- 24-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Bus Switch
- Circuit:
- -
- 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:
- 24-TSSOP
74CBTLV6800PGG8 FAQ
1.How can I place an order for 74CBTLV6800PGG8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74CBTLV6800PGG8 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 74CBTLV6800PGG8 reliable?
The price and inventory of 74CBTLV6800PGG8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74CBTLV6800PGG8 is usually 5 days.
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74CBTLV6800PGG8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74CBTLV6800PGG8 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 74CBTLV6800PGG8?
For technical support, including 74CBTLV6800PGG8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74CBTLV6800PGG8 requirements.
6.How does Aetrix verify that 74CBTLV6800PGG8 is sourced from the original manufacturer or authorized distributors?
All 74CBTLV6800PGG8 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 74CBTLV6800PGG8 meets industry standards.
7.What is the process for return or replacement of 74CBTLV6800PGG8?
All 74CBTLV6800PGG8 units undergo pre-shipment inspection (PSI). If there is an issue with 74CBTLV6800PGG8, 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 74CBTLV6800PGG8 part is unused and in its original packaging.
Return procedure for 74CBTLV6800PGG8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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