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Nexperia USA Inc. CBT3306PW,118
- Part No.:
- CBT3306PW,118
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
CBT3306PW,118.pdf
- Description:
- IC BUS SWITCH 1 X 1:1 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:300
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Product details
Overview
CBT3306PW,118 from Nexperia is a dual FET bus switch IC with independent 1A↔1B and 2A↔2B bidirectional signal paths, 5 Ω typical ON resistance at 4.5 V supply, TTL-compatible control inputs tolerant to 5.5 V, and IOFF partial power-down capability. It serves as a low-latency, low-distortion signal routing device in 3.3 V/5 V mixed-voltage digital systems such as memory address/data buses and peripheral interface isolation.
For engineers reviewing the CBT3306PW,118 datasheet, CBT3306PW,118 pinout, CBT3306PW,118 application, or CBT3306PW,118 equivalent, key selection criteria include guaranteed 5 Ω RON at 4.5 V, 1.0–5.0 ns enable/disable timing, -40 °C to +85 °C industrial temperature operation, overvoltage-tolerant nOE inputs, and TSSOP8 package compatibility with standard PCB assembly processes.
Technical Context
The CBT3306PW,118 implements two independent transmission-gate-based FET switches, each controlled by a dedicated active-low output enable (nOE) input. Switch conduction is bidirectional and voltage-agnostic-signals pass unaltered between A and B ports when enabled, with no level-shifting or buffering.
Its IOFF circuitry ensures leakage current remains below ±1 μA when VCC = 0 V, enabling live insertion and hot-swap operation without disrupting adjacent powered rails. Control inputs tolerate up to 5.5 V regardless of VCC, allowing direct interfacing with 5 V logic while operating from 4.5–5.5 V supplies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RON (ON resistance) | 5 Ω max at VCC = 4.5 V, II = 64 mA - ensures minimal signal attenuation and voltage drop in high-speed data paths |
| ten / tdis | 1.0–5.0 ns - enables sub-5 ns switching for synchronous bus arbitration and dynamic signal routing |
| VCC operating range | 4.5–5.5 V - matches standard 5 V TTL and LVTTL system rails with tight regulation tolerance |
| VIH / VIL | 2.0 V min / 0.8 V max - guarantees reliable recognition of TTL logic levels across temperature |
| IOFF leakage | ±1 μA max at VCC = 5.5 V - prevents back-driving and cross-talk during power sequencing |
| ESD rating (HBM) | 2000 V - meets industrial-grade handling robustness per JESD22-A114F |
| Operating temperature | -40 °C to +85 °C - supports deployment in extended-temperature industrial and networking equipment |
Pinout & Package
TSSOP8 plastic thin shrink small outline package (SOT530-1), 8-lead, body width 4.4 mm, 0.65 mm pitch, lead-free and RoHS compliant.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OE | Active-low enable for first switch (1A ↔ 1B); HIGH disables path, LOW enables bidirectional conduction |
| 2 | 1A | Data I/O port A for first switch - connects to source/sink node on one side of bus segment |
| 3 | 1B | Data I/O port B for first switch - connects to source/sink node on opposite side of bus segment |
| 4 | GND | Ground reference (0 V) for all internal circuitry and signal return paths |
| 5 | 2A | Data I/O port A for second switch - electrically isolated from 1A/1B, supports independent routing |
| 6 | 2B | Data I/O port B for second switch - enables dual-channel bus isolation without shared control |
| 7 | 2OE | Active-low enable for second switch (2A ↔ 2B); independent timing and control from 1OE |
| 8 | VCC | Positive supply input (4.5–5.5 V); powers internal gate drivers and IOFF protection circuitry |
Key Features
| Feature | Design Value |
|---|---|
| 5 Ω low-impedance switch path | Minimizes RC delay and signal distortion in 100 MHz+ parallel bus applications |
| Overvoltage-tolerant nOE inputs | Accepts up to 5.5 V control signals even when VCC = 4.5 V - eliminates level-shifters in mixed-voltage designs |
| IOFF partial power-down mode | Prevents current flow through switch when VCC = 0 V - essential for hot-plug and power-gated subsystems |
| Latch-up immunity >100 mA | Guarantees robust operation under transient overvoltage or ESD stress per JESD78B Class II |
| 8-pin TSSOP footprint | Enables high-density PCB layout with standard reflow soldering and automated optical inspection |
Applications
| Memory Bus Isolation | Peripheral Interface Multiplexing |
|---|---|
|
Use Scenario: Isolating DRAM address/data lines between CPU and memory controller during power state transitions. IC Role / Device Role / Timing Role: Bidirectional analog switch enabling/disabling signal continuity without buffering or inversion. Use Value: Prevents back-driving and contention during sleep/wake cycles, reducing system-level power leakage by >90% in standby. |
Use Scenario: Sharing a single UART or SPI interface among multiple peripherals via time-multiplexed routing. IC Role / Device Role / Timing Role: Low-latency signal path selector controlled by processor GPIOs. Use Value: Eliminates need for discrete logic or multiplexers; 1.0 ns enable time supports 100+ Mbps serial data rates. |
| Hot-Swappable Module Interface | Mixed-Voltage Logic Translation |
|
Use Scenario: Connecting add-in cards (e.g., PCIe risers or FPGA mezzanines) that may be inserted while main system is powered. IC Role / Device Role / Timing Role: Signal isolator with IOFF protection preventing VCC backfeed from module to host. Use Value: Enables safe live insertion without risk of latch-up or damage to host logic due to floating or reverse-biased rails. |
Use Scenario: Interfacing 3.3 V microcontroller GPIOs to legacy 5 V peripheral devices without external level shifters. IC Role / Device Role / Timing Role: Passive bidirectional voltage translator leveraging FET threshold behavior. Use Value: Supports 5 V-tolerant inputs while operating from 4.5–5.5 V supply - reduces BOM count and board area by 30% vs. active translators. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual bus switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74CBTD3306PWR | Higher RON (7 Ω typ), wider VCC range (4.5–5.5 V), same TSSOP8 package | Lower drive strength limits use in >100 MHz DDR2 address buses | Select when TI ecosystem compatibility or tighter propagation skew (<0.1 ns) is required |
| 74LVC2G66DP,125 | Single-channel only, lower RON (3.5 Ω), 1.65–5.5 V VCC, XSON8 package | Requires two units for dual-path function; lacks independent nOE per channel | Choose for space-constrained designs needing lowest possible RON and ultra-low quiescent current (0.1 μA ICC) |
Compared with SN74CBTD3306PWR and 74LVC2G66DP,125, the CBT3306PW,118 uniquely delivers matched dual-channel control with independent nOE pins, 5 Ω RON at 4.5 V, and proven IOFF behavior - making it optimal for industrial bus arbitration where channel independence and hot-swap safety are non-negotiable.
Availability
CBT3306PW,118 is available at Aetrix Electronics and suitable for memory bus isolation, peripheral interface multiplexing, hot-swappable module interfaces, and mixed-voltage logic translation requiring stable component supply across industrial production cycles.
Supply support for CBT3306PW,118 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
Nexperia is a global semiconductor expert focused on high-volume, high-reliability logic, discrete, and MOSFET components, serving automotive, industrial, and consumer markets with scalable manufacturing and rigorous quality systems.
The CBT3306 belongs to Nexperia's high-speed bus switch product line, engineered specifically for low-latency, low-distortion signal routing in 5 V digital systems where power sequencing, voltage tolerance, and channel independence are critical design constraints.
FAQ
Can CBT3306PW,118 operate with VCC = 3.3 V?
No. The CBT3306PW,118 is specified only for VCC = 4.5–5.5 V per Table 6. At 3.3 V, RON increases beyond 15 Ω and enable/disable timing degrades significantly; operation outside this range violates recommended conditions and voids parametric guarantees.
Does CBT3306PW,118 support hot-swap without external circuitry?
Yes. Its IOFF circuitry actively blocks current flow when VCC = 0 V, limiting leakage to ±1 μA (Table 7), enabling safe insertion into live backplanes or powered motherboards without auxiliary protection diodes or FETs.
What is the maximum capacitive load the CBT3306PW,118 can drive reliably?
Per Table 10 test conditions, it maintains ≤2.5 ns rise/fall times with 50 pF load capacitance and 500 Ω termination. Driving >100 pF risks exceeding 5.0 ns disable time and increasing signal overshoot; layout-dependent parasitics must be included in total CL budget.
Are the 1A/1B and 2A/2B channels electrically isolated from each other?
Yes. The two switch channels share only GND and VCC rails; there is no internal conductive or capacitive coupling between 1A/1B and 2A/2B paths. Crosstalk is limited to <0.1 pF (Cio(off) = 6.45 pF per port off-state), verified in Table 7.
CBT3306PW,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74CBT
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Bus Switch
- Circuit:
- 1 x 1:1
- Independent Circuits:
- 2
- Current - Output High, Low:
- -
- Voltage Supply Source:
- Single Supply
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
CBT3306PW,118 FAQ
1.How can I place an order for CBT3306PW,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for CBT3306PW,118 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 CBT3306PW,118 reliable?
The price and inventory of CBT3306PW,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CBT3306PW,118 is usually 5 days.
3.What payment methods are accepted for CBT3306PW,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CBT3306PW,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CBT3306PW,118?
CBT3306PW,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CBT3306PW,118 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 CBT3306PW,118?
For technical support, including CBT3306PW,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CBT3306PW,118 requirements.
6.How does Aetrix verify that CBT3306PW,118 is sourced from the original manufacturer or authorized distributors?
All CBT3306PW,118 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 CBT3306PW,118 meets industry standards.
7.What is the process for return or replacement of CBT3306PW,118?
All CBT3306PW,118 units undergo pre-shipment inspection (PSI). If there is an issue with CBT3306PW,118, 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 CBT3306PW,118 part is unused and in its original packaging.
Return procedure for CBT3306PW,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CBT3306PW,118 Tags
-
SN74HC138DR
Texas Instruments
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TC7SB3157CFU,LF(CT
Toshiba Semiconductor and Storage
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74CBTLV3257PW,118
Nexperia USA Inc.
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SN74CBTLV3257PWR
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74CBTLV3257GUX
Nexperia USA Inc.
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74HC154BQ,118
Nexperia USA Inc.
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P3S0200GMX
NXP USA Inc.
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SN74CB3Q3245PWR
Texas Instruments
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Texas Instruments
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TCA9543APWR
Texas Instruments
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TCA9546APWR
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SN74HC138N
Texas Instruments
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