SN74CB3Q3306APWRIn StockTexas Instruments
SN74CB3Q3306APWR is a dual FET 2.5V/3.3V low-voltage, high-bandwidth bus switch with unidirectional control, 50pF load capacitance, and enable-low logic. Ideal for portable and battery-powered systems. From $0.19 in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- SN74CB3Q3306APWR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.1911(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual FET bus switch supporting 2.5V and 3.3V operation for flexible mixed-voltage system design
- High-bandwidth signal path with ultra-low ON-resistance, minimizing signal distortion
- Enable-low active control pin for easy integration with standard logic interfaces
- Unidirectional 1-bit switching optimized for high-speed data bus applications
- Available in compact TSSOP-8 (PDSO-G8) package ideal for space-constrained PCB layouts
Applications
The SN74CB3Q3306APWR is widely used in portable consumer electronics, smartphones, and tablets where low-voltage bus switching between 2.5V and 3.3V domains is required. It is well suited for memory interface routing, processor-to-peripheral signal multiplexing, and battery-powered IoT devices demanding minimal power consumption. Its high-bandwidth performance also makes it effective in notebook computers and handheld instrumentation requiring reliable, low-distortion signal switching.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Control Type | ENABLE LOW |
| Count Direction | UNIDIRECTIONAL |
| Family | CB3Q/3VH/3C/2B |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS DRIVER |
| Number of Bits | 1 |
| Number of Functions | 2 |
| Number of Ports | 2 |
| Output Characteristics | 3-STATE |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 2mA |
| Prop. Delay@Nom-Sup | 0.2ns |
| Propagation Delay (tpd) | 0.2ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 3.6V |
| Supply Voltage-Min (Vsup) | 2.3V |
| Supply Voltage-Nom (Vsup) | 2.5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SN74CB3Q3306APWR:
Bus Driver, CB3Q/3VH/3C/2B Series, 2-Func, 1-Bit, True Output, CMOS, PDSO8
Bus Driver, CB3Q/3VH/3C/2B Series, 2-Func, 4-Bit, True Output, CMOS, PDSO20
Frequently Asked Questions
What voltage levels does the SN74CB3Q3306APWR support?
The SN74CB3Q3306APWR supports both 2.5V and 3.3V supply voltages, making it suitable for mixed-voltage system designs. It features a low ON-resistance FET switch that maintains signal integrity across both voltage domains, with a load capacitance rating of 50pF.
How does the enable control work on the SN74CB3Q3306APWR?
The SN74CB3Q3306APWR uses an active-low enable (OE#) control pin. When the enable pin is driven low, the bus switch is turned on and the signal path is connected. When driven high, the switch is disabled, isolating the bus. This unidirectional control simplifies integration with standard digital logic.
What are typical applications for the SN74CB3Q3306APWR?
Typical applications include low-voltage bus switching in smartphones, tablets, notebooks, and IoT devices. It is commonly used for memory interface routing, processor-to-peripheral multiplexing, and signal isolation in battery-powered portable electronics where 2.5V or 3.3V operation is required.
What package does the SN74CB3Q3306APWR come in and where can I buy it?
The SN74CB3Q3306APWR is available in an 8-pin TSSOP (R-PDSO-G8) small outline package. It is priced from approximately $0.19 per unit and is available with worldwide shipping through authorized distributors and online electronics component suppliers.
Related Guides
Ultra Low Power Microcontroller Comparison 2026: STM32L4 vs MSP430 vs MSP432 vs CC2640
Engineer-grade 2026 comparison of ultra-low-power MCUs — STM32L476, MSP430A139, MSP432P401R, CC2640F128 across standby current, active current, and battery life.
May 5, 2026
BOM Cost Reduction: 7 Strategies for Electronics Manufacturers in 2026
Practical 2026 BOM optimization playbook — 7 proven strategies, ranked by payback time and risk. With realistic per-unit savings and verification steps.
May 5, 2026
STM32F072C8T6 Pin-Compatible Alternatives 2026: Cheaper Drop-In Options Compared
Engineer-grade compatibility analysis for STM32F072C8T6 alternatives in 2026 — pin compatibility, firmware portability, cost and lead time for each option.
May 5, 2026
Top Microcontrollers for IoT 2026: ESP32 vs Arduino vs STM32 vs RPi Pico
The five IoT MCU platforms compared on 2026 pricing, lead time, and use case — ESP32-S3, Arduino, STM32F0, RP2040, TI CC2640/CC1352P.
May 5, 2026
Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.4725 | $0.47 |
| 52+ | $0.3150 | $16.38 |
| 164+ | $0.2205 | $36.16 |
| 908+ | $0.1911 | $173.52 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”