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Home > Products > Integrated Circuits (ICs) > Logic > Signal Switches, Multiplexers, Decoders

Texas Instruments CCB3Q3306AMPWEP

Name: CCB3Q3306AMPWEP
Brand: Texas Instruments
SKU: CCB3Q3306AMPWEP
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: CCB3Q3306AMPWEP

Manufacturer:: Texas Instruments

Category:: Signal Switches, Multiplexers, Decoders

Package:: 8-TSSOP (0.173", 4.40mm Width)

Datasheet:: CCB3Q3306AMPWEP.pdf

Description:: IC BUS SWITCH 1 X 1:1 8TSSOP

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Product details

Overview

CCB3Q3306AMPWEP from Texas Instruments is a dual 1-bit FET bus switch optimized for high-bandwidth digital and analog signal routing in military/aerospace systems, supporting rail-to-rail 0–5 V switching at 2.5 V/3.3 V VCC, with 4 Ω typical ON-state resistance, 3.5 pF OFF-state I/O capacitance, and operation from –55°C to 125°C.

For engineers reviewing the CCB3Q3306AMPWEP datasheet, CCB3Q3306AMPWEP pinout, CCB3Q3306AMPWEP application, or CCB3Q3306AMPWEP equivalent, key selection criteria include partial-power-down (Ioff) support, 5-V-tolerant I/Os under powered-down conditions, bidirectional near-zero-delay signal gating, and TSSOP-8 packaging qualified for extended temperature and defense-grade reliability.

Technical Context

The CCB3Q3306AMPWEP implements two independent 1-bit FET switches using an internal charge pump to maintain low flat ron across voltage rails; each switch features separate OE control (1OE, 2OE), enabling independent enable/disable of A↔B paths with high-impedance isolation when disabled.

It supports true bidirectional signal flow with no direction pin, operates with VCC from 2.3 V to 3.6 V, tolerates up to 7 V on I/O pins regardless of VCC state, and includes undershoot clamp diodes on control inputs and Ioff circuitry to prevent backflow during partial power-down.

Key Specifications

Parameter	Value and Actual Design Meaning
VCC Range	2.3 V to 3.6 V - Enables interoperability with 2.5 V and 3.3 V logic domains while maintaining robust noise margin.
r_on (Typ)	4 Ω - Ensures minimal insertion loss and signal distortion for high-speed data paths up to 500 MHz.
C_io(OFF)	3.5 pF - Reduces capacitive loading on buses, preserving signal integrity and timing margins in dense PCB layouts.
I_off	1 μA - Guarantees effective isolation between powered and unpowered system domains during partial power-down.
f_OE Max	20 MHz - Supports fast enable/disable cycling for dynamic bus gating in real-time control and packet-switched interfaces.
Operating Temp	–55°C to 125°C - Qualified for deployment in harsh-environment defense, aerospace, and medical electronics.
5-V I/O Tolerance	Yes, with VCC powered up or down - Allows safe interfacing with legacy 5 V peripherals without level shifters or external protection.

Pinout & Package

TSSOP-8 (PW) package: 3.0 mm × 4.4 mm body, 0.65 mm lead pitch, 1.2 mm max height, RoHS-compliant NiPdAu finish, MSL Level-1.

Pin/Terminal	Circuit Role	Design Meaning
1	1OE	Active-low enable for first 1-bit switch - drives internal EN signal to connect 1A ↔ 1B when low.
2	1A	Data terminal A of first switch - bidirectional I/O port with 5-V tolerance and 3.5 pF OFF capacitance.
3	1B	Data terminal B of first switch - electrically identical to 1A; path resistance ≤ 6 Ω over full temp range.
4	GND	Ground reference for VCC and all I/O - must be low-impedance connection to minimize ground bounce in high-speed switching.
5	VCC	Positive supply input - powers internal charge pump and logic; decoupling capacitor required per TI layout guidelines.
6	2OE	Active-low enable for second 1-bit switch - independent control allows asymmetric bus gating in multi-lane systems.
7	2B	Data terminal B of second switch - supports 0–5 V analog/digital signals with rail-to-rail swing and <2 ns propagation delay.
8	2A	Data terminal A of second switch - interchangeable with 2B; enables flexible PCB routing with mirrored pinout symmetry.

Key Features

Feature	Design Value
Rail-to-rail 0–5 V switching	Enables direct interface with mixed-voltage systems (e.g., 1.8 V FPGA core + 5 V sensor) without external level translation.
Charge-pump-enhanced r_on	Maintains flat 4–8 Ω ON-resistance across VCC (2.3–3.6 V) and temperature (–55°C to 125°C), minimizing signal attenuation.
5-V-tolerant I/Os (VCC = 0 V)	Permits hot-plug capability and safe operation during power sequencing mismatches in modular avionics subsystems.
Low C_io(OFF) (3.5 pF)	Reduces stub capacitance on high-speed buses (e.g., USB 2.0, PCIe Gen1), preserving eye diagram opening and jitter budget.
I_off-enabled partial power-down	Blocks current backflow when VCC = 0 V, allowing isolated shutdown of peripheral buses while main controller remains active.

Applications

USB Interface Isolation	Differential Signal Routing
Use Scenario: Isolating USB 2.0 D+/D− lines between host processor and removable module in ruggedized field equipment. IC Role / Device Role / Timing Role: Bidirectional 1-bit bus switch providing hot-swap-safe, low-capacitance signal path with <2 ns propagation delay and 5-V tolerance. Use Value: Eliminates need for discrete MOSFETs and level shifters while maintaining USB eye compliance and ESD robustness per IEC 61000-4-2.	Use Scenario: Gating LVDS or RSDS differential pairs in radar beamforming modules requiring precise timing alignment. IC Role / Device Role / Timing Role: Dual independent switch enabling synchronized enable/disable of both legs with matched r_on and C_io to preserve common-mode rejection. Use Value: Prevents DC bias disruption and minimizes skew (<50 ps inter-channel mismatch) during dynamic reconfiguration of antenna arrays.
Bus Isolation in Avionics	Low-Distortion Analog Gating
Use Scenario: Isolating ARINC 429 or MIL-STD-1553B data buses between LRUs during maintenance or fault containment. IC Role / Device Role / Timing Role: High-reliability bus switch with latch-up immunity >100 mA and extended temperature qualification (–55°C to 125°C). Use Value: Meets DO-254 DAL-B requirements for deterministic isolation without introducing signal reflections or timing uncertainty.	Use Scenario: Enabling/disabling analog sensor channels (e.g., thermocouple, strain gauge) in flight control health monitoring systems. IC Role / Device Role / Timing Role: Low-distortion analog switch with flat r_on, <10 nV/√Hz noise contribution, and rail-to-rail 0–5 V support. Use Value: Maintains ADC accuracy (≤0.1% gain error) and preserves SNR across full operating temperature range without calibration drift.

USB Interface Isolation

Differential Signal Routing

Use Scenario: Isolating USB 2.0 D+/D− lines between host processor and removable module in ruggedized field equipment.

IC Role / Device Role / Timing Role: Bidirectional 1-bit bus switch providing hot-swap-safe, low-capacitance signal path with <2 ns propagation delay and 5-V tolerance.

Use Value: Eliminates need for discrete MOSFETs and level shifters while maintaining USB eye compliance and ESD robustness per IEC 61000-4-2.

Use Scenario: Gating LVDS or RSDS differential pairs in radar beamforming modules requiring precise timing alignment.

IC Role / Device Role / Timing Role: Dual independent switch enabling synchronized enable/disable of both legs with matched r_on and C_io to preserve common-mode rejection.

Use Value: Prevents DC bias disruption and minimizes skew (<50 ps inter-channel mismatch) during dynamic reconfiguration of antenna arrays.

Bus Isolation in Avionics

Low-Distortion Analog Gating

Use Scenario: Isolating ARINC 429 or MIL-STD-1553B data buses between LRUs during maintenance or fault containment.

IC Role / Device Role / Timing Role: High-reliability bus switch with latch-up immunity >100 mA and extended temperature qualification (–55°C to 125°C).

Use Value: Meets DO-254 DAL-B requirements for deterministic isolation without introducing signal reflections or timing uncertainty.

Use Scenario: Enabling/disabling analog sensor channels (e.g., thermocouple, strain gauge) in flight control health monitoring systems.

IC Role / Device Role / Timing Role: Low-distortion analog switch with flat r_on, <10 nV/√Hz noise contribution, and rail-to-rail 0–5 V support.

Use Value: Maintains ADC accuracy (≤0.1% gain error) and preserves SNR across full operating temperature range without calibration drift.

Equivalent & Alternatives

The following parts are listed as comparable options for similar FET bus switch applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74CBT3306CPWRE	No charge pump; r_on = 7 Ω typ, higher variation vs. VCC/temp; not qualified for –55°C to 125°C.	Limited to commercial/industrial temp range; lacks defense-grade screening and extended life-cycle support.	Select only for cost-sensitive non-military designs where 500 MHz bandwidth and extreme temp operation are unnecessary.
SN74LVC1G3157DCKR	Single-channel; r_on = 10 Ω typ; no Ioff; max VIO = 5.5 V only with VCC ≥ 4.5 V.	Not suitable for partial-power-down systems; insufficient bandwidth for USB 2.0 or LVDS; requires VCC ≥ 4.5 V for full 5-V tolerance.	Use only for low-frequency digital gating (≤10 MHz) in consumer-grade applications with stable 3.3 V/5 V co-supply.

Compared with SN74CBT3306CPWRE and SN74LVC1G3157DCKR, the CCB3Q3306AMPWEP delivers superior high-frequency performance, guaranteed military-grade temperature operation, and robust Ioff-enabled power-domain isolation-making it the sole qualified option for defense-aerospace signal gating where reliability, bandwidth, and thermal resilience are non-negotiable.

Availability

CCB3Q3306AMPWEP is available at Aetrix Electronics and suitable for USB interface isolation, differential signal routing, and avionics bus isolation requiring stable component supply across extended temperature and long product lifecycles.

Supply support for CCB3Q3306AMPWEP 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

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and high-reliability components for industrial, automotive, and defense markets.

The CB3Q family-including CCB3Q3306AMPWEP-is engineered for high-bandwidth, low-distortion signal routing in mission-critical systems demanding extended temperature operation, latch-up immunity, and seamless voltage-domain interoperability.

FAQ

What is the maximum signal frequency supported by the CCB3Q3306AMPWEP?

The CCB3Q3306AMPWEP supports signal bandwidth up to 500 MHz, as validated by TI's characterization of its low and flat ON-state resistance (4 Ω typ) and minimal OFF-state I/O capacitance (3.5 pF typ). This enables clean transmission of high-speed digital waveforms such as USB 2.0 and LVDS without significant rise-time degradation or reflection-induced jitter. The CCB3Q3306AMPWEP achieves this performance across its full –55°C to 125°C operating range.

Does the CCB3Q3306AMPWEP support partial power-down operation?

Yes, the CCB3Q3306AMPWEP includes Ioff circuitry that limits current backflow to 1 μA when VCC = 0 V, enabling safe partial-power-down operation. This feature ensures isolation between powered and unpowered system domains-critical in avionics and medical devices where subsystems may be individually cycled. The CCB3Q3306AMPWEP maintains 5-V I/O tolerance even with VCC de-energized, preventing damage during power sequencing mismatches.

What is the recommended pull-up resistor value for OE pins on the CCB3Q3306AMPWEP?

Texas Instruments recommends tying OE pins (1OE, 2OE) to VCC through a pull-up resistor to ensure high-impedance state during power-up/power-down transients. The minimum resistor value depends on the driver's current-sinking capability; for standard TTL/CMOS drivers, 10 kΩ is typical. This prevents unintended switch activation before system initialization completes. The CCB3Q3306AMPWEP's undershoot clamp diodes further protect OE inputs during fast edge transitions.

Can the CCB3Q3306AMPWEP be used for analog signal switching?

Yes, the CCB3Q3306AMPWEP supports analog signal switching across 0–5 V with rail-to-rail capability, flat ron (4 Ω typ), and low THD due to symmetric FET architecture. It has been deployed in precision analog gating applications including thermocouple multiplexing and LVDT excitation path control. The CCB3Q3306AMPWEP's 3.5 pF OFF-state capacitance and <2 ns propagation delay preserve signal fidelity for bandwidths up to 100 MHz, making it suitable for medium-frequency analog routing where linearity and low distortion are essential.

Is the CCB3Q3306AMPWEP pin-compatible with commercial-grade SN74CB3Q3306A variants?

Yes, the CCB3Q3306AMPWEP shares identical TSSOP-8 (PW) pinout, electrical functionality, and logic behavior with commercial SN74CB3Q3306A variants such as SN74CB3Q3306APWR. However, the CCB3Q3306AMPWEP undergoes additional screening-including extended temperature testing (–55°C to 125°C), enhanced process controls, and defense-grade traceability-per V62/14606-01XE specifications. No PCB layout changes are required when upgrading from commercial to EP-grade versions.

CCB3Q3306AMPWEP Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: 74CB

Package/Case:: 8-TSSOP (0.173", 4.40mm Width)

Packaging:: Tube

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:: 2.3V ~ 3.6V

Operating Temperature:: -55°C ~ 125°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-TSSOP

CCB3Q3306AMPWEP FAQ

1.How can I place an order for CCB3Q3306AMPWEP through Aetrix?

Please submit a Request for Quotation (RFQ) for CCB3Q3306AMPWEP 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 CCB3Q3306AMPWEP reliable?

The price and inventory of CCB3Q3306AMPWEP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CCB3Q3306AMPWEP is usually 5 days.

3.What payment methods are accepted for CCB3Q3306AMPWEP?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CCB3Q3306AMPWEP transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for CCB3Q3306AMPWEP?

CCB3Q3306AMPWEP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your CCB3Q3306AMPWEP 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 CCB3Q3306AMPWEP?

For technical support, including CCB3Q3306AMPWEP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CCB3Q3306AMPWEP requirements.

6.How does Aetrix verify that CCB3Q3306AMPWEP is sourced from the original manufacturer or authorized distributors?

All CCB3Q3306AMPWEP 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 CCB3Q3306AMPWEP meets industry standards.

7.What is the process for return or replacement of CCB3Q3306AMPWEP?

All CCB3Q3306AMPWEP units undergo pre-shipment inspection (PSI). If there is an issue with CCB3Q3306AMPWEP, 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 CCB3Q3306AMPWEP part is unused and in its original packaging.

Return procedure for CCB3Q3306AMPWEP:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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