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SN74CB3Q3251RGYR SN74CB3Q3251RGYR is a 3.3-V, 8:1, 1-channel general-purpose FET bus switch from Texas Instruments. It features 500 MHz bandwidth, 3.5 Ω typical on-resistance, and operates from 2.3 V to 3.6 V.
Mfr Part #:

SN74CB3Q3251RGYR

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
SN74CB3Q3251RGYR is a 3.3-V, 8:1, 1-channel general-purpose FET bus switch from Texas Instruments. It features 500 MHz bandwidth, 3.5 Ω typical on-resistance, and operates from 2.3 V to 3.6 V.
✓ Total Stock: 45,296 pcs
$ Price Range: $0.36

SN74CB3Q3251RGYR Available from 2 distributors

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✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Romaks Technologies ✓
Non-Authorised Inventory information
45,200 pcs
On Request
45200 pcs On Request 1 On Request On Request On Request On Request On Request
Bristol Electronics ✓
Non-Authorised Inventory information
96 pcs
On Request
96 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

SN74CB3Q3251RGYR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Bandwidth
Circuit
Independent Circuits
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Operating Temperature
Supplier Device Package
Supply Current
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SN74CB3Q3251RGYR Description

Short technical summary and product information.

The SN74CB3Q3251RGYR is a 3.3-V, 8:1, 1-channel general-purpose FET bus switch from Texas Instruments. It is designed for high-bandwidth data paths up to 500 MHz, making it suitable for PCI interfaces, differential signal interfaces, memory interleaving, bus isolation, and low-distortion signal gating.

 

Key electrical characteristics include a typical on-state resistance of 3.5 Ω (maximum 11 Ω), low input/output capacitance (COFF typ 3.5 pF, CON typ 15 pF), and support for 0-V to 5-V signaling levels. The device operates from a single 2.3 V to 3.6 V supply and draws a typical supply current of 600 µA.

 

The SN74CB3Q3251RGYR is offered in a 16-pin VQFN package (RGY suffix) with an exposed pad for enhanced thermal performance. It is rated for operation from -40°C to +85°C and is surface mount compatible. The device features 5-V tolerant I/Os, rail-to-rail switching, and supports partial-power-down mode with Ioff protection.

SN74CB3Q3251RGYR Quick Information

Product Type: FET Bus Switch
Canonical Name: SN74CB3Q3251RGYR
Subcategory: Protocol & Bus Switches

SN74CB3Q3251RGYR Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

SN74CB3Q3251RGYR Estimated Pricing

Qty Low High
1+ $0.36 $0.36

Estimated market price range - modelled values for guidance only, not live distributor offers.

SN74CB3Q3251RGYR Features

  • 500 MHz high-bandwidth data path
  • 3.5 Ω typical on-state resistance
  • 5-V tolerant I/Os with powered up or down
  • Rail-to-rail switching on data I/O ports
  • Low power consumption (600 µA typical)

SN74CB3Q3251RGYR Applications

  • Ideal for PCI interface applications
  • Used in differential signal interface circuits
  • Suitable for memory interleaving designs
  • Perfect for bus isolation and signal gating

SN74CB3Q3251RGYR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the SN74CB3Q3251RGYR?

2.3V to 3.6V.

What package does the SN74CB3Q3251RGYR come in?

16-VQFN (4x3.5) exposed pad surface mount package.

What is the operating temperature range?

-40°C to 85°C.

What is the typical bandwidth of the SN74CB3Q3251RGYR?

500 MHz.

What is the typical on-state resistance?

3.5 ohms.

What is the typical supply current?

600 µA.

What is the input/output voltage range?

0 V to 5.5 V.

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