SN74CB3Q3306A Status: ACTIVE

Dual FET 2.5-V/3.3-V Low-Voltage, High-Bandwidth Bus Switch

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Datasheet

SN74CB3Q3306A (Rev. D) (PDF 468 KB)
20 Nov 2003

	SN74CB3Q3306A
Voltage Nodes(V)	2.5, 3.3
Vcc range(V)	2.3 to 3.6
No. of Bits	2
Input Level	LVTTL
ron(max)(ohms)	9
Static Current	0.25
Static Current(Max)	0.7
tpd max(ns)	0.2
Rating	Catalog
Technology Family	CB3Q
	Samples
	Inventory

Customers Who Evaluated This Product Also Evaluated

SN74CB3Q3305: Dual FET Bus Switch 2.5-V/3.3-V Low-Voltage, High-Bandwidth
TPA3123D2: 25-W Stereo Class-D Audio Power Amplifier with SE Outputs (TPA3123)
SN74LVC1G08: Single 2-Input Positive-AND Gate
SN74LVC1G66: Single Analog Switch

Product Information

Features

High-Bandwidth Data Path (Up to 500 MHz)
5-V Tolerant I/Os with Device Powered-Up or Powered-Down
Low and Flat ON-State Resistance (r_on) Characteristics Over Operating Range (r_on = 4 Typical)
Rail-to-Rail Switching on Data I/O Ports
- 0- to 5-V Switching With 3.3-V V_CC
- 0- to 3.3-V Switching With 2.5-V V_CC
Bidirectional Data Flow, With Near-Zero Propagation Delay
Low Input/Output Capacitance Minimizes Loading and Signal Distortion (C_io(OFF) = 3.5 pF Typical)
Fast Switching Frequency (f_OE\ = 20 MHz Max)
Data and Control Inputs Provide Undershoot Clamp Diodes
Low Power Consumption (I_CC = 0.25 mA Typical)
V_CC Operating Range From 2.3 V to 3.6 V
Data I/Os Support 0 to 5-V Signaling Levels (0.8-V, 1.2-V, 1.5-V, 1.8-V, 2.5-V, 3.3-V, 5-V)
Control Inputs Can be Driven by TTL or 5-V/3.3-V CMOS Outputs
I_off Supports Partial-Power-Down Mode Operation
Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
ESD Performance Tested Per JESD 22
- 2000-V Human-Body Model (A114-B, Class II)
- 1000-V Charged-Device Model (C101)
Supports Both Digital and Analog Applications: USB Interface, Differential Signal Interface, Bus Isolation, Low-Distortion Signal Gating

For additional information regarding the performance characteristics of the CB3Q family, refer to the TI application report, CBT-C, CB3T, and CB3Q Signal-Switch Families, literature number SCDA008.

Description

The SN74CB3Q3306A is a high-bandwidth FET bus switch utilizing a charge pump to elevate the gate voltage of the pass transistor, providing a low and flat ON-state resistance (r_on). The low and flat ON-state resistance allows for minimal propagation delay and supports rail-to-rail switching on the data input/output (I/O) ports. The device also features low data I/O capacitance to minimize capacitive loading and signal distortion on the data bus. Specifically designed to support high-bandwidth applications, the SN74CB3Q3306A provides an optimized interface solution ideally suited for broadband communications, networking, and data-intensive computing systems.

The SN74CB3Q3306A is organized as two 1-bit switches with separate output-enable (1OE\, 2OE\) inputs. It can be used as two 1-bit bus switches, or as one 2-bit bus switch. When OE\ is low, the associated 1-bit bus switch is ON and the A port is connected to the B port, allowing bidirectional data flow between ports. When OE\ is high, the associated 1-bit bus switch is OFF and a high-impedance state exists between the A and B ports.

This device is fully specified for partial-power-down applications using I_off. The I_off circuitry prevents damaging current backflow through the device when it is powered down. The device has isolation during power off.

To ensure the high-impedance state during power up or power down, OE\ should be tied to V_CC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

Pricing / Packaging / CAD Design Tools / Samples

			Price	Packaging			CAD Design Tools	Samples
Device	Status	Temp (^oC)	Price \| Quantity	Package \| Pins	Top Side Marking	Package QTY \| Package Carrier	Footprints	Samples
74CB3Q3306ADCURE4	ACTIVE	-40 to 85	0.55 \| 1ku	US8 (DCU) \| 8		3000 \| LARGE T&R
74CB3Q3306ADCURG4	ACTIVE	-40 to 85	0.55 \| 1ku	US8 (DCU) \| 8		3000 \| LARGE T&R
74CB3Q3306APWRE4	ACTIVE	-40 to 85	0.55 \| 1ku	TSSOP (PW) \| 8	View	2000 \| LARGE T&R
SN74CB3Q3306ADCUR	ACTIVE	-40 to 85	0.55 \| 1ku	US8 (DCU) \| 8		3000 \| LARGE T&R
SN74CB3Q3306APW	ACTIVE	-40 to 85	0.55 \| 1ku	TSSOP (PW) \| 8	View	150 \| TUBE	Purchase Samples
SN74CB3Q3306APWE4	ACTIVE	-40 to 85	0.55 \| 1ku	TSSOP (PW) \| 8	View	150 \| TUBE	Purchase Samples
SN74CB3Q3306APWG4	ACTIVE	-40 to 85	0.55 \| 1ku	TSSOP (PW) \| 8	View	150 \| TUBE	Purchase Samples
SN74CB3Q3306APWR	ACTIVE	-40 to 85	0.55 \| 1ku	TSSOP (PW) \| 8	View	2000 \| LARGE T&R
SN74CB3Q3306APWRG4	ACTIVE	-40 to 85	0.55 \| 1ku	TSSOP (PW) \| 8	View	2000 \| LARGE T&R

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Inventory

Reported Distributor Inventory as of 10:59 AM GMT, 08 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 12 Weeks74CB3Q3306ADCURE4
None Reported View Distributors
TI Lead Time*: 12 Weeks74CB3Q3306ADCURG4
None Reported View Distributors
TI Lead Time*: 20 Weeks74CB3Q3306APWRE4
None Reported View Distributors
TI Lead Time*: 12 WeeksSN74CB3Q3306ADCUR
Asia	Wintech	15
TI Lead Time*: 20 WeeksSN74CB3Q3306APW
Americas	Avnet	528
Americas	Rochester Electronics	>1k
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksSN74CB3Q3306APWE4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksSN74CB3Q3306APWG4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksSN74CB3Q3306APWR
Asia	WPI	500
Worldwide	DigiKey	698
TI Lead Time*: 20 WeeksSN74CB3Q3306APWRG4
Worldwide	DigiKey	Available
View all Distributors

** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.

Quality & Lead (Pb)-Free Data

	Product Content				DPPM / MTBF / FIT Rate
Device	Eco Plan*	Lead / Ball Finish	MSL Rating / Peak Reflow	Details	Details
74CB3Q3306ADCURE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
74CB3Q3306ADCURG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
74CB3Q3306APWRE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74CB3Q3306ADCUR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74CB3Q3306APW	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74CB3Q3306APWE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74CB3Q3306APWG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74CB3Q3306APWR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74CB3Q3306APWRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View

* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.

If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.

Technical Documents

Most useful technical documents for SN74CB3Q3306A

Datasheet

SN74CB3Q3306A (Rev. D) (PDF, 468 KB)
20 Nov 2003

Application Notes

Bus FET Switch Solutions for Live Insertion Applications (HTM, 8 KB) 1982 views
07 Feb 2003 Read Abstract
CBT-C, CB3T, and CB3Q Signal-Switch Families (HTM, 8 KB) 2112 views
04 Feb 2003 Read Abstract
Shelf-Life Evaluation of Lead-Free Component Finishes (HTM, 8 KB) 26969 views
24 May 2004 Read Abstract
Understanding and Interpreting Standard-Logic Data Sheets (Rev. B) (HTM, 8 KB) 21380 views
28 May 2003 Read Abstract

View Application Notes for Digital Bus Switches

User Guides

LOGIC Pocket Data Book (Rev. B) (PDF, 6001 KB) 46833 views
16 Jan 2007
Signal Switch Data Book (Rev. A) (PDF, 18396 KB) 9501 views
14 Nov 2003

Selection Guides

Logic Guide 2009 (Rev. Z) (PDF, 4263 KB) 88618 views
23 Jul 2009

More Literature

Logic Cross-Reference (Rev. A) (PDF, 2938 KB) 15250 views
07 Oct 2003
Digital Bus Switch Selection Guide (Rev. A) (PDF, 719 KB) 2696 views
10 Nov 2004

Simulation Models

IBIS Model
- SN74CB3Q3306A IBIS Model (Multiple File Format) 172 views
  30 Apr 2003 Read Abstract
HSpice Model
- HSPICE Model for SN74CB3Q3306A (ZIP, 32 KB) 174 views
  06 Aug 2003

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SN74CB3Q3306A Status: ACTIVE

Dual FET 2.5-V/3.3-V Low-Voltage, High-Bandwidth Bus Switch

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