SN74CB3T3125 Status: ACTIVE

3.3-V Low-Voltage Quadruple FET Bus Switch with 5-V Tolerant Level Shifter

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Datasheet

SN74CB3T3125 (Rev. A) (PDF 628 KB)
01 Jan 2006

	SN74CB3T3125
ron(max)(ohms)	8
tpd max(ns)	0.25
Pin/Package	14QFN, 14TSSOP, 14TVSOP
Technology Family	CB3T
Operating Temp Range(Celsius)	-40 to 85
Approx. Price (US$)	1.10 \| 1ku
	Samples
	Inventory

Customers Who Evaluated This Product Also Evaluated

SN74CB3T3306: Dual Bus Switch Voltage Translator
SN74CB3T3257: 4-BIT 1-OF-2 FET MULT/DEMULT 2.5-V/3.3-V LOW-VOLTAGE BUS SWITCH WITH 5-V TOLERANT LEVEL SHIFTER
SN74CB3T1G125: Single FET 2.5-V/3.3-V Low-Voltage Bus Switch with 5-V Tolerant Level Shifter
TXB0104: 4-Bit Bidirectional Voltage-Level Translator with Auto Direction Sensing and +/-15 kV ESD Protect
SN74LVC2T45: Dual-Bit Dual Supply Transceiver with Configurable Voltage Translation and 3-State Outputs
SN74LVC1T45: Single-Bit Dual-Supply Bus Transceiver with Configurable Voltage Translation and 3-State Outputs

Product Information

Features

Output Voltage Translation Tracks V_CC
Supports Mixed-Mode Signal Operation On All Data I/O Ports
- 5-V Input Down To 3.3-V Output Level Shift With 3.3-V V_CC
- 5-V/3.3-V Input Down To 2.5-V Output Level Shift With 2.5-V V_CC
5-V Tolerant I/Os With Device Powered-Up or Powered-Down
Bidirectional Data Flow, With Near-Zero Propagation Delay
Low ON-State Resistance (r_on) Characteristics (r_on = 5 Typical)
Low Input/Output Capacitance Minimizes Loading (C_io(OFF) = 4.5 pF Typical)
Data and Control Inputs Provide Undershoot Clamp Diodes
Low Power Consumption (I_CC = 20 µA Max)
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 250 mA Per JESD 17
ESD Performance Tested Per JESD 22
- 2000-V Human-Body Model (A114-B, Class II)
- 1000-V Charged-Device Model (C101)
Supports Digital Applications: Level Translation, USB Interface, Bus Isolation
Ideal for Low-Power Portable Equipment

View All Features in Datasheet

Description

The SN74CB3T3125 is a high-speed TTL-compatible FET bus switch with low ON-state resistance (r_on), allowing for minimal propagation delay. The device fully supports mixed-mode signal operation on all data I/O ports by providing voltage translation that tracks V_CC. The SN74CB3T3125 supports systems using 5-V TTL, 3.3-V LVTTL, and 2.5-V CMOS switching standards, as well as user-defined switching levels (see Figure 1).

The SN74CB3T3125 is organized as four 1-bit bus switches with separate output-enable (1OE\, 2OE\, 3OE\, 4OE\) inputs. It can be used as four 1-bit bus switches or as one 4-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.

View All Description in Datasheet

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
74CB3T3125DGVRE4	ACTIVE	-40 to 85	1.10 \| 1ku	TVSOP (DGV) \| 14		2000 \| LARGE T&R
74CB3T3125DGVRG4	ACTIVE	-40 to 85	1.10 \| 1ku	TVSOP (DGV) \| 14		2000 \| LARGE T&R
74CB3T3125RGYRG4	ACTIVE	-40 to 85	1.21 \| 1ku	QFN (RGY) \| 14	View	1000 \| LARGE T&R
SN74CB3T3125DGVR	ACTIVE	-40 to 85	1.10 \| 1ku	TVSOP (DGV) \| 14		2000 \| LARGE T&R
SN74CB3T3125PW	ACTIVE	-40 to 85	1.21 \| 1ku	TSSOP (PW) \| 14	View	90 \| TUBE	Purchase Samples
SN74CB3T3125PWE4	ACTIVE	-40 to 85	1.21 \| 1ku	TSSOP (PW) \| 14	View	90 \| TUBE	Purchase Samples
SN74CB3T3125PWG4	ACTIVE	-40 to 85	1.21 \| 1ku	TSSOP (PW) \| 14	View	90 \| TUBE	Purchase Samples
SN74CB3T3125PWR	ACTIVE	-40 to 85	1.10 \| 1ku	TSSOP (PW) \| 14	View	2000 \| LARGE T&R
SN74CB3T3125PWRE4	ACTIVE	-40 to 85	1.10 \| 1ku	TSSOP (PW) \| 14	View	2000 \| LARGE T&R
SN74CB3T3125PWRG4	ACTIVE	-40 to 85	1.10 \| 1ku	TSSOP (PW) \| 14	View	2000 \| LARGE T&R
SN74CB3T3125RGYR	ACTIVE	-40 to 85	1.21 \| 1ku	QFN (RGY) \| 14	View	1000 \| 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 11:06 AM GMT, 24 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 12 Weeks74CB3T3125DGVRE4
Worldwide	DigiKey	Available
TI Lead Time*: 12 Weeks74CB3T3125DGVRG4
Worldwide	DigiKey	Available
TI Lead Time*: 16 Weeks74CB3T3125RGYRG4
None Reported View Distributors
TI Lead Time*: 12 WeeksSN74CB3T3125DGVR
Americas	Rochester Electronics	>1k
Worldwide	DigiKey	240
Worldwide	Mouser Electronics	>1k
TI Lead Time*: 20 WeeksSN74CB3T3125PW
Americas	Arrow	234
Americas	Rochester Electronics	>1k
Asia	Farnell Asia	180
Europe	Avnet-SILICA	15
Europe	Farnell	180
TI Lead Time*: 20 WeeksSN74CB3T3125PWE4
None Reported View Distributors
TI Lead Time*: 20 WeeksSN74CB3T3125PWG4
Worldwide	Mouser Electronics	291
TI Lead Time*: 20 WeeksSN74CB3T3125PWR
Worldwide	Mouser Electronics	1
TI Lead Time*: 20 WeeksSN74CB3T3125PWRE4
None Reported View Distributors
TI Lead Time*: 20 WeeksSN74CB3T3125PWRG4
None Reported View Distributors
TI Lead Time*: 16 WeeksSN74CB3T3125RGYR
Americas	Rochester Electronics	>1k
Asia	WPI	858
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
74CB3T3125DGVRE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
74CB3T3125DGVRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
74CB3T3125RGYRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
SN74CB3T3125DGVR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74CB3T3125PW	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74CB3T3125PWE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74CB3T3125PWG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74CB3T3125PWR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74CB3T3125PWRE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74CB3T3125PWRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74CB3T3125RGYR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	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 SN74CB3T3125

Datasheet

SN74CB3T3125 (Rev. A) (PDF, 628 KB)
01 Jan 2006

Application Notes

Bus FET Switch Solutions for Live Insertion Applications (HTM, 8 KB) 2016 views
07 Feb 2003 Read Abstract
CBT-C, CB3T, and CB3Q Signal-Switch Families (HTM, 8 KB) 2142 views
04 Feb 2003 Read Abstract
Shelf-Life Evaluation of Lead-Free Component Finishes (HTM, 8 KB) 27253 views
24 May 2004 Read Abstract
Selecting the Right Level Translation Solution (Rev. A) (HTM, 8 KB) 15581 views
22 Jun 2004 Read Abstract
Understanding and Interpreting Standard-Logic Data Sheets (Rev. B) (HTM, 8 KB) 21693 views
28 May 2003 Read Abstract

View Application Notes for Translating Bus Switches

User Guides

LOGIC Pocket Data Book (Rev. B) (PDF, 6001 KB) 47354 views
16 Jan 2007
Signal Switch Data Book (Rev. A) (PDF, 18396 KB) 9650 views
14 Nov 2003

Selection Guides

Logic Guide 2009 (Rev. Z) (PDF, 4263 KB) 90646 views
23 Jul 2009

More Literature

Logic Cross-Reference (Rev. A) (PDF, 2938 KB) 15425 views
07 Oct 2003
Digital Bus Switch Selection Guide (Rev. A) (PDF, 719 KB) 2732 views
10 Nov 2004

View More Literature for Translating Bus Switches

Simulation Models

IBIS Model
- SN74CB3T3125 IBIS Model (Multiple File Format) 198 views
  03 Feb 2003 Read Abstract

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SN74CB3T3125 Status: ACTIVE

3.3-V Low-Voltage Quadruple FET Bus Switch with 5-V Tolerant Level Shifter

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