SN74AVC20T245 Status: ACTIVE

20-Bit Dual Supply Bus Transceiver with Configurable Voltage Translation and 3-State Outputs

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Datasheet

SN74AVC20T245 (Rev. F) (sn74avc20t245.pdf, 603 KB)
19 Apr 2005 Download

	74AVC20T245-1.2V	74AVC20T245-1.5V	74AVC20T245-1.8V	74AVC20T245-2.5V	74AVC20T245-3.3V
Voltage Nodes(V)	1.2	1.5	1.8	2.5	3.3
Vcc range(V)	1.2 to 3.6	1.2 to 3.6	1.2 to 3.6	1.2 to 3.6	1.2 to 3.6
Logic	True	True	True	True	True
No. of Bits	20	20	20	20	20
Bus Drive(ma)	-3/3	-6/6	-8/8	-9/9	-12/12
Static Current	0.035	0.035	0.035	0.035	0.035
tpd max(ns)		6.4	5	3.5	2.9
Technology Family	AVC	AVC	AVC	AVC	AVC
Rating	Catalog	Catalog	Catalog	Catalog	Catalog
	Samples	Samples	Samples	Samples	Samples
	Inventory Not Available	Inventory Not Available	Inventory Not Available	Inventory Not Available	Inventory Not Available

Customers Who Evaluated This Product Also Evaluated

SN74AVC16T245: 16-Bit Dual-Supply Bus Transceiver with Configurable Voltage Translation and 3-State Outputs
SN74LVC2T45: Dual-Bit Dual Supply Transceiver with Configurable Voltage Translation and 3-State Outputs
SN74AVCAH164245: 16-Bit Dual-Supply Bus Transceiver W/Configurable Voltage Translation
SN74LVC1G125: Single Bus Buffer Gate With 3-State Outputs
SN74LVC245A: Octal Bus Transceiver With 3-State Outputs
RC4558: Dual General-Purpose Operational Amplifier

Product Information

Features

Control Inputs V_IH/V_IL Levels are Referenced to V_CCA Voltage
V_CC Isolation Feature - If Either V_CC Input Is at GND, Both Ports Are in the High-Impedance State
Overvoltage-Tolerant Inputs/Outputs Allow Mixed-Voltage-Mode Data Communications
Fully Configurable Dual-Rail Design Allows Each Port to Operate Over the Full 1.2-V to 3.6-V Power-Supply Range
I_off Supports Partial-Power-Down Mode Operation
I/Os Are 4.6-V Tolerant
Max Data Rates
- 380 Mbps (1.8-V to 3.3-V Translation)
- 260 Mbps (1.8-V to 3.3-V Translation)
- 260 Mbps (Translate to 2.5 V)
- 210 Mbps (Translate to 1.8 V)
- 120 Mbps (Translate to 1.5 V)
- 100 Mbps (Translate to 1.2 V)
Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
ESD Protection Exceeds JESD 22
- 8000-V Human-Body Model (A114-A)
- 200-V Machine Model (A115-A)
- 1000-V Charged-Device Model (C101)

Description

This 20-bit noninverting bus transceiver uses two separate configurable power-supply rails.

The SN74AVC20T245 is optimized to operate with V_CCA/V_CCB set at 1.4 V to 3.6 V. It is operational with V_CCA/V_CCB as low as 1.2 V. The A port is designed to track V_CCA. V_CCA accepts any supply voltage from 1.2 V to 3.6 V. The B port is designed to track V_CCB. V_CCB accepts any supply voltage from 1.2 V to 3.6 V. This allows for universal low-voltage bidirectional translation between any of the 1.2-V, 1.5-V, 1.8-V, 2.5-V, and 3.3-V voltage nodes.

The SN74AVC20T245 is designed for asynchronous communication between data buses. The device transmits data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE)\ input can be used to disable the outputs so that the buses are effectively isolated.

The SN74AVC20T245 is designed so that the control (1DIR, 2DIR, 1OE\, and 2OE\) inputs are supplied by V_CCA.

This device is fully specified for partial-power-down applications using I_off. The I_off circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.

The V_CC isolation feature ensures that if either V_CC input is at GND, both ports are in the high-impedance state.

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
74AVC20T245DGGG4	PREVIEW	-40 to 85		TSSOP (DGG) \| 56	View	35 \| TUBE		Not Available
74AVC20T245DGGRE4	ACTIVE	-40 to 85	1.58 \| 1ku	TSSOP (DGG) \| 56	View	2000 \| LARGE T&R
74AVC20T245DGGRG4	ACTIVE	-40 to 85	1.58 \| 1ku	TSSOP (DGG) \| 56	View	2000 \| LARGE T&R
74AVC20T245DGVRE4	ACTIVE	-40 to 85	1.58 \| 1ku	TVSOP (DGV) \| 56		2000 \| LARGE T&R
74AVC20T245DGVRG4	ACTIVE	-40 to 85	1.58 \| 1ku	TVSOP (DGV) \| 56		2000 \| LARGE T&R
SN74AVC20T245DGG	PREVIEW	-40 to 85		TSSOP (DGG) \| 56	View	35 \| TUBE	Not Available
SN74AVC20T245DGGR	ACTIVE	-40 to 85	1.58 \| 1ku	TSSOP (DGG) \| 56	View	2000 \| LARGE T&R
SN74AVC20T245DGVR	ACTIVE	-40 to 85	1.58 \| 1ku	TVSOP (DGV) \| 56		2000 \| LARGE T&R
SN74AVC20T245GQLR	NRND	-40 to 85	5.50 \| 1ku	BGA MICROSTAR JUNIOR (GQL) \| 56	View	1000 \| LARGE T&R	Not Available
SN74AVC20T245ZQLR	ACTIVE	-40 to 85	1.73 \| 1ku	BGA MICROSTAR JUNIOR (ZQL) \| 56	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

	TI Inventory Status			Reported Distributor Inventory
74AVC20T245DGGG4	As of 8:39 AM GMT, 15 Oct 2008			As of 8:39 AM GMT, 15 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	1190*	>10k \| 1 Dec	10 Weeks	None Reported View Distributors
74AVC20T245DGGRE4	As of 8:39 AM GMT, 15 Oct 2008			As of 8:39 AM GMT, 15 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 26 Nov	6 Weeks	None Reported View Distributors
74AVC20T245DGGRG4	As of 8:39 AM GMT, 15 Oct 2008			As of 8:39 AM GMT, 15 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 26 Nov	6 Weeks	None Reported View Distributors
74AVC20T245DGVRE4	As of 8:39 AM GMT, 15 Oct 2008			As of 8:39 AM GMT, 15 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	>10k*	66 \| 17 Oct	4 Weeks	None Reported View Distributors
	>10k*	>10k \| 11 Nov	4 Weeks
74AVC20T245DGVRG4	As of 8:39 AM GMT, 15 Oct 2008			As of 8:39 AM GMT, 15 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	>10k*	66 \| 17 Oct	4 Weeks	Americas	Mouser Electronics	>1k
	>10k*	>10k \| 11 Nov	4 Weeks
SN74AVC20T245DGG	As of 8:39 AM GMT, 15 Oct 2008			As of 8:39 AM GMT, 15 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	1190*	>10k \| 1 Dec	10 Weeks	None Reported View Distributors
SN74AVC20T245DGGR	As of 8:39 AM GMT, 15 Oct 2008			As of 8:39 AM GMT, 15 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 26 Nov	6 Weeks	Americas	Avnet	>1k
					DigiKey	>1k
					Mouser Electronics	>1k
					Rochester Electronics	>1k
				Europe	EBV Elektronik	572
SN74AVC20T245DGVR	As of 8:39 AM GMT, 15 Oct 2008			As of 8:39 AM GMT, 15 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	>10k*	66 \| 17 Oct	4 Weeks	Americas	Arrow	>1k
		>10k \| 11 Nov			DigiKey	>1k
					Mouser Electronics	>1k
				Europe	Avnet-SILICA	>1k
SN74AVC20T245GQLR	As of 8:39 AM GMT, 15 Oct 2008			As of 8:39 AM GMT, 15 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 30 Oct	9 Weeks	Americas	Rochester Electronics	>1k
SN74AVC20T245ZQLR	As of 8:39 AM GMT, 15 Oct 2008			As of 8:39 AM GMT, 15 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 28 Oct	4 Weeks	Americas	Avnet	1k
					DigiKey	>1k
					Mouser Electronics	498
				Asia	WPI	>1k
View all Distributors

* Our information is updated daily, so please check back with us soon if this does not meet your needs. You may also contact your TI Authorized Distributor , including those listed above, for real time stock information.

** 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
74AVC20T245DGGG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
74AVC20T245DGGRE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
74AVC20T245DGGRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
74AVC20T245DGVRE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
74AVC20T245DGVRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74AVC20T245DGG	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74AVC20T245DGGR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74AVC20T245DGVR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74AVC20T245GQLR	TBD	SNPB	Level-1-240C-UNLIM	View	View
SN74AVC20T245ZQLR	Green (RoHS & no Sb/Br)	SNAGCU	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

Datasheets

SN74AVC20T245 (Rev. F) (sn74avc20t245.pdf, 603 KB)
19 Apr 2005 Download

Application Notes

Voltage Translation Between 3.3-V, 2.5-V, 1.8-V, and 1.5-V Logic Standards (Rev. A) (scea030a.htm, 9 KB)
08 Jul 2004 Abstract
Selecting the Right Level Translation Solution (Rev. A) (scea035a.htm, 8 KB)
22 Jun 2004 Abstract
Shelf-Life Evaluation of Lead-Free Component Finishes (szza046.htm, 8 KB)
24 May 2004 Abstract
Understanding and Interpreting Standard-Logic Data Sheets (Rev. B) (szza036b.htm, 8 KB)
28 May 2003 Abstract
16-Bit Widebus Logic Families in 56-Ball, 0.65-mm Pitch Very Thin Fine-Pitch BGA (Rev. B) (szza029b.htm, 8 KB)
22 May 2002 Abstract
Dynamic Output Control (DOC) Circuitry Technology And Applications (Rev. B) (scea009b.htm, 9 KB)
07 Jul 1999 Abstract
AVC Logic Family Technology and Applications (Rev. A) (scea006a.htm, 9 KB)
26 Aug 1998 Abstract

View Application Notes for Dual Supply Translators

User Guides

LOGIC Pocket Data Book (Rev. B) (scyd013b.pdf, 6001 KB)
16 Jan 2007 Download
AVC Advanced Very-Low-Voltage CMOS Logic Data Book, March 2000 (Rev. C) (sced008c.pdf, 5140 KB)
20 Aug 2002 Download

Simulation Models

IBIS Model
- IBIS Model of SN74AVC20T245 (Rev. A) (scem429a.ibs, 400 KB)
  20 Apr 2004 ibis
HSpice Model
- HSPICE MODEL OF SN74AVC20T245 (scej164.zip, 126 KB)
  16 Sep 2004 zip

More Literature

Logic Selection Guide 2007 (Rev. Z) (sdyu001z.pdf, 2862 KB)
24 Apr 2007 Download
Dual-Supply Level Translation Product Clip (Rev. B) (scyb033b.pdf, 328 KB)
10 Apr 2006 Download
Logic Cross-Reference (Rev. A) (scyb017a.pdf, 2938 KB)
07 Oct 2003 Download
LCD Module Interface Application Clip (scyb012.pdf, 950 KB)
09 May 2003 Download
Standard Linear & Logic for PCs, Servers & Motherboards (scyb005.pdf, 3997 KB)
13 Jun 2002 Download

View More Literature for Dual Supply Translators

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SN74AVC20T245 Status: ACTIVE

20-Bit Dual Supply Bus Transceiver with Configurable Voltage Translation and 3-State Outputs

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Datasheet

Customers Who Evaluated This Product Also Evaluated