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) (PDF 602 KB)
19 Apr 2005

	SN74AVC20T245
Vcc range(V)	1.2 to 3.6
Logic	True
No. of Bits	20
Bus Drive(ma)	-12/12
Static Current	0.035
tpd max(ns)	2.9
Technology Family	AVC
Pin/Package	56BGA MICROSTAR JUNIOR, 56TSSOP, 56TVSOP
Operating Temp Range(Celsius)	-40 to 85
Approx. Price (US$)	1.60 \| 1ku
Rating	Catalog
	Samples
	Inventory

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SN74AVC8T245: 8-Bit Dual-Supply Bus Transceiver with Configurable Voltage Translation and 3-State Outputs
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OPA2277: High Precision Operational Amplifiers
TPS65053: 5-Channel Power Mgmt IC with two step down converters and 3 low-input voltage LDOs
BQ24103A: Standalone Synchronous Switch-mode Li-Ion Charger with 2A FET

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	1.60 \| 1ku	TSSOP (DGG) \| 56	View	2000 \| LARGE T&R
74AVC20T245DGGRG4	ACTIVE	-40 to 85	1.60 \| 1ku	TSSOP (DGG) \| 56	View	2000 \| LARGE T&R
74AVC20T245DGVRE4	ACTIVE	-40 to 85	1.60 \| 1ku	TVSOP (DGV) \| 56		2000 \| LARGE T&R
74AVC20T245DGVRG4	ACTIVE	-40 to 85	1.60 \| 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	1.60 \| 1ku	TSSOP (DGG) \| 56	View	2000 \| LARGE T&R
SN74AVC20T245DGVR	ACTIVE	-40 to 85	1.60 \| 1ku	TVSOP (DGV) \| 56		2000 \| LARGE T&R
SN74AVC20T245GQLR	NRND	-40 to 85	1.60 \| 1ku	BGA MICROSTAR JUNIOR (GQL) \| 56	View	1000 \| LARGE T&R	Not Available
SN74AVC20T245ZQLR	ACTIVE	-40 to 85	1.70 \| 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

Reported Distributor Inventory as of 11:00 AM GMT, 08 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 18 Weeks74AVC20T245DGGG4
None Reported View Distributors
TI Lead Time*: 18 Weeks74AVC20T245DGGRE4
Worldwide	DigiKey	Available
TI Lead Time*: 18 Weeks74AVC20T245DGGRG4
Worldwide	DigiKey	Available
TI Lead Time*: 18 Weeks74AVC20T245DGVRE4
Worldwide	DigiKey	Available
TI Lead Time*: 18 Weeks74AVC20T245DGVRG4
Worldwide	DigiKey	Available
Worldwide	Mouser Electronics	>1k
TI Lead Time*: 18 WeeksSN74AVC20T245DGG
Americas	Rochester Electronics	>1k
TI Lead Time*: 18 WeeksSN74AVC20T245DGGR
Americas	Arrow	>1k
Americas	Rochester Electronics	>1k
Europe	EBV Elektronik	680
Worldwide	DigiKey	>1k
Worldwide	Mouser Electronics	607
TI Lead Time*: 18 WeeksSN74AVC20T245DGVR
Worldwide	DigiKey	>1k
TI Lead Time*: 12 WeeksSN74AVC20T245GQLR
Americas	Arrow	>1k
Americas	Rochester Electronics	>1k
TI Lead Time*: 13 WeeksSN74AVC20T245ZQLR
Americas	Arrow	>1k
	Avnet	1k
	Rochester Electronics	>1k
Asia	WPI	224
Worldwide	DigiKey	>1k
Worldwide	Mouser Electronics	361
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
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

Most useful technical documents for SN74AVC20T245

Datasheet

SN74AVC20T245 (Rev. F) (PDF, 602 KB)
19 Apr 2005

Application Notes

Shelf-Life Evaluation of Lead-Free Component Finishes (HTM, 8 KB) 26969 views
24 May 2004 Read Abstract
Voltage Translation Between 3.3-V, 2.5-V, 1.8-V, and 1.5-V Logic Standards (Rev. A) (HTM, 9 KB) 4302 views
08 Jul 2004 Read Abstract
Selecting the Right Level Translation Solution (Rev. A) (HTM, 8 KB) 15418 views
22 Jun 2004 Read Abstract
Understanding and Interpreting Standard-Logic Data Sheets (Rev. B) (HTM, 8 KB) 21380 views
28 May 2003 Read Abstract
16-Bit Widebus Logic Families in 56-Ball, 0.65-mm Pitch Very Thin Fine-Pitch BGA (Rev. B) (HTM, 8 KB) 1104 views
22 May 2002 Read Abstract
Dynamic Output Control (DOC) Circuitry Technology And Applications (Rev. B) (HTM, 9 KB) 763 views
07 Jul 1999 Read Abstract
AVC Logic Family Technology and Applications (Rev. A) (HTM, 9 KB) 1496 views
26 Aug 1998 Read Abstract

View Application Notes for Dual Supply Translators

User Guides

LOGIC Pocket Data Book (Rev. B) (PDF, 6001 KB) 46833 views
16 Jan 2007
AVC Advanced Very-Low-Voltage CMOS Logic Data Book, March 2000 (Rev. C) (PDF, 5140 KB) 1439 views
20 Aug 2002

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
Dual-Supply Level Translation Product Clip (Rev. B) (PDF, 328 KB) 2431 views
10 Apr 2006
LCD Module Interface Application Clip (PDF, 950 KB) 1461 views
09 May 2003
Standard Linear & Logic for PCs, Servers & Motherboards (PDF, 3997 KB) 1210 views
13 Jun 2002

View More Literature for Dual Supply Translators

Simulation Models

IBIS Model
- SN74AVC20T245 IBIS Model (Rev. A) (Multiple File Format) 280 views
  20 Apr 2004 Read Abstract
HSpice Model
- HSPICE MODEL OF SN74AVC20T245 (ZIP, 126 KB) 160 views
  16 Sep 2004

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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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