SN74AVCH8T245 Status: ACTIVE

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

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Datasheet

SN74AVCH8T245 (Rev. G) (PDF 676 KB)
13 Mar 2007

	SN74AVCH8T245
Vcc range(V)	1.2 to 3.6
Logic	True
No. of Bits	8
Bus Drive(ma)	-12/12
Static Current	0.025
tpd max(ns)	2.5
Technology Family	AVC
Pin/Package	24QFN, 24TSSOP, 24TVSOP
Operating Temp Range(Celsius)	-40 to 85
Approx. Price (US$)	1.10 \| 1ku
Rating	Catalog
	Samples
	Inventory

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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, All I/O Ports Are in the High-Impedance State
I_off Supports Partial-Power-Down Mode Operation
Fully Configurable Dual-Rail Design Allows Each Port to Operate Over the Full 1.2-V to 3.6-V Power-Supply Range
I/Os Are 4.6-V Tolerant
Max Data Rates:
- 320 Mbps (V_CCA ≤ 1.8 V and V_CCB ≤ 1.8 V)
- 170 Mbps (V_CCA ≥ 1.8 V or V_CCB ≥ 1.8 V)
Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors
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/ORDERING INFORMATION

This 8-bit noninverting bus transceiver uses two separate configurable power-supply rails. The SN74AVCH8T245 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 SN74AVCH8T245 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 the buses are effectively isolated.

The SN74AVCH8T245 is designed so the control pins (DIR and OE) are supplied by V_CCA.

The SN74AVCH8T245 solution is compatible with a single-supply system and can be replaced later with a '245 function, with minimal printed circuit board redesign.

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 outputs are in the high-impedance state. The bus-hold circuitry on the powered-up side always stays active.

Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended.

To ensure the high-impedance state during power up or power down, OE shall 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
74AVCH8T245DGVRE4	ACTIVE	-40 to 85	1.10 \| 1ku	TVSOP (DGV) \| 24		2000 \| LARGE T&R
74AVCH8T245DGVRG4	ACTIVE	-40 to 85	1.10 \| 1ku	TVSOP (DGV) \| 24		2000 \| LARGE T&R
74AVCH8T245PWRE4	ACTIVE	-40 to 85	1.10 \| 1ku	TSSOP (PW) \| 24	View	2000 \| LARGE T&R
74AVCH8T245PWRG4	ACTIVE	-40 to 85	1.10 \| 1ku	TSSOP (PW) \| 24	View	2000 \| LARGE T&R
74AVCH8T245RHLRG4	ACTIVE	-40 to 85	1.10 \| 1ku	QFN (RHL) \| 24		1000 \| LARGE T&R
SN74AVCH8T245DGVR	ACTIVE	-40 to 85	1.10 \| 1ku	TVSOP (DGV) \| 24		2000 \| LARGE T&R
SN74AVCH8T245PW	ACTIVE	-40 to 85	1.25 \| 1ku	TSSOP (PW) \| 24	View	60 \| TUBE	Purchase Samples
SN74AVCH8T245PWE4	ACTIVE	-40 to 85	1.25 \| 1ku	TSSOP (PW) \| 24	View	60 \| TUBE	Purchase Samples
SN74AVCH8T245PWG4	ACTIVE	-40 to 85	1.25 \| 1ku	TSSOP (PW) \| 24	View	60 \| TUBE	Purchase Samples
SN74AVCH8T245PWR	ACTIVE	-40 to 85	1.10 \| 1ku	TSSOP (PW) \| 24	View	2000 \| LARGE T&R
SN74AVCH8T245RHLR	ACTIVE	-40 to 85	1.10 \| 1ku	QFN (RHL) \| 24		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 11:05 AM GMT, 22 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 15 Weeks74AVCH8T245DGVRE4
None Reported View Distributors
TI Lead Time*: 15 Weeks74AVCH8T245DGVRG4
None Reported View Distributors
TI Lead Time*: 20 Weeks74AVCH8T245PWRE4
None Reported View Distributors
TI Lead Time*: 20 Weeks74AVCH8T245PWRG4
None Reported View Distributors
TI Lead Time*: 16 Weeks74AVCH8T245RHLRG4
None Reported View Distributors
TI Lead Time*: 15 WeeksSN74AVCH8T245DGVR
None Reported View Distributors
TI Lead Time*: 18 WeeksSN74AVCH8T245PW
Americas	Arrow	246
	Rochester Electronics	>1k
Asia	WPI	86
TI Lead Time*: 18 WeeksSN74AVCH8T245PWE4
None Reported View Distributors
TI Lead Time*: 18 WeeksSN74AVCH8T245PWG4
Europe	EBV Elektronik	30
TI Lead Time*: 20 WeeksSN74AVCH8T245PWR
Americas	Rochester Electronics	>1k
TI Lead Time*: 16 WeeksSN74AVCH8T245RHLR
Americas	Arrow	1k
	Rochester Electronics	>1k
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
74AVCH8T245DGVRE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
74AVCH8T245DGVRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
74AVCH8T245PWRE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
74AVCH8T245PWRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
74AVCH8T245RHLRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
SN74AVCH8T245DGVR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74AVCH8T245PW	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74AVCH8T245PWE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74AVCH8T245PWG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74AVCH8T245PWR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74AVCH8T245RHLR	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 SN74AVCH8T245

Datasheet

SN74AVCH8T245 (Rev. G) (PDF, 676 KB)
13 Mar 2007

Application Notes

Shelf-Life Evaluation of Lead-Free Component Finishes (HTM, 8 KB) 27231 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) 4350 views
08 Jul 2004 Read Abstract
Selecting the Right Level Translation Solution (Rev. A) (HTM, 8 KB) 15569 views
22 Jun 2004 Read Abstract
Understanding and Interpreting Standard-Logic Data Sheets (Rev. B) (HTM, 8 KB) 21673 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) 1122 views
22 May 2002 Read Abstract
Dynamic Output Control (DOC) Circuitry Technology And Applications (Rev. B) (HTM, 9 KB) 773 views
07 Jul 1999 Read Abstract
AVC Logic Family Technology and Applications (Rev. A) (HTM, 9 KB) 1527 views
26 Aug 1998 Read Abstract

View Application Notes for Dual Supply Translators

User Guides

LOGIC Pocket Data Book (Rev. B) (PDF, 6001 KB) 47290 views
16 Jan 2007
AVC Advanced Very-Low-Voltage CMOS Logic Data Book, March 2000 (Rev. C) (PDF, 5140 KB) 1471 views
20 Aug 2002

Selection Guides

Logic Guide 2009 (Rev. Z) (PDF, 4263 KB) 90505 views
23 Jul 2009

More Literature

Logic Cross-Reference (Rev. A) (PDF, 2938 KB) 15408 views
07 Oct 2003
Dual-Supply Level Translation Product Clip (Rev. B) (PDF, 328 KB) 2463 views
10 Apr 2006
LCD Module Interface Application Clip (PDF, 950 KB) 1506 views
09 May 2003
Standard Linear & Logic for PCs, Servers & Motherboards (PDF, 3997 KB) 1225 views
13 Jun 2002

View More Literature for Dual Supply Translators

Simulation Models

IBIS Model
- SN74AVCH8T245 IBIS Model (Multiple File Format) 196 views
  02 Apr 2004 Read Abstract

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SN74AVCH8T245 Status: ACTIVE

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

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