Buffers, Drivers and Transceivers - Standard Transceivers - CD74HC245

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Datasheet

CD54HC245, CD74HC245, CD54HCT245, CD74HCT245 (Rev. A) (PDF 441 KB)
28 Apr 2003

	CD54HC245	CD74HC245
Voltage Nodes(V)	6, 5, 2
Rating	Military	Catalog
Technology Family	HC	HC
	Samples	Samples
	Inventory	Inventory

Other qualified versions of CD74HC245

Version	Part Number	Definition
Military	CD54HC245	QML certified for Military and Defense Applications

Customers Who Evaluated This Product Also Evaluated

SN74HC245: Octal Bus Transceivers With 3-State Outputs

Product Information

Features

Buffered Inputs
Three-State Outputs
Bus Line Driving Capability
Typical Propagation Delay (A to B, B to A) 9ns at V_CC = 5V, C_L = 15pF, T_A = 25°C
Fanout (Over Temperature Range)
- Standard Outputs. . . . . . . . . . . . . . . 10 LSTTL Loads
- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads
Wide Operating Temperature Range . . . -55°C to 125°C
Balanced Propagation Delay and Transition Times
Significant Power Reduction Compared to LSTTL Logic ICs
HC Types
- 2V to 6V Operation
- High Noise Immunity: N_IL = 30%, N_IH = 30% of V_CC at V_CC = 5V
HCT Types
- 4.5V to 5.5V Operation
- Direct LSTTL Input Logic Compatibility, V_IL = 0.8V (Max), V_IH = 2V (Min)
- CMOS Input Compatibility, I_l ≤ 1µA at V_OL , V_OH

Description

The CD54HC245, CD54HCT245, and CD74HC245, CD74HCT245 are high-speed octal three-state bidirectional transceivers intended for two-way asynchronous communication between data buses. They have high drive current outputs which enable high-speed operation while driving large bus capacitances. They provide the low power consumption of standard CMOS circuits with speeds and drive capabilities comparable to that of LSTTL circuits.

The CD54HC245, CD54HCT245, CD74HC245 and CD74HCT245 allow data transmission of the B bus or from the B bus to the A bus. The logic level at the direction input (DIR) determines the direction. The output enable input (OE\), when high, puts the I/O ports in the high-impedance state.

The HC/HCT245 is similar in operation to the HC/HCT640 and the HC/HCT643.

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
CD74HC245E	ACTIVE	-55 to 125	0.53 \| 1ku	PDIP (N) \| 20	View	20 \| TUBE	Contact TI Distributor or Sales Office
CD74HC245EE4	ACTIVE	-55 to 125	0.53 \| 1ku	PDIP (N) \| 20	View	20 \| TUBE	Contact TI Distributor or Sales Office
CD74HC245M	ACTIVE	-55 to 125	0.46 \| 1ku	SOIC (DW) \| 20	View	25 \| TUBE	Purchase Samples
CD74HC245M96	ACTIVE	-55 to 125	0.42 \| 1ku	SOIC (DW) \| 20	View	2000 \| LARGE T&R	Contact TI Distributor or Sales Office
CD74HC245M96E4	ACTIVE	-55 to 125	0.42 \| 1ku	SOIC (DW) \| 20	View	2000 \| LARGE T&R	Contact TI Distributor or Sales Office
CD74HC245M96G4	ACTIVE	-55 to 125	0.42 \| 1ku	SOIC (DW) \| 20	View	2000 \| LARGE T&R	Contact TI Distributor or Sales Office
CD74HC245ME4	ACTIVE	-55 to 125	0.46 \| 1ku	SOIC (DW) \| 20	View	25 \| TUBE	Purchase Samples
CD74HC245MG4	ACTIVE	-55 to 125	0.46 \| 1ku	SOIC (DW) \| 20	View	25 \| TUBE	Purchase Samples

* 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 11:58 AM GMT, 08 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 15 WeeksCD74HC245E
Americas	Arrow	526
	Avnet	>1k
	Newark	>1k
	Rochester Electronics	>1k
Europe	Avnet-SILICA	>1k
	EBV Elektronik	920
	Spoerle	680
Worldwide	DigiKey	>1k
Worldwide	Mouser Electronics	682
TI Lead Time*: 15 WeeksCD74HC245EE4
Europe	EBV Elektronik	10
Worldwide	DigiKey	Available
TI Lead Time*: 15 WeeksCD74HC245M
Americas	Arrow	>1k
	Avnet	222
	Newark	44
	Rochester Electronics	>1k
Asia	Farnell Asia	>1k
Europe	Arrow Southern Europe	>1k
	Avnet-SILICA	>1k
	EBV Elektronik	375
	Farnell	>1k
	Spoerle	>1k
Worldwide	DigiKey	Available
Worldwide	Mouser Electronics	13
TI Lead Time*: 15 WeeksCD74HC245M96
Americas	Rochester Electronics	>1k
Europe	Avnet-SILICA	>1k
Worldwide	DigiKey	>1k
Worldwide	Mouser Electronics	>1k
TI Lead Time*: 15 WeeksCD74HC245M96E4
Worldwide	DigiKey	Available
TI Lead Time*: 15 WeeksCD74HC245M96G4
Worldwide	DigiKey	Available
TI Lead Time*: 15 WeeksCD74HC245ME4
Worldwide	DigiKey	Available
TI Lead Time*: 15 WeeksCD74HC245MG4
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
CD74HC245E	Pb-Free (RoHS)	CU NIPDAU	N/A for Pkg Type	View	View
CD74HC245EE4	Pb-Free (RoHS)	CU NIPDAU	N/A for Pkg Type	View	View
CD74HC245M	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
CD74HC245M96	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
CD74HC245M96E4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
CD74HC245M96G4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
CD74HC245ME4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
CD74HC245MG4	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 CD74HC245

Datasheet

CD54HC245, CD74HC245, CD54HCT245, CD74HCT245 (Rev. A) (PDF, 441 KB)
28 Apr 2003

Application Notes

Input and Output Characteristics of Digital Integrated Circuits (HTM, 9 KB) 9160 views
01 Oct 1996 Read Abstract
Live Insertion (HTM, 8 KB) 2410 views
01 Oct 1996 Read Abstract
Selecting the Right Texas Instruments Signal Switch (HTM, 8 KB) 5961 views
07 Sep 2001 Read Abstract
TI IBIS File Creation, Validation, and Distribution Processes (HTM, 9 KB) 3849 views
29 Aug 2002 Read Abstract
Shelf-Life Evaluation of Lead-Free Component Finishes (HTM, 8 KB) 26969 views
24 May 2004 Read Abstract
Designing With Logic (Rev. C) (HTM, 8 KB) 9068 views
01 Jun 1997 Read Abstract
SN54/74HCT CMOS Logic Family Applications and Restrictions (HTM, 8 KB) 3757 views
01 May 1996 Read Abstract
Using High Speed CMOS and Advanced CMOS in Systems With Multiple Vcc (HTM, 8 KB) 2053 views
01 Apr 1996 Read Abstract
Understanding and Interpreting Standard-Logic Data Sheets (Rev. B) (HTM, 8 KB) 21380 views
28 May 2003 Read Abstract
Implications of Slow or Floating CMOS Inputs (Rev. C) (HTM, 8 KB) 7013 views
01 Feb 1998 Read Abstract
CMOS Power Consumption and CPD Calculation (Rev. B) (HTM, 9 KB) 3135 views
01 Jun 1997 Read Abstract

View Application Notes for Standard Transceivers

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
SN74HC4851/HC4852 Product Clip (Rev. B) (PDF, 501 KB) 2573 views
11 May 2004

Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Product Family	Comments
SN74HC245	Octal Bus Transceivers With 3-State Outputs	BUFFERS, DRIVERS AND TRANSCEIVERS-STANDARD TRANSCEIVERS	TI customers also evaluated this product.

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CD74HC245 Status: ACTIVE

High Speed CMOS Logic Non-Inverting Octal-Bus Transceivers with 3-State Outputs

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Other qualified versions of CD74HC245

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Inventory

Quality & Lead (Pb)-Free Data

Technical Documents

Datasheet

Application Notes

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More Literature

Support and Community

Customer Tags

Other Support

CD74HC245 Status: ACTIVE

High Speed CMOS Logic Non-Inverting Octal-Bus Transceivers with 3-State Outputs

Most Popular Links

Datasheet

Other qualified versions of CD74HC245

Customers Who Evaluated This Product Also Evaluated

Product Information

Features

Description

Pricing / Packaging / CAD Design Tools / Samples

Inventory

Quality & Lead (Pb)-Free Data

Technical Documents

Datasheet

Application Notes

User Guides

Selection Guides

More Literature

Related Products

Support and Community

Customer Tags

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