Digital Comparators - Magnitude Comparators - CD74HCT688

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Datasheet

CD54HC688, CD74HC688, CD54HCT688, CD74HCT688 (Rev. C) (PDF 535 KB)
21 Aug 2003

	CD54HCT688	CD74HCT688
Technology Family	HCT	HCT
	Samples	Samples
	Inventory	Inventory

Other qualified versions of CD74HCT688

Version	Part Number	Definition
Military	CD54HCT688	QML certified for Military and Defense Applications

Customers Who Evaluated This Product Also Evaluated

CD4541B: CMOS Programmable Timer - High Voltage Type (20V Rating)

OPT101: Monolithic Photodiode and Single-Supply Transimpedance Amplifier

Product Information

Features

Cascadable
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

Data sheet acquired from Harris Semiconductor

Description

The ’HC688 and ’HCT688 are 8-bit magnitude comparators designed for use in computer and logic applications that require the comparison of two 8-bit binary words. When the compared words are equal the output (Y) is low and can be used as the enabling input for the next device in a cascaded application.

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
CD74HCT688E	ACTIVE	-55 to 125	0.48 \| 1ku	PDIP (N) \| 20	View	20 \| TUBE	Contact TI Distributor or Sales Office
CD74HCT688EE4	ACTIVE	-55 to 125	0.48 \| 1ku	PDIP (N) \| 20	View	20 \| TUBE	Contact TI Distributor or Sales Office
CD74HCT688M	ACTIVE	-55 to 125	0.48 \| 1ku	SOIC (DW) \| 20	View	25 \| TUBE	Contact TI Distributor or Sales Office
CD74HCT688M96	ACTIVE	-55 to 125	0.44 \| 1ku	SOIC (DW) \| 20	View	2000 \| LARGE T&R	Contact TI Distributor or Sales Office
CD74HCT688M96E4	ACTIVE	-55 to 125	0.44 \| 1ku	SOIC (DW) \| 20	View	2000 \| LARGE T&R
CD74HCT688M96G4	ACTIVE	-55 to 125	0.44 \| 1ku	SOIC (DW) \| 20	View	2000 \| LARGE T&R
CD74HCT688ME4	ACTIVE	-55 to 125	0.48 \| 1ku	SOIC (DW) \| 20	View	25 \| TUBE	Contact TI Distributor or Sales Office
CD74HCT688MG4	ACTIVE	-55 to 125	0.48 \| 1ku	SOIC (DW) \| 20	View	25 \| TUBE	Contact TI Distributor or Sales Office

* 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 12:02 PM GMT, 22 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 15 WeeksCD74HCT688E
Americas	Arrow	33
	Avnet	>1k
	Newark	20
	Rochester Electronics	>1k
Europe	Arrow Southern Europe	620
	Avnet-SILICA	540
	EBV Elektronik	>1k
	Spoerle	>1k
Worldwide	DigiKey	>1k
TI Lead Time*: 15 WeeksCD74HCT688EE4
Worldwide	DigiKey	Available
TI Lead Time*: 15 WeeksCD74HCT688M
Americas	Arrow	>1k
	Avnet	155
	Rochester Electronics	>1k
Asia	Farnell Asia	693
Asia	WPI	63
Europe	Abacus Polar	35
	Arrow Northern Europe	>1k
	Arrow Southern Europe	>1k
	Avnet-SILICA	>1k
	EBV Elektronik	>1k
	Farnell	648
Worldwide	DigiKey	762
Worldwide	Mouser Electronics	757
TI Lead Time*: 15 WeeksCD74HCT688M96
Americas	Rochester Electronics	>1k
Europe	Arrow Northern Europe	>1k
Europe	EBV Elektronik	1k
Worldwide	DigiKey	Available
TI Lead Time*: 15 WeeksCD74HCT688M96E4
Worldwide	DigiKey	Available
TI Lead Time*: 15 WeeksCD74HCT688M96G4
Worldwide	DigiKey	Available
TI Lead Time*: 15 WeeksCD74HCT688ME4
Worldwide	DigiKey	Available
TI Lead Time*: 15 WeeksCD74HCT688MG4
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
CD74HCT688E	Pb-Free (RoHS)	CU NIPDAU	N/A for Pkg Type	View	View
CD74HCT688EE4	Pb-Free (RoHS)	CU NIPDAU	N/A for Pkg Type	View	View
CD74HCT688M	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
CD74HCT688M96	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
CD74HCT688M96E4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
CD74HCT688M96G4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
CD74HCT688ME4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
CD74HCT688MG4	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 CD74HCT688

Datasheet

CD54HC688, CD74HC688, CD54HCT688, CD74HCT688 (Rev. C) (PDF, 535 KB)
21 Aug 2003

Application Notes

TI IBIS File Creation, Validation, and Distribution Processes (HTM, 9 KB) 3902 views
29 Aug 2002 Read Abstract
Shelf-Life Evaluation of Lead-Free Component Finishes (HTM, 8 KB) 27231 views
24 May 2004 Read Abstract
Designing With Logic (Rev. C) (HTM, 8 KB) 9152 views
01 Jun 1997 Read Abstract
SN54/74HCT CMOS Logic Family Applications and Restrictions (HTM, 8 KB) 3809 views
01 May 1996 Read Abstract
Using High Speed CMOS and Advanced CMOS in Systems With Multiple Vcc (HTM, 8 KB) 2078 views
01 Apr 1996 Read Abstract
Understanding and Interpreting Standard-Logic Data Sheets (Rev. B) (HTM, 8 KB) 21673 views
28 May 2003 Read Abstract
Implications of Slow or Floating CMOS Inputs (Rev. C) (HTM, 8 KB) 7099 views
01 Feb 1998 Read Abstract
CMOS Power Consumption and CPD Calculation (Rev. B) (HTM, 9 KB) 3169 views
01 Jun 1997 Read Abstract

View Application Notes for Magnitude Comparators

User Guides

LOGIC Pocket Data Book (Rev. B) (PDF, 6001 KB) 47290 views
16 Jan 2007
Signal Switch Data Book (Rev. A) (PDF, 18396 KB) 9634 views
14 Nov 2003

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

Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Product Family	Comments
CD4541B	CMOS Programmable Timer - High Voltage Type (20V Rating)	SPECIALTY LOGIC-RATE MULTIPLIERS/FREQUENCY DIVIDERS/TIMERS	TI customers also evaluated this product.
OPT101	Monolithic Photodiode and Single-Supply Transimpedance Amplifier	OPTOELECTRONIC PRODUCTS-LIGHT TO VOLTAGE	TI customers also evaluated this product.

Support and Community

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CD74HCT688 Status: ACTIVE

8-Bit Identity/Magnitude Comparators (P=Q) with Enable

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Datasheet

Other qualified versions of CD74HCT688

Customers Who Evaluated This Product Also Evaluated

Product Information

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Description

Pricing / Packaging / CAD Design Tools / Samples

Inventory

Quality & Lead (Pb)-Free Data

Technical Documents

Datasheet

Application Notes

User Guides

Selection Guides

More Literature

Support and Community

Customer Tags

Other Support

CD74HCT688 Status: ACTIVE

8-Bit Identity/Magnitude Comparators (P=Q) with Enable

Most Popular Links

Datasheet

Other qualified versions of CD74HCT688

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

Other Support