CD4508B Status: ACTIVE

CMOS Dual 4-Bit Latch

Harris

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Datasheet

CD4508B TYPES (Rev. B) (cd4508b.pdf, 701 KB)
16 Jun 2003 Download

	CD4508B
Voltage Nodes(V)	5, 10, 15
Rating	Catalog
Technology Family	CD4000
	Samples
	Inventory

Other qualified versions of CD4508B

Version	Part Number	Definition
Military	CD4508B-MIL	QML certified for Military and Defense Applications

Customers Who Evaluated This Product Also Evaluated

CD4076B: CMOS 4-Bit D-Type Registers with Clock and 3-State Outputs
CD4724B: CMOS 8-Bit Addressable Latch
CD4099B: CMOS 8-Bit Addressable Latch

Product Information

Features

Two independent 4-bit latches
Individual master reset for each 4-bit latch
3-state outputs with high-impedance state for bus line applications
Medium-speed operation: t_PHL = t_PLH = 70 ns (typ.) at V_DD = 10 V and C_L = 50 pF
100% tested for quiescent current at 20 V
5-V, 10-V, and 15-V parametric ratings
Standardized, symmetrical output characteristics
Maximum input current of 1 µA at 18 V over full package-temperature range; 100 nA at 18 V and 25°C
Noise margin (full package-temperature range) =
        1 V at V_DD = 5 V
        2 V at V_DD = 10 V
     2.5 V at V_DD = 15 V
Meets all requirements of JEDEC Tentative Standard No. 13B, "Standard Specifications for Description of ’B’ Series CMOS Devices"
Applications:
- Buffer storage
- Holding registers
- Data storage and multiplexing

Description

CD4508B dual 4-bit latch contains two identical 4-bit latches with separate STROBE, RESET, and OUTPUT DISABLE control. With the STROBE line in the high state, the data on the "D" inputs appear at the corresponding "Q" outputs provided the DISABLE line is in the low state. Changing the STROBE line to the low state locks the data into the latch. A high on the reset line forces the outputs to a low level regardless of the state of the STROBE input. The outputs are forced to the high-impedance state for bus line applications by a high level on the DISABLE input.

The CD4508B types are supplied in 24-lead hermetic dual-in-line ceramic packages (F3A suffix), 24-lead dual-in-line plastic packages (E suffix), 24-lead small-outline packages (M, M96, and NSR suffixes), and 24-lead thin shrink small-outline packages (PW and PWR suffixes).

The CD4508B is similar to industry type MC14508.

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
CD4508BE	ACTIVE	-55 to 125	1.36 \| 1ku	PDIP (N) \| 24	View	15 \| TUBE	Contact TI Distributor or Sales Office
CD4508BEE4	ACTIVE	-55 to 125	1.36 \| 1ku	PDIP (N) \| 24	View	15 \| TUBE	Contact TI Distributor or Sales Office
CD4508BM	ACTIVE	-55 to 125	1.36 \| 1ku	SOIC (DW) \| 24	View	25 \| TUBE	Purchase Samples
CD4508BM96	ACTIVE	-55 to 125	1.36 \| 1ku	SOIC (DW) \| 24	View	2000 \| LARGE T&R	Purchase Samples
CD4508BM96E4	ACTIVE	-55 to 125	1.36 \| 1ku	SOIC (DW) \| 24	View	2000 \| LARGE T&R	Purchase Samples
CD4508BM96G4	ACTIVE	-55 to 125	1.36 \| 1ku	SOIC (DW) \| 24	View	2000 \| LARGE T&R	Purchase Samples
CD4508BME4	ACTIVE	-55 to 125	1.36 \| 1ku	SOIC (DW) \| 24	View	25 \| TUBE	Purchase Samples
CD4508BMG4	ACTIVE	-55 to 125	1.36 \| 1ku	SOIC (DW) \| 24	View	25 \| TUBE	Purchase Samples
CD4508BNSR	ACTIVE	-55 to 125	1.36 \| 1ku	SO (NS) \| 24	View	2000 \| LARGE T&R	Purchase Samples
CD4508BNSRE4	ACTIVE	-55 to 125	1.36 \| 1ku	SO (NS) \| 24	View	2000 \| LARGE T&R	Purchase Samples
CD4508BNSRG4	ACTIVE	-55 to 125	1.36 \| 1ku	SO (NS) \| 24	View	2000 \| LARGE T&R	Purchase Samples
CD4508BPW	ACTIVE	-55 to 125	1.36 \| 1ku	TSSOP (PW) \| 24	View	60 \| TUBE	Purchase Samples
CD4508BPWE4	ACTIVE	-55 to 125	1.36 \| 1ku	TSSOP (PW) \| 24	View	60 \| TUBE	Purchase Samples
CD4508BPWG4	ACTIVE	-55 to 125	1.36 \| 1ku	TSSOP (PW) \| 24	View	60 \| TUBE	Purchase Samples
CD4508BPWR	ACTIVE	-55 to 125	1.36 \| 1ku	TSSOP (PW) \| 24	View	2000 \| LARGE T&R	Purchase Samples
CD4508BPWRE4	ACTIVE	-55 to 125	1.36 \| 1ku	TSSOP (PW) \| 24	View	2000 \| LARGE T&R	Purchase Samples
CD4508BPWRG4	ACTIVE	-55 to 125	1.36 \| 1ku	TSSOP (PW) \| 24	View	2000 \| LARGE T&R	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

	TI Inventory Status				Reported Distributor Inventory
CD4508BE	As of 10:10 AM GMT, 04 Dec 2008				As of 10:10 AM GMT, 04 Dec 2008
	In Stock	In Progress QTY \| Date	Lead Time		Region	Company	In Stock	Purchase
	0*	>10k \| 14 Jan	6 Weeks		Americas	Arrow	257
						DigiKey	754
						Mouser Electronics	357
						Newark	556
						Rochester Electronics	>1k
					Europe	EBV Elektronik	>1k
CD4508BEE4	As of 10:10 AM GMT, 04 Dec 2008				As of 10:10 AM GMT, 04 Dec 2008
	In Stock	In Progress QTY \| Date	Lead Time		Region	Company	In Stock	Purchase
	0*	>10k \| 14 Jan	6 Weeks		None Reported View Distributors
CD4508BM	As of 10:10 AM GMT, 04 Dec 2008				As of 10:10 AM GMT, 04 Dec 2008
	In Stock	In Progress QTY \| Date	Lead Time		Region	Company	In Stock	Purchase
	0*	4875 \| 17 Dec	4 Weeks		Americas	Arrow	113
		>10k \| 29 Dec				Mouser Electronics	645
						Rochester Electronics	650
CD4508BM96	As of 10:10 AM GMT, 04 Dec 2008				As of 10:10 AM GMT, 04 Dec 2008
	In Stock	In Progress QTY \| Date	Lead Time		Region	Company	In Stock	Purchase
	0*	>10k \| 29 Dec	4 Weeks		Americas	Avnet	>1k
CD4508BM96E4	As of 10:10 AM GMT, 04 Dec 2008				As of 10:10 AM GMT, 04 Dec 2008
	In Stock	In Progress QTY \| Date	Lead Time		Region	Company	In Stock	Purchase
	0*	>10k \| 29 Dec	4 Weeks		None Reported View Distributors
CD4508BM96G4	As of 10:10 AM GMT, 04 Dec 2008				As of 10:10 AM GMT, 04 Dec 2008
	In Stock	In Progress QTY \| Date	Lead Time		Region	Company	In Stock	Purchase
	0*	>10k \| 29 Dec	4 Weeks		None Reported View Distributors
CD4508BME4	As of 10:10 AM GMT, 04 Dec 2008				As of 10:10 AM GMT, 04 Dec 2008
	In Stock	In Progress QTY \| Date	Lead Time		Region	Company	In Stock	Purchase
	0*	4875 \| 17 Dec	4 Weeks		None Reported View Distributors
	0*	>10k \| 29 Dec	4 Weeks
CD4508BMG4	As of 10:10 AM GMT, 04 Dec 2008				As of 10:10 AM GMT, 04 Dec 2008
	In Stock	In Progress QTY \| Date	Lead Time		Region	Company	In Stock	Purchase
	0*	4875 \| 17 Dec	4 Weeks		Americas	Mouser Electronics	413
	0*	>10k \| 29 Dec	4 Weeks
CD4508BNSR	As of 10:10 AM GMT, 04 Dec 2008				As of 10:10 AM GMT, 04 Dec 2008
	In Stock	In Progress QTY \| Date	Lead Time		Region	Company	In Stock	Purchase
	2000*	989 \| 12 Jan	4 Weeks		None Reported View Distributors
	2000*	>10k \| 19 Jan	4 Weeks
CD4508BNSRE4	As of 10:10 AM GMT, 04 Dec 2008				As of 10:10 AM GMT, 04 Dec 2008
	In Stock	In Progress QTY \| Date	Lead Time		Region	Company	In Stock	Purchase
	2000*	989 \| 12 Jan	4 Weeks		None Reported View Distributors
	2000*	>10k \| 19 Jan	4 Weeks
CD4508BNSRG4	As of 10:10 AM GMT, 04 Dec 2008				As of 10:10 AM GMT, 04 Dec 2008
	In Stock	In Progress QTY \| Date	Lead Time		Region	Company	In Stock	Purchase
	2000*	989 \| 12 Jan	4 Weeks		None Reported View Distributors
	2000*	>10k \| 19 Jan	4 Weeks
CD4508BPW	As of 10:10 AM GMT, 04 Dec 2008				As of 10:10 AM GMT, 04 Dec 2008
	In Stock	In Progress QTY \| Date	Lead Time		Region	Company	In Stock	Purchase
	2880*	6161 \| 9 Jan	4 Weeks		None Reported View Distributors
	2880*	>10k \| 12 Jan	4 Weeks
CD4508BPWE4	As of 10:10 AM GMT, 04 Dec 2008				As of 10:10 AM GMT, 04 Dec 2008
	In Stock	In Progress QTY \| Date	Lead Time		Region	Company	In Stock	Purchase
	2880*	6161 \| 9 Jan	4 Weeks		None Reported View Distributors
	2880*	>10k \| 12 Jan	4 Weeks
CD4508BPWG4	As of 10:10 AM GMT, 04 Dec 2008				As of 10:10 AM GMT, 04 Dec 2008
	In Stock	In Progress QTY \| Date	Lead Time		Region	Company	In Stock	Purchase
	2880*	6161 \| 9 Jan	4 Weeks		None Reported View Distributors
	2880*	>10k \| 12 Jan	4 Weeks
CD4508BPWR	As of 10:10 AM GMT, 04 Dec 2008				As of 10:10 AM GMT, 04 Dec 2008
	In Stock	In Progress QTY \| Date	Lead Time		Region	Company	In Stock	Purchase
	0*	1049 \| 5 Dec	5 Weeks		None Reported View Distributors
		6161 \| 5 Jan
		>10k \| 7 Jan
CD4508BPWRE4	As of 10:10 AM GMT, 04 Dec 2008				As of 10:10 AM GMT, 04 Dec 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	1049 \| 5 Dec	5 Weeks	None Reported View Distributors
		6161 \| 5 Jan
		>10k \| 7 Jan
CD4508BPWRG4	As of 10:10 AM GMT, 04 Dec 2008			As of 10:10 AM GMT, 04 Dec 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	1049 \| 5 Dec	5 Weeks	None Reported View Distributors
		6161 \| 5 Jan
		>10k \| 7 Jan
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
CD4508BE	Pb-Free (RoHS)	CU NIPDAU	N/A for Pkg Type	View	View
CD4508BEE4	Pb-Free (RoHS)	CU NIPDAU	N/A for Pkg Type	View	View
CD4508BM	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
CD4508BM96	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
CD4508BM96E4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
CD4508BM96G4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
CD4508BME4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
CD4508BMG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
CD4508BNSR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
CD4508BNSRE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
CD4508BNSRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
CD4508BPW	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
CD4508BPWE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
CD4508BPWG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
CD4508BPWR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
CD4508BPWRE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
CD4508BPWRG4	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

Datasheets

CD4508B TYPES (Rev. B) (cd4508b.pdf, 701 KB)
16 Jun 2003 Download

Application Notes

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
Understanding Buffered and Unbuffered CD4xxxB Series Device Characteristics (scha004.htm, 9 KB)
03 Dec 2001 Abstract

View Application Notes for Other Latches

User Guides

LOGIC Pocket Data Book (Rev. B) (scyd013b.pdf, 6001 KB)
16 Jan 2007 Download
Signal Switch Data Book (Rev. A) (scdd003a.pdf, 18396 KB)
14 Nov 2003 Download

More Literature

Logic Selection Guide 2007 (Rev. Z) (sdyu001z.pdf, 2862 KB)
24 Apr 2007 Download
Logic Cross-Reference (Rev. A) (scyb017a.pdf, 2938 KB)
07 Oct 2003 Download

Alternative Products - Are similar to CD4508B
Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Comments
CD4076B	CMOS 4-Bit D-Type Registers with Clock and 3-State Outputs	TI customers also evaluated this product.
CD4724B	CMOS 8-Bit Addressable Latch	TI customers also evaluated this product.
CD4099B	CMOS 8-Bit Addressable Latch	TI customers also evaluated this product.

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CD4508B Status: ACTIVE

CMOS Dual 4-Bit Latch

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