74HCT259PW

8-bit addressable latch

The 74HC259; 74HCT259 is an 8-bit addressable latch. The device features four modes of operation. In the addressable latch mode, data on the D input is written into the latch addressed by the inputs A0 to A3. The addressed latch will follow the data input, non-addressed latches will retain their previous states. In memory mode, all latches retain their previous states and are unaffected by the data or address inputs. In the 3-to-8 decoding or demultiplexing mode, the addressed output follows the D input and all other outputs are LOW. In the reset mode, all outputs are forced LOW and unaffected by the data or address inputs. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of V_CC.

Alternatives

74HCT259PW-Q100

Automotive qualified

8-bit addressable latch

Buy from Nexperia

SKU	Stock*	MOQ	Price per unit**	Quantity

Buy from distributors

Seller	SKU	Stock	MOQ		1	10	100	1,000	10,000	Purchase

Seller	SKU	Stock	MOQ		1	10	100	1,000	10,000	Purchase

Seller	SKU	Stock	MOQ		1	10	100	1,000	10,000	Purchase

Seller	SKU	Stock	MOQ		1	10	100	1,000	10,000	Purchase

* Stock values are subject to change
** Displayed price per unit is based on small quantity orders
*** Authorized resellers for overstock, mature, and discontinued products which are warranted for reliability by the reseller, no longer by Nexperia

Features and benefits

Wide supply voltage range from 2.0 V to 6.0 V
Latch-up performance exceeds 100 mA per JESD 78 Class II Level B
Complies with JEDEC standards:
- JESD8C (2.7 V to 3.6 V)
- JESD7A (2.0 V to 6.0 V)
Combined demultiplexer and 8-bit latch
Serial-to-parallel capability
Output from each storage bit available
Random (addressable) data entry
Easily expandable
Common reset input
Useful as a 3-to-8 active HIGH decoder
Input levels:
- For 74HC259: CMOS level
- For 74HCT259: TTL level
ESD protection:
- HBM JESD22-A114F exceeds 2000 V
- MM JESD22-A115-A exceeds 200 V
- CDM JESD22E exceeds 1000 V
Multiple package options
Specified from -40 °C to +85 °C and from -40 °C to +125 °C

Applications

Parametrics

Type number	Product status	V_CC (V)	Logic switching levels	Output drive capability (mA)	t_pd (ns)	No of bits	Power dissipation considerations	T_amb (°C)	R_th(j-a) (K/W)	Ψ_th(j-top) (K/W)	R_th(j-c) (K/W)	Package name
74HCT259PW	Production	4.5 - 5.5	TTL	± 4	20	8	low	-40~125	121	3.6	49.9	TSSOP16

Package

Type number	Orderable part number, (Ordering code (12NC))	Status	Marking	Package	Package information	Reflow-/Wave soldering	Packing
74HCT259PW	74HCT259PW,118 ( 9351 884 10118 )	Active	HCT259	TSSOP16 (SOT403-1)	SOT403-1	SSOP-TSSOP-VSO-WAVE	Reel 13" Q1/T1

The variants in the table below are discontinued. See the table Discontinuation information for more information.

Type number	Orderable part number, (Ordering code (12NC))	Status	Marking	Package	Package information	Reflow-/Wave soldering	Packing
74HCT259PW	74HCT259PW,112 ( 9351 884 10112 )	Discontinued / End-of-life	HCT259	TSSOP16 (SOT403-1)	SOT403-1	SSOP-TSSOP-VSO-WAVE	Bulk Pack

Discontinuation information

Type number	Orderable part number	Ordering code	Last time buy date	Last time delivery date	Replacement product	Status	Comments
74HCT259PW	74HCT259PW,112	935188410112

Quality, reliability & chemical content

Type number	Orderable part number	Chemical content	RoHS / RHF	EFR	IFR	MTBF (hour)	MSL	MSL leadfree
74HCT259PW	74HCT259PW,118	74HCT259PW		29.9	0.9	1.11E9	1	1

The variants in the table below are discontinued. See the table Discontinuation information for more information.

Type number	Orderable part number	Chemical content	RoHS / RHF	EFR	IFR	MTBF (hour)	MSL	MSL leadfree
74HCT259PW	74HCT259PW,112	74HCT259PW		29.9	0.9	1.11E9	1	1

Quality and reliability disclaimer

Series

74HC259; 74HCT259 - 8-bit addressable latch

Documentation (4)

File name	Title	Type	Date
74HC_HCT259	8-bit addressable latch	Data sheet	2020-09-02
AN11044	Pin FMEA 74HC/74HCT family	Application note	2019-01-09
HCT_USER_GUIDE	HC/T User Guide	User manual	1997-10-31
SSOP-TSSOP-VSO-WAVE	Footprint for wave soldering	Wave soldering	2009-10-08

Support

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Ordering, pricing & availability

Type number	Orderable part number	Ordering code (12NC)	Packing	Buy online
74HCT259PW	74HCT259PW,118	935188410118	Reel 13" Q1/T1	Order product

Sample

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Sample orders normally take 2-4 days for delivery.

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