74ALVCH16843DGG

18-bit bus-interface D-type latch; 3-state

The 74ALVCH16843 has two 9-bit D-type latch featuring separate D-type inputs for each latch and 3-State outputs for bus oriented applications. The two sections of each register are controlled independently by the latch enable (nLE) clear (nCLR) preset (nPRE) and output enable (nOE) control gates.

When nOE is LOW, the data in the registers appear at the outputs. When nOE is HIGH, the outputs are in the high impedance OFF state. Operation of the nOE input does not affect the state of the flip-flops.

The 74ALVCH16843 has active bus hold circuitry which is provided to hold unused or floating data inputs at a valid logic level. This feature eliminates the need for external pull-up or pull-down resistors.

18-bit bus-interface D-type latch; 3-state

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

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** 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 of 1.2 V to 3.6 V
Complies with JEDEC standard no. 8-1A.
CMOS low power consumption
Direct interface with TTL levels
Current drive ±24 mA at 3.0 V
MULTIBYTE™ flow-through standard pin-out architecture
Low inductance multiple V_CC and GND pins for minimum noise and ground bounce
All data inputs have bus hold
Output drive capability 50 Ω transmission lines @ 85 °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)	Package name
74ALVCH16843DGG	Production	2.3 - 3.6	LVTTL	± 24	2.1	18	low	-40~85	93	21.0	TSSOP56

Package

Type number	Orderable part number, (Ordering code (12NC))	Status	Marking	Package	Package information	Reflow-/Wave soldering	Packing
74ALVCH16843DGG	74ALVCH16843DGGY ( 9352 591 10518 )	Active	ALVCH16843	TSSOP56 (SOT364-1)	SOT364-1	SSOP-TSSOP-VSO-WAVE	Reel 13" Q1/T1 in Drypack

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
74ALVCH16843DGG	74ALVCH16843DGGS ( 9352 591 10512 )	Discontinued / End-of-life	ALVCH16843	TSSOP56 (SOT364-1)	SOT364-1	SSOP-TSSOP-VSO-WAVE	Tube in Drypack

Discontinuation information

Type number	Orderable part number	Ordering code	Last time buy date	Last time delivery date	Replacement product	Status	Comments
74ALVCH16843DGG	74ALVCH16843DGGS	935259110512

Quality, reliability & chemical content

Type number	Orderable part number	Chemical content	RoHS / RHF	EFR	IFR	MTBF (hour)	MSL	MSL leadfree
74ALVCH16843DGG	74ALVCH16843DGGY	74ALVCH16843DGG		50.4	0.8	1.25E9	2	2

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
74ALVCH16843DGG	74ALVCH16843DGGS	74ALVCH16843DGG		50.4	0.8	1.25E9	2	2

Quality and reliability disclaimer

Series

74ALVCH16843 - 18-bit bus-interface D-type latch; 3-state

Documentation (3)

File name	Title	Type	Date
74ALVCH16843	18-bit bus-interface D-type latch; 3-state	Data sheet	2017-11-21
alvch16843	alvch16843 IBIS model	IBIS model	2013-04-07
SSOP-TSSOP-VSO-WAVE	Footprint for wave soldering	Wave soldering	2009-10-08

Support

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Models

File name	Title	Type	Date
alvch16843	alvch16843 IBIS model	IBIS model	2013-04-07

Ordering, pricing & availability

Type number	Orderable part number	Ordering code (12NC)	Packing	Buy online
74ALVCH16843DGG	74ALVCH16843DGGY	935259110518	Reel 13" Q1/T1 in Drypack	Order product

Sample

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