74ALVCH16843DGG PCB Symbol, Footprint & ECAD Model

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.

Orderable parts

Type number	Orderable part number	Ordering code (12NC)	Package	Buy from distributors
74ALVCH16843DGG	74ALVCH16843DGGS	935259110512	SOT364-1	Order product
74ALVCH16843DGG	74ALVCH16843DGGY	935259110518	SOT364-1	Order product
74ALVCH16843DGG	74ALVCH16843DGG:11	935259110112	SOT364-1	Order product
74ALVCH16843DGG	74ALVCH16843DGG,11	935259110118	SOT364-1	Order product

18-bit bus-interface D-type latch (3-State)

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

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

Target 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	Outline version	Reflow-/Wave soldering	Packing
74ALVCH16843DGG	74ALVCH16843DGGS ( 9352 591 10512 )	Active	ALVCH16843	TSSOP56 (SOT364-1)	SOT364-1	SSOP-TSSOP-VSO-WAVE	Tube in Drypack
74ALVCH16843DGG	74ALVCH16843DGGY ( 9352 591 10518 )	Active	ALVCH16843	TSSOP56 (SOT364-1)	SOT364-1	SSOP-TSSOP-VSO-WAVE	Reel 13" Q1/T1 in Drypack

Quality, reliability & chemical content

Type number	Orderable part number	Chemical content	RoHS / RHF	EFR	IFR	MTBF (hour)	MSL	MSL leadfree
74ALVCH16843DGG	74ALVCH16843DGGS	74ALVCH16843DGG		123.8	3.87	2.58E8	2	2
74ALVCH16843DGG	74ALVCH16843DGGY	74ALVCH16843DGG		123.8	3.87	2.58E8	2	2

Quality and reliability disclaimer

Series

74ALVCH16843 - 18-bit bus-interface D-type latch (3-State)

Documentation (5)

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
SOT364-1_118	TSSOP56; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118	Packing	2013-04-15
SOT364-1	plastic, thin shrink small outline package; 56 leads; 0.5 mm pitch; 14 mm x 6.1 mm x 1.2 mm body	Outline drawing	2018-10-18

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	74ALVCH16843DGGS	935259110512	Tube in Drypack	Order product
74ALVCH16843DGG	74ALVCH16843DGGY	935259110518	Reel 13" Q1/T1 in Drypack	Order product
74ALVCH16843DGG	74ALVCH16843DGG:11	935259110112	Bulk Pack	Order product
74ALVCH16843DGG	74ALVCH16843DGG,11	935259110118	Reel 13" Q1/T1	Order product

Sample

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