74ALVT16821DL: 20-bit bus interface D-type flip-flop; positive-edge trigger; 3-state

The 74ALVT16821 high-performance Bipolar Complementary Metal Oxide Semiconductor (BiCMOS) device combines low static and dynamic power dissipation with high speed and high output drive. It is designed for VCC operation at 2.5 V or 3.3 V with I/O compatibility to 5 V.

The 74ALVT16821 has two 10-bit, edge triggered registers, with each register coupled to a 3-state output buffer. The two sections of each register are controlled independently by the clock (nCP) and output enable (nOE) control gates.

Each register is fully edge triggered. The state of each D input, one set-up time before the LOW-to-HIGH clock transition, is transferred to the corresponding flip-flops Q output.

The 3-state output buffers are designed to drive heavily loaded 3-state buses, MOS memories, or MOS microprocessors.

The active low output enable (nOE) controls all ten 3-state buffers independent of the register operation. When nOE is LOW, the data in the register appears at the outputs. When nOE is HIGH, the outputs are in high-impedance OFF-state, which means they will neither drive nor load the bus.

74ALVT16821DL: Product Block Diagram

74ALVT16821DL: Block Diagram

Outline 3d SOT371-1

Data Sheets (1)

Name/Description	Modified Date
20-bit bus interface D-type flip-flop; positive-edge trigger; 3-state (REV 3.0) PDF (106.0 kB) 74ALVT16821 [English]	13 Jun 2005

Application Notes (8)

Name/Description	Modified Date
Sorting through the low voltage logic maze (REV 1.0) PDF (72.0 kB) AN10156 [English]	13 Mar 2013
Package lead inductance considerations in high-speed applications (REV 1.0) PDF (43.0 kB) AN212 [English]	13 Mar 2013
Ground and VCC Bounce of High-Speed Integrated Circuits (REV 1.0) PDF (25.0 kB) AN223 [English]	13 Mar 2013
Live Insertion Aspects of Philips Logic Families (REV 1.0) PDF (73.0 kB) AN252 [English]	13 Mar 2013
Test Fixtures for High Speed Logic (REV 1.0) PDF (341.0 kB) AN203 [English]	02 Apr 1998
Transmission Lines and Terminations with Philips Advanced Logic Families (REV 1.0) PDF (217.0 kB) AN246 [English]	01 Feb 1998
LVT (Low Voltage Technology) and ALVT (Advanced LVT) (REV 1.0) PDF (133.0 kB) AN243 [English]	01 Jan 1998
Interfacing 3 Volt and 5 Volt Applications (REV 1.0) PDF (63.0 kB) AN240 [English]	15 Sep 1995

Brochures (2)

Name/Description	Modified Date
電圧レベルシフタ (REV 1.1) PDF (3.1 MB) 75017511_JP [English]	16 Feb 2015
Voltage translation: How to manage mixed-voltage designs with NXP® level translators (REV 1.0) PDF (2.6 MB) 75017511 [English]	20 May 2014

Selector Guides (2)

Name/Description	Modified Date
ロジック製品セレクションガイド... (REV 1.0) PDF (38.3 MB) LOGIC_SELECTION_GUIDE_2015_JP [English]	19 Nov 2015
Logic selection guide 2016 (REV 1.1) PDF (15.3 MB) 75017285 [English]	08 Jan 2015

Package Information (1)

Name/Description	Modified Date
plastic shrink small outline package; 56 leads; body width 7.5 mm (REV 1.0) PDF (530.0 kB) SOT371-1 [English]	08 Feb 2016

Supporting Information (2)

Name/Description	Modified Date
Footprint for reflow soldering (REV 1.0) PDF (16.0 kB) SSOP-TSSOP-VSO-REFLOW [English]	08 Oct 2009
Footprint for wave soldering (REV 1.0) PDF (16.0 kB) SSOP-TSSOP-VSO-WAVE [English]	08 Oct 2009

IBIS Model

alvt16821 IBIS model (REV 1.0) ibs ALVT16821 4/7/2013

SPICE model

alvt16 Spice model (REV 1.0) ZIP ALVT16 5/7/2013

Ordering Information

Product	Status	Family	Function	V_CC (V)	Logic switching levels	Description	Output drive capability (mA)	Package version	t_pd (ns)	f_max (MHz)	Power dissipation considerations	T_amb (Cel)	R_th(j-a) (K/W)	Ψ_th(j-top) (K/W)	R_th(j-c) (K/W)	Package name	No of pins
74ALVT16821DL	Active	ALVT	D-type flip-flops	2.3 - 3.6	TTL	positive-edge trigger (3-state)	-32/+64	SOT371-1	1.8	150	medium	-40~85	84	24.0		SSOP56	56

Package Information

Product ID	Outline Version	Reflow/Wave Soldering	Packing	Product Status	Part NumberOrdering code(12NC)	Marking	Chemical Content	LeadFree Conversion Date	EFR	IFR(FIT)	MTBF(hour)	MSL	MSL LF
74ALVT16821DL	SOT371-1	SSOP-TSSOP-VSO-REFLOW SSOP-TSSOP-VSO-WAVE SSOP-TSSOP-VSO-REFLOW SSOP-TSSOP-VSO-WAVE	Tube in Drypack	Active	74ALVT16821DL,512 (9352 100 00512)	ALVT16821	74ALVT16821DL	week 13, 2005	70.8	1.33	7.52E8	1	2
			Reel 13" Q1/T1 in Drypack	Active	74ALVT16821DL,518 (9352 100 00518)	ALVT16821	74ALVT16821DL	week 13, 2005	70.8	1.33	7.52E8	1	2
			Bulk Pack	Withdrawn	74ALVT16821DL,112 (9352 100 00112)	ALVT16821	74ALVT16821DL		70.8	1.33	7.52E8	1	NA
			Reel 13" Q1/T1	Withdrawn	74ALVT16821DL,118 (9352 100 00118)	ALVT16821	74ALVT16821DL		70.8	1.33	7.52E8	1	NA