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74ALVT162821: 2.5 V / 3.3 V 20-bit bus-interface D-type flip-flop, positive-edge trigger with 30 Ohm termination resistors (3-State) (Based on PIP 74ALVT162821)

The 74ALVT162821 high-performance BiCMOS device combines low static and dynamic power dissipation with high speed and high output drive. It is designed for VCC operation at 2.5V or 3.3V with I/O compatibility to 5V.

The 74ALVT162821 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-flop's 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 Highthe outputs are in high impedance "off" state, which means they will neither drive nor load the bus.

The 74ALVT162821 is designed with 30 Ω series resistance in both High and Low output stages. This design reduces the line noise in applications such as memory address drivers, clock drivers and bus receivers/transmitters. The series termination resistors reduce overshoot and undershoot and are ideal for driving memory arrays.

74ALVT162821: Product Block Diagram

Outline 3d SOT371-1

Data Sheets (1)

Application Notes (8)

Brochures (2)

Selector Guides (2)

Package Information (2)

Packing (1)

Supporting Information (2)

IBIS Model

• alvt162821 IBIS model (REV 1.0) ibs ALVT162821 4/7/2013

SPICE model

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

Ordering Information

Package Information

Product ID	Package Description	Outline Version	Reflow/Wave Soldering	Packing	Product Status	Part NumberOrdering code(12NC)	Marking	Chemical Content	RoHS / Pb Free / RHF	LeadFree Conversion Date	EFR	IFR(FIT)	MTBF(hour)	MSL	MSL LF
74ALVT162821DGG		SOT364-1	SSOP-TSSOP-VSO-WAVE	Tube in Drypack	Active	74ALVT162821DGGS (9352 554 60512)	ALVT162821	74ALVT162821DGG		Always Pb-free	70.8	1.33	7.52E8	2	2
				Reel 13" Q1/T1 in Drypack	Active	74ALVT162821DGGY (9352 554 60518)	ALVT162821	74ALVT162821DGG		Always Pb-free	70.8	1.33	7.52E8	2	2
74ALVT162821DL		SOT371-1	SSOP-TSSOP-VSO-REFLOW SSOP-TSSOP-VSO-WAVE SSOP-TSSOP-VSO-REFLOW SSOP-TSSOP-VSO-WAVE	Tube in Drypack	Active	74ALVT162821DL,512 (9352 554 50512)	ALVT162821	74ALVT162821DL		week 13, 2005	70.8	1.33	7.52E8	1	2
				Reel 13" Q1/T1 in Drypack	Active	74ALVT162821DL,518 (9352 554 50518)	ALVT162821	74ALVT162821DL		week 13, 2005	70.8	1.33	7.52E8	1	2
				Reel 13" Q1/T1	Withdrawn	74ALVT162821DL,118 (9352 554 50118)	ALVT162821	74ALVT162821DL			70.8	1.33	7.52E8	1	NA