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74ABT16821A, 74ABTH16821A

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Datasheet

74ABT16821A, 74ABTH16821A
(Product Specification)
13-Dec-02, 11 pages, 100 kB

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General description

The 74ABT16821A high-performance BiCMOS device combines low static and dynamic power dissipation with high speed and high output drive.

The 74ABT16821A 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 HIGH, the outputs are in high impedance ?off? state, which means they will neither drive nor load the bus.

Two options are available, 74ABT16821A which does not have the bus-hold feature and 74ABTH16821A which incorporates the bus-hold feature.

Features

  • 20-bit positive-edge triggered register
  • Multiple VCC and GND pins minimize switching noise
  • Live insertion/extraction permitted
  • Power-up reset
  • Power-up 3-State
  • 74ABTH16821A incorporates bus-hold data inputs which eliminate the need for external pull-up resistors to hold unused inputs
  • Output capability: +64 mA / ?32 mA
  • Latch-up protection exceeds 500mA per JEDEC Std 17
  • ESD protection exceeds 2000V per MIL STD 883 Method 3015 and 200V per Machine Model

Products/packages

Type numberNorth American Type numberOrdering code (12NC)Product statusPackagePackingMarkingChemical contentLeadfree conversion date
74ABT16821ADGG74ABT16821ADG9352 032 50112Volume productionSOT364-1
(TSSOP56)
TubeStandard Marking74ABT16821ADGG
week 2, 2006
74ABT16821ADGG74ABT16821ADG-T9352 032 50118Volume productionSOT364-1
(TSSOP56)
Reel Pack, SMD, 13"Standard Marking74ABT16821ADGG
week 2, 2006
74ABT16821ADL74ABT16821ADL9351 967 60512Volume productionSOT371-1
(SSOP56)
Tube Dry PackStandard Marking74ABT16821ADL
week 13, 2005
74ABT16821ADL74ABT16821ADL-T9351 967 60518Volume productionSOT371-1
(SSOP56)
Reel Dry Pack, SMD, 13"Standard Marking74ABT16821ADL
week 13, 2005

Pricing/ordering/availability

Type numberOrdering code(12NC)Indicative price/unit($)RegionDistributorIn stockInventory dateBuy onlineSamples
74ABT16821ADGG9352 032  50112  1.9200     not available
74ABT16821ADGG9352 032  50118  1.9200      Order samples
74ABT16821ADL9351 967  60512  1.9200     not available
74ABT16821ADL9351 967  60518  1.9200      Order samples

Applications

Block diagrams/pinning

Parametrics/similar products

Type numberPackageDescriptionFmax(MHz)Propagation Delay(ns)VoltageNo. of PinsLogic Switching LevelsOutput Drive Capability
74ABT16821ADGGSOT364-1
(TSSOP56)
20-Bit D-Type Flip-Flop; Positive-Edge Trigger (3-State)2502.44.5-5.5 V56TTL-32/+64 mA
74ABT16821ADLSOT371-1
(SSOP56)
20-Bit D-Type Flip-Flop; Positive-Edge Trigger (3-State)2502.44.5-5.5 V56TTL-32/+64 mA

Similar products

74ABT16821A, 74ABTH16821A links to the similar products page containing an overview of products that are similar in function or related to the type number(s) as listed on this page. The similar products page includes products from the same catalog tree(s), relevant selection guides and products from the same functional category.

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