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Datasheet

74F543
(Product Specification)
22-Jul-04, 12 pages, 117 kB

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74F543 - Octal registered transceiver, non-inverting (3-state)

General description
Features
Products/packages
Quality/reliability/chemical content
Pricing/ordering/availability
Samples
Discontinued information
Applications
Block diagrams/pinning
Design support
Parametrics/similar products
Print/email
Disclaimers
All information hereunder is subject to the subsequent disclaimers

General description

The 74F543 Octal Registered Transceiver contains two sets of D-type latches for temporary storage of data flowing in either direction. Separate Latch Enable (LEAB, LEBA) and Output Enable (OEAB, OEBA) inputs are provided for each register to permit independent control of inputting and outputting in either direction of data flow. The A outputs are guaranteed to sink 24 mA, while the B outputs are rated for 64 mA.

FUNCTIONAL DESCRIPTION

The 74F543 contains two sets of eight D-type latches, with separate input and controls for each set. For data flow from A to B, for example, the A-to-B Enable (EAB) input must be LOW in order to enter data from A0 - A7 or take data from B0 - B7, as indicated in the Function Table. With EAB LOW, a LOW signal on the A-to-B Latch Enable (LEAB) input makes the A-to-B latches transparent; a subsequent LOW-to-HIGH transition for the LEAB signal puts the A latches in the storage mode and their outputs no longer change with the A inputs. With EAB and OEAB both LOW, the 3-State B output buffers are active and display the data present at the outputs of the A latches. Control of data flow from B to A is similar, but using the EBA, LEBA, and OEBA inputs.

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Features

  • Combines74F245 and 74F373 type functions in one chip
  • 8-bit octal transceiver with D-type latch
  • Back-to-back registers for storage
  • Separate controls for data flow in each direction
  • A outputs sink 20 mA and source 3 mA
  • B outputs sink 64 mA and source 15 mA
  • 3-State outputs for bus-oriented applications
  • Available in SSOP Type II package

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Products/packages

Type numberOrderable part numberOrdering code (12NC)Product statusPackagePackingMarkingECCN
N74F543DN74F543D,6029338 769 20602Volume productionSOT137Tube (Signetics)Standard Marking
N74F543DN74F543D,6239338 769 20623Volume productionSOT137Reel Pack, SMD, 13" (Signetics)Standard Marking
N74F543DBN74F543DB,1129351 861 20112Volume productionSOT340-1
(SSOP24) 		TubeStandard Marking
N74F543DBN74F543DB,1189351 861 20118Volume productionSOT340-1
(SSOP24) 		Reel Pack, SMD, 13"Standard Marking

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Quality/reliability/chemical content

Type numberOrderable part numberChemical contentRoHSLeadfree Conversion dateRHFIRF (FIT)MTBF (hours)MSL
N74F543DN74F543D,602N74F543D
week 13, 2005 5,631,78E+081
N74F543DN74F543D,623N74F543D
week 13, 2005 5,631,78E+081
N74F543DBN74F543DB,112N74F543DB
week 12, 2005 5,631,78E+081
N74F543DBN74F543DB,118N74F543DB
week 12, 2005 5,631,78E+081

Quality and reliability disclaimer

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Pricing/ordering/availability

Type numberOrdering code(12NC)Orderable part numberIndicative price/unit($)RegionDistributorIn stockOrder quantityInventory dateBuy onlineSamples
N74F543D9338 769 20602  N74F543D,602  0.8400      not available
N74F543D9338 769 20623  N74F543D,623  0.8400      not available
N74F543DB9351 861 20112  N74F543DB,112  0.8400      not available
N74F543DB9351 861 20118  N74F543DB,118  0.8400      not available
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Block diagrams/pinning

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Parametrics/similar products

Type numberPackageDescriptionPropagation Delay(ns)VoltageNo. of PinsLogic Switching LevelsOutput Drive CapabilityOutput Current(A)
N74F543DSOT137
Latched Transceiver; Non-Inverting (3-State)54.5-5.5 V24TTL-15/+64 mA (B side)-3/+24 mA (A side )
N74F543DBSOT340-1
(SSOP24)		Latched Transceiver; Non-Inverting (3-State)5.54.5-5.5 V24TTL-15/+64 mA (B side)-3/+24 mA ( A side)


Similar products
74F543 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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