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Datasheet

74LVC163
(Product Specification)
05-May-04, 21 pages, 137 kB

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General description

The 74LVC163 is a high-performance, low-power, low-voltage, Si-gate CMOS device and superior to most advanced CMOS compatible TTL families.

The 74LVC163 is a synchronous presettable binary counter which features an internal look-head carry and can be used for high-speed counting. Synchronous operation is provided by having all flip-flops clocked simultaneously on the positive-going edge of the clock (pin CP). The outputs (pins Q0 to Q3) of the counters may be preset to a HIGH-level or LOW-level. A LOW-level at the parallel enable input (pin PE) disables the counting action and causes the data at the data inputs (pins D0 to D3) to be loaded into the counter on the positive-going edge of the clock (provided that the set-up and hold time requirements for PE are met). Preset takes place regardless of the levels at count enable inputs (pins CEP and CET). A LOW-level at the master reset input (pin MR) sets all four outputs of the flip-flops (pins Q0 to Q3) to LOW-level after the next positive-going transition on the clock input (pin CP) (provided that the set-up and hold time requirements for PE are met). This action occurs regardless of the levels at input pins PE, CET and CEP. This synchronous reset feature enables the designer to modify the maximum count with only one external NAND gate.

The look-ahead carry simplifies serial cascading of the counters. Both count enable inputs (pins CEP and CET) must be HIGH to count. The CET input is fed forward to enable the terminal count output (pin TC). The TC output thus enabled will produce a HIGH output pulse of a duration approximately equal to a HIGH-level output of Q0. This pulse can be used to enable the next cascaded stage.

The maximum clock frequency for the cascaded counters is determined by tPHL (propagation delay CP to TC) and tsu (set-up time CEP to CP) according to the formula: f max = 1/(tPHL(max) + tsu)

Features

  • Wide supply voltage range from 1.2 V to 3.6 V
  • Complies with JEDEC standard JESD8-B/JESD36
  • Inputs accept voltages up to 5.5 V
  • CMOS low power consumption
  • Direct interface with TTL levels
  • Synchronous reset
  • Synchronous counting and loading
  • Two count enable inputs for n-bit cascading
  • Positive edge-triggered clock.
  • ESD protection:
    • HBM EIA/JESD22-A114-B exceeds 2000 V
    • MM EIA/JESD22-A115-A exceeds 200 V.
  • Specified from -40 Cel to +85 Cel and -40 Cel to +125 Cel.

Products/packages

Type numberNorth American Type numberOrdering code (12NC)Product statusPackagePackingMarkingChemical contentLeadfree conversion date
74LVC163BQ74LVC163BQ-G9352 756 15115Volume productionSOT763-1
(DHVQFN16)
Reel Pack, SMD, 7"Standard Marking74LVC163BQ
Always Pb-free
74LVC163D74LVC163D9352 105 40112Volume productionSOT109-1
(SO16)
TubeStandard Marking74LVC163D
74LVC163D74LVC163D-T9352 105 40118Volume productionSOT109-1
(SO16)
Reel Pack, SMD, 13"Standard Marking74LVC163D
74LVC163DB74LVC163DB9352 105 50112Volume productionSOT338-1
(SSOP16)
TubeStandard Marking74LVC163DB
week 12, 2005
74LVC163DB74LVC163DB-T9352 105 50118Volume productionSOT338-1
(SSOP16)
Reel Pack, SMD, 13"Standard Marking74LVC163DB
week 12, 2005
74LVC163PW74LVC163PW9352 105 60112Volume productionSOT403-1
(TSSOP16)
TubeStandard Marking74LVC163PW
week 10, 2005
74LVC163PW74LVC163PW-T9352 105 60118Volume productionSOT403-1
(TSSOP16)
Reel Pack, SMD, 13"Standard Marking74LVC163PW
week 10, 2005

Pricing/ordering/availability

Type numberOrdering code(12NC)Indicative price/unit($)RegionDistributorIn stockInventory dateBuy onlineSamples
74LVC163BQ9352 756  15115  0.3200      Order samples
74LVC163D9352 105  40112  0.3300     not available
74LVC163D9352 105  40118  0.3300      Order samples
74LVC163DB9352 105  50112  0.3300NAAVNET ELECTRONICS MARKETING2,18411/21/2008 Buy online Order samples
74LVC163DB9352 105  50118  0.3300     not available
74LVC163PW9352 105  60112  0.3300NAAVNET ELECTRONICS MARKETING1,73511/21/2008 Buy online not available
74LVC163PW9352 105  60118  0.3300NADIGI-KEY CORPORATION5,00011/21/2008 Buy online Order samples
   NADIGI-KEY CORPORATION6,94311/21/2008 Buy online  
   NAMOUSER ELECTRONICS2,47211/21/2008 Buy online  

Block diagrams/pinning

Parametrics/similar products

Type numberPackageDescriptionPropagation Delay(ns)VoltageNo. of PinsPower Dissipation ConsiderationsLogic Switching LevelsOutput Drive Capability
74LVC163BQSOT763-1
(DHVQFN16)
3.3V Presettable Synchronous 4-Bit Binary Counter; Synchronous Reset4.9 @ 3.3V1.2-3.616Low Power or Battery ApplicationsTTL+/- 24 mA
74LVC163DSOT109-1
(SO16)
3.3V Presettable Synchronous 4-Bit Binary Counter; Synchronous Reset4.9 @ 3.3V1.2-3.616Low Power or Battery ApplicationsTTL+/- 24 mA
74LVC163DBSOT338-1
(SSOP16)
3.3V Presettable Synchronous 4-Bit Binary Counter; Synchronous Reset4.9 @ 3.3V1.2-3.616Low Power or Battery ApplicationsTTL+/- 24 mA
74LVC163PWSOT403-1
(TSSOP16)
3.3V Presettable Synchronous 4-Bit Binary Counter; Synchronous Reset4.9 @ 3.3V1.2-3.616Low Power or Battery ApplicationsTTL+/- 24 mA

Similar products

74LVC163 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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