Arithmetic Logic Functions | MC14521B

24 级分频器

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概览

MC14521B 包括一个由 24 个触发器组成的链条和支持三种运行模式的输入电路。输入将作为一个晶体振荡器、一个 RC 振荡器，或作为一个外部振荡器的输入缓冲器。每一个触发器将前一个触发器的频率除以 2，因此该零部件的计数高达：224 = 16,777,216。计数在时钟的下降沿递增。最后 7 级的输出可提供更大的灵活性。

  • All Stages are Resettable
  • Reset Disables the RC Oscillator for Low Standby Power Drain
  • RC and Crystal Oscillator Outputs Are Capable of Driving External Loads
  • Test Mode to Reduce Test Time
  • VDD' and VSS' Pins Brought Out on Crystal Oscillator Inverter to Allow the Connection of External Resistors for Low-Power Operation
  • Supply Voltage Range = 3.0 Vdc to 18 Vdc
  • Capable of Driving Two Low-power TTL Loads or One Low-power Schottky TTL Load over the Rated Temperature Range.
  • Pb-Free Packages are Available

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MC14521BDG

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Pb

A

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SOIC-16

751B-05

1

260

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48

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3

18

4500

0.5

2.25

$0.3313

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MC14521BDR2G

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Pb

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SOIC-16

751B-05

1

260

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2500

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3

18

4500

0.5

2.25

$0.2836

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NLV14521BDG

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Pb

A

H

P

SOIC-16

751B-05

1

260

TUBE

48

N

Divider

3

18

4500

0.5

2.25

Price N/A

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NLV14521BDR2G

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Pb

A

H

P

SOIC-16

751B-05

1

260

REEL

2500

N

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3

18

4500

0.5

2.25

$0.3131

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可靠性数据

Die Related Summary Data

Device: MC14521BDG

Equivalent to wafer fab process: CMOS STD

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等效器件小时

平均故障间隔时间/平均无故障时间（按小时计算）

FITS

CMOS STD

3

3597164517

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Re-calculate Data

Data is based on the following assumptions.

Note: The temperature and confidence level may be adjusted to your requirements.

Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)

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