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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VCC Min (V)

VCC Max (V)

tpd Max (ns)

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Reference Price

MC14521BDG

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Active

CAD Model

Pb

A

H

P

SOIC-16

751B-05

1

260

TUBE

48

N

Divider

3

18

4500

0.5

2.25

$0.3313

More Details

MC14521BDR2G

Contact Sales

Active

CAD Model

Pb

A

H

P

SOIC-16

751B-05

1

260

REEL

2500

N

Divider

3

18

4500

0.5

2.25

$0.2836

More Details

NLV14521BDG

Contact Sales

Obsolete

CAD Model

Pb

A

H

P

SOIC-16

751B-05

1

260

TUBE

48

N

Divider

3

18

4500

0.5

2.25

Price N/A

More Details

NLV14521BDR2G

Contact Sales

Active

CAD Model

Pb

A

H

P

SOIC-16

751B-05

1

260

REEL

2500

N

Divider

3

18

4500

0.5

2.25

$0.3131

More Details

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