Arithmetic Logic Functions | MC14518B

双 BCD 正数计数器

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MC14518B 双 BCD 计数器和 MC14520B 双二进制计数器在一个单片结构中使用 MOS P 沟道和 N 沟道增强模式器件构造。每个均由两个相同的、独立的内部同步 4 级计数器组成。这些计数器级为 D 型触发器，带有可互换时钟和启用线路，用于在级联多级的情况下，根据需要在正向或负向转换时进行递增。每个计数器均通过在重置线路上应用高电平进行清除。另外，MC14518B 将在两个时钟段内计算所有未定义状态。这些互补 MOS 正数计数器主要用于需要低功耗和/或高抗扰性的多级同步或波纹计数应用。

  • Diode Protection on All Inputs
  • Supply Voltage Range = 3.0 Vdc to 18 Vdc
  • Internally Synchronous for High Internal and External Speeds
  • Logic Edge-Clocked Design Incremented on Positive Transition of Clock or Negative Transition on Enable
  • Capable of Driving Two Low-power TTL Loads or One Low-power Schottky TTL Load Over the Rated Temperature Range

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Reference Price

MC14518BDWG

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CAD Model

Pb

A

H

P

SOIC-16W

751G-03

3

260

TUBE

47

N

Counter

3

18

230

0.5

2.25

$0.416

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MC14518BDWR2G

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CAD Model

Pb

A

H

P

SOIC-16W

751G-03

3

260

REEL

1000

N

Counter

3

18

230

0.5

2.25

$0.416

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NLV14518BDWR2G

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CAD Model

Pb

A

H

P

SOIC-16W

751G-03

3

260

REEL

1000

N

Counter

3

18

230

0.5

2.25

$0.3965

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可靠性数据

Die Related Summary Data

Device: NLV14518BDWR2G

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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