Arithmetic Logic Functions | NCV1455

计时器电路

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概览

MC1455 单片计时器电路是一款稳定性很好的控制器，能够产生准确的时间延迟或振荡。如果需要，可提供附加的端子用于触发或重置。在时间延迟模式下，时间由一个外部电阻和电容器进行精确控制。要作为振荡器稳定运行，空转频率和占空比都通过两个外部电阻和一个电容器进行精确控制。该电路可在下降波形时进行触发和重置，输出结构可以提供最高 200 mA 的源/汲电流或驱动 TTL 电路。

  • Direct Replacement for NE555 Timers
  • Timing from Microseconds through Hours
  • Operates in Both Astable and Monostable Modes
  • Adjustable Duty Cycle
  • High Current Output Can Source or Sink 200 mA
  • Output Can Drive TTL
  • Temperature Stability of 0.005% per °C
  • Normally ON or Normally OFF Output
  • Pb-Free Packages are Available

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Package Type

Case Outline

MSL Type

MSL Temp (°C)

Container Type

Container Qty.

ON Target

Type

VCC Min (V)

VCC Max (V)

tpd Max (ns)

PD Max (W)

IO Max (mA)

Reference Price

NCV1455BDR2

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Obsolete

CAD Model

Pb

A

H

P

SOIC-8

751-07

1

235

REEL

2500

N

Timer

4.5

16

125

0.625

200

Price N/A

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NCV1455BDR2G

Contact Sales

Active

CAD Model

Pb

A

H

P

SOIC-8

751-07

1

260

REEL

2500

N

Timer

4.5

16

125

0.625

200

$0.2184

More Details

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