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更新日期:2024-04-01

产品简介:具有复位功能的高速 CMOS 逻辑双路单稳态多谐振荡器

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CD54HC221F3A 供应商

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CD54HC221F3A 中文资料属性参数

  • 现有数量:0现货10,001Factory
  • 价格:在售
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  • 包装:管件
  • 产品状态:在售
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产品特性

  • Overriding RESET Terminates Output Pulse
  • Triggering from the Leading or Trailing Edge
  • Q and Q\ Buffered Outputs
  • Separate Resets
  • Wide Range of Output-Pulse Widths
  • Schmitt Trigger on B Inputs
  • Fanout (Over Temperature Range) Standard Outputs . . . . 10 LSTTL Loads Bus Driver Outputs . . . . 15 LSTTL Loads
  • Standard Outputs . . . . 10 LSTTL Loads
  • Bus Driver Outputs . . . . 15 LSTTL Loads
  • Wide Operating Temperature Range . . . –55°C to 125°C
  • Balanced Propagation Delay and Transition Times
  • Significant Power Reduction Compared to LSTTL Logic ICs
  • HC Types 2V to 6V Operation High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V
  • 2V to 6V Operation
  • High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V
  • HCT Types 4.5V to 5.5V Operation Direct LSTTL Input Logic Compatibility, VIL = 0.8V (Max), VIH = 2V (Min) CMOS Input Compatibility, Il 1µA at VOL, VOH
  • 4.5V to 5.5V Operation
  • Direct LSTTL Input Logic Compatibility, VIL = 0.8V (Max), VIH = 2V (Min)
  • CMOS Input Compatibility, Il 1µA at VOL, VOH

产品概述

The ’HC221 and CD74HCT221 are dual monostable multivibrators with reset. An external resistor (RX) and an external capacitor (CX) control the timing and the accuracy for the circuit. Adjustment of RX and CX provides a wide range of output pulse widths from the Q and Q\ terminals. Pulse triggering on the B input occurs at a particular voltage level and is not related to the rise and fall time of the trigger pulse.Once triggered, the outputs are independent of further trigger inputs on A\ and B. The output pulse can be terminated by a LOW level on the Reset (R)\ pin. Trailing Edge triggering (A)\ and leading-edge-triggering (B) inputs are provided for triggering from either edge of the input pulse. On power up, the IC is reset. If either Mono is not used each input (on the unused device) must be terminated either high or low.The minimum value of external resistance, RX, is typically 500. The minimum value of external capacitance, CX, is 0pF. The calculation for the pulse width is tW = 0.7 RXCX at VCC = 4.5V.

CD54HC221F3A 数据手册

数据手册 说明 数量 操作
CD54HC221F3A

High-Speed CMOS Logic Dual Monostable Multivibrator with Reset

18页,379K 查看

IC 索引: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0 1 2 3 4 5 6 7 8 9