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CD54HC221的基本参数
  • 制造厂商:TI
  • 产品类别:逻辑和电压转换
  • 技术类目:专用逻辑 IC - 单稳多谐振荡器(单稳态)
  • 功能描述: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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CD54HC221的产品详情:

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.

CD54HC221的优势和特性:
  • 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
  • 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
  • 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

Data sheet acquired from Harris Semiconductor

CD54HC221的参数(英文):
  • Number of channels (#)
  • 2
  • Supply voltage (Min) (V)
  • 2
  • Supply voltage (Max) (V)
  • 6
  • Technology Family
  • HC
  • Input type
  • Standard CMOS
  • Output type
  • Push-Pull
  • ICC (uA)
  • 160
  • IOL (Max) (mA)
  • 5.2
  • IOH (Max) (mA)
  • -5.2
  • Features
  • Balanced outputs, High speed (tpd 10-50ns), Positive input clamp diode
CD54HC221具体的完整产品型号参数及价格(美元):

CD54HC221的完整型号有:5962-8780501EA、CD54HC221F、CD54HC221F3A,以下是这些产品的关键参数及官网采购报价:

5962-8780501EA,工作温度:-55 to 125,封装:CDIP (J)-16,包装数量MPQ:1个,MSL 等级/回流焊峰值温度:N/A for Pkg Type,引脚镀层/焊球材料:SNPB,TI官网5962-8780501EA的批量USD价格:27.197(1000+)

CD54HC221F,工作温度:-55 to 125,封装:CDIP (J)-16,包装数量MPQ:1个,MSL 等级/回流焊峰值温度:N/A for Pkg Type,引脚镀层/焊球材料:SNPB,TI官网CD54HC221F的批量USD价格:8.917(1000+)

CD54HC221F3A,工作温度:-55 to 125,封装:CDIP (J)-16,包装数量MPQ:1个,MSL 等级/回流焊峰值温度:N/A for Pkg Type,引脚镀层/焊球材料:SNPB,TI官网CD54HC221F3A的批量USD价格:27.197(1000+)

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CD54HC221的评估套件:

5962-8780501EA,工作温度:-55 to 125,封装:CDIP (J)-16,包装数量MPQ:1个,MSL 等级/回流焊峰值温度:N/A for Pkg Type,引脚镀层/焊球材料:SNPB,TI官网5962-8780501EA的批量USD价格:27.197(1000+)

CD54HC221F,工作温度:-55 to 125,封装:CDIP (J)-16,包装数量MPQ:1个,MSL 等级/回流焊峰值温度:N/A for Pkg Type,引脚镀层/焊球材料:SNPB,TI官网CD54HC221F的批量USD价格:8.917(1000+)

CD54HC221F3A,工作温度:-55 to 125,封装:CDIP (J)-16,包装数量MPQ:1个,MSL 等级/回流焊峰值温度:N/A for Pkg Type,引脚镀层/焊球材料:SNPB,TI官网CD54HC221F3A的批量USD价格:27.197(1000+)

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