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參數(shù)資料
| 型號(hào)： | 933670140112 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 諧振器 |
| 英文描述： | HCT SERIES, DUAL MONOSTABLE MULTIVIBRATOR, PDIP16 |
| 封裝： | SOT-38-1, DIP-16 |
| 文件頁(yè)數(shù)： | 7/19頁(yè) |
| 文件大?。?/td> | 332K |
| 代理商： | 933670140112 |
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December 1990
15
Philips Semiconductors
Product specication
Dual non-retriggerable monostable
multivibrator with reset
74HC/HCT221
Fig.15 Typical output pulse width as a function of
temperature; CX = 0.1 F; RX =10K;
VCC =5V.
Fig.16 k factor as a function of supply voltage;
RX =10K;Tamb =25 °C.
Power-down consideration
A large capacitor (CX) may cause problems when
powering-down the monostable due to the energy stored
in this capacitor. When a system containing this device is
powered-down or a rapid decrease of VCC to zero occurs,
the monostable may substain damage, due to the
capacitor discharging through the input protection diodes.
To avoid this possibility, use a damping diode (DX)
preferably a germanium or Schottky type diode able to
withstand large current surges and connect as shown in
Fig.17.
Fig.17 Power-down protection circuit.
PACKAGE OUTLINES
See
“74HC/HCT/HCU/HCMOS Logic Package Outlines”.
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| 9336CMG | 制造商:Apex Tool Group 功能描述:6 IN. DIAGONAL CUTTING S J PLIERS W/CO-MOLDED GRIPS, LASER HARDENED EDGES, CDD |
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| 9336N | 制造商:Apex Tool Group 功能描述:6 IN. DIAGONAL CUTTING, GENERAL PURPOSE SOLID JOINT PLIERS |
| 9336-RED | 制造商: 功能描述: 制造商:undefined 功能描述: |
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