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參數(shù)資料
| 型號： | 74HC423PW |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 諧振器 |
| 英文描述： | Dual retriggerable monostable multivibrator with reset |
| 中文描述： | HC/UH SERIES, DUAL MONOSTABLE MULTIVIBRATOR, PDSO16 |
| 文件頁數(shù)： | 10/14頁 |
| 文件大?。?/td> | 103K |
| 代理商： | 74HC423PW |
1998 Jul 08
10
Philips Semiconductors
Product specification
Dual retriggerable monostable
multivibrator with reset
74HC/HCT423
APPLICATION INFORMATION
Power-up considerations
When the monostable is powered-up it may produce an output pulse, with a pulse width defined by the values of R
X
and
C
X
, this output pulse can be eliminated using the circuit shown in Fig.11.
Power-down considerations
A large capacitor (C
X
) 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 V
CC
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 (D
X
) preferably a germanium or Schottky-type diode able to withstand large current
surges and connect as shown in Fig.12.
Fig.11 Power-up output pulse elimination circuit.
Fig.12 Power-down protection circuit.
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| 74HC42D | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 BCD-TO-DEC. DECODER RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| 74HC42D,652 | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 BCD-TO-DEC. DECODER RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| 74HC42D,653 | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 BCD-TO-DEC. DECODER RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| 74HC42D652 | 制造商:NXP Semiconductors 功能描述:IC 1:10 BCD TO DECIMAL DECODER 16-SOIC |
| 74HC42D-T | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 BCD-TO-DEC. DECODER RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
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