參數(shù)資料
型號： 74HCT221
廠商： NXP Semiconductors N.V.
英文描述： Dual non-retriggerable monostable multivibrator with reset(帶復位的雙路不可再觸發(fā)單穩(wěn)態(tài)多諧振蕩器)
中文描述： 雙非retriggerable單穩(wěn)態(tài)觸發(fā)器的復位（帶復位的雙路不可再觸發(fā)單穩(wěn)態(tài)多諧振蕩器）
文件頁數(shù)： 15/15頁
文件大?。?/td> 250K
代理商： 74HCT221
December 1990
15
Philips Semiconductors
Product specification
Dual non-retriggerable monostable
multivibrator with reset
74HC/HCT221
Fig.15 Typical output pulse width as a function of
temperature; C
X
= 0.1
μ
F; R
X
= 10 K
;
V
CC
= 5 V.
Fig.16 k factor as a function of supply voltage;
R
X
= 10 K
; T
amb
= 25
°
C.
Power-down consideration
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.17.
Fig.17 Power-down protection circuit.
PACKAGE OUTLINES
See
“74HC/HCT/HCU/HCMOS Logic Package Outlines”
.
相關PDF資料
PDF描述
74HC221 Dual non-retriggerable monostable multivibrator with reset
74221 Dual non-retriggerable monostable multivibrator with reset
74221 Dual Monostable Multivibrators (with Schmitt Trigger Input)
74221 High Speed CMOS Logic Dual Monostable Multivibrator with Reset
74221 Dual Non-Retriggerable Monostable Multivibrator
相關代理商/技術(shù)參數(shù)
參數(shù)描述
74HCT221D 制造商:NXP Semiconductors 功能描述:HCT Monostable Multivibrator 制造商:NXP Semiconductors 功能描述:74HCT CMOS SMD 74HCT221 SOIC16 制造商:NXP Semiconductors 功能描述:74HCT CMOS, SMD, 74HCT221, SOIC16 制造商:NXP Semiconductors 功能描述:74HCT CMOS, SMD, 74HCT221, SOIC16; Multivibrator Type:Non Retriggerable Monostable; Output Current:4mA; Propagation Delay:30ns; Logic Case Style:SOIC; No. of Pins:16; Supply Voltage Min:4.5V; Supply Voltage Max:5.5V; Operating ;RoHS Compliant: Yes 制造商:NXP Semiconductors 功能描述:Monostable Multivibrator Dual 16-Pin SO
74HCT221D,112 功能描述:單穩(wěn)態(tài)多諧振蕩器 DUAL MONO MULTIVIB NONRETRIGGERABLE RoHS:否 制造商:Texas Instruments 每芯片元件:1 邏輯系列:LVC 邏輯類型:Monostable Multivibrator 封裝 / 箱體:SSOP-8 傳播延遲時間:18.6 ns 高電平輸出電流:- 32 mA 低電平輸出電流:32 mA 電源電壓-最大:5.5 V 電源電壓-最小:1.65 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Reel
74HCT221D,118 功能描述:單穩(wěn)態(tài)多諧振蕩器 DUAL MONOSTABLE MULTIVIBRATOR RoHS:否 制造商:Texas Instruments 每芯片元件:1 邏輯系列:LVC 邏輯類型:Monostable Multivibrator 封裝 / 箱體:SSOP-8 傳播延遲時間:18.6 ns 高電平輸出電流:- 32 mA 低電平輸出電流:32 mA 電源電壓-最大:5.5 V 電源電壓-最小:1.65 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Reel
74HCT221D 制造商:NXP Semiconductors 功能描述:74HCT CMOS SMD 74HCT221 SOIC16
74HCT221D112 制造商:NXP Semiconductors 功能描述:IC DUAL NONRETRIG MONO MULTIVIBRATOR 3
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