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參數資料
| 型號： | 74VHC221AMTC |
| 廠商： | Fairchild Semiconductor |
| 文件頁數： | 1/12頁 |
| 文件大小： | 0K |
| 描述： | MULTIVIBRATOR DUAL MONO 16TSSOP |
| 標準包裝： | 94 |
| 系列： | 74VHC |
| 邏輯類型： | 單穩態 |
| 獨立電路： | 2 |
| 施密特觸發器輸入： | 無 |
| 傳輸延遲： | 8.1ns |
| 輸出電流高，低： | 8mA，8mA |
| 電源電壓： | 2 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-TSSOP（0.173"，4.40mm 寬） |
| 供應商設備封裝： | 16-TSSOP |
| 包裝： | 管件 |
tm
74VHC221A
Dual
Non-Retrig
g
erab
le
Monostab
le
Multivibrator
May 2007
1994 Fairchild Semiconductor Corporation
www.fairchildsemi.com
74VHC221A Rev. 1.2
74VHC221A
Dual Non-Retriggerable Monostable Multivibrator
Features
■ High Speed: tPD = 8.1ns (Typ.) at VCC = 5V
■ Low Power Dissipation: ICC = 4A (Max.) at TA = 25°C
■ Active State: ICC = 600A (Max.) at TA = 25°C
■ High Noise Immunity: VNIH = VNIL = 28% VCC (Min.)
■ Power down protection is provided on all inputs
■ Pin and function compatible with 74HC221A
General Description
The VHC221A is an advanced high speed CMOS
Monostable Multivibrator fabricated with silicon gate
CMOS technology. It achieves the high speed operation
similar to equivalent Bipolar Schottky TTL while main-
taining the CMOS low power dissipation. Each multi-
vibrator features both a negative, A, and a positive, B,
transition triggered input, either of which can be used as
an inhibit input. Also included is a clear input that when
taken LOW resets the one-shot. The VHC221A can be
triggered on the positive transition of the clear while A is
held LOW and B is held HIGH. The VHC221A is non-
retriggerable, and therefore cannot be retriggered until
the output pulse times out. The output pulse width is
determined by the equation:
PW
= (Rx)(Cx)
where,
PW is in seconds, R is in ohms, and C is in farads.
Limits for Rx and Cx are:
External capacitor, Cx: No limit
External resistors, Rx:VCC = 2.0V, 5k Min.
VCC > 3.0V, 1 k Min
An input protection circuit ensures that 0 to 7V can be
applied to the input pins without regard to the supply
voltage. This device can be used to interface 5V to 3V
systems and two supply systems such as battery back
up. This circuit prevents device destruction due to mis-
matched supply and input voltages.
Ordering Information
Surface mount packages are also available on Tape and Reel. Specify by appending the suffix letter “X” to the
ordering code.
Order Number
Package
Number
Package Description
74VHC221AM
M16A
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
74VHC221ASJ
M16D
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74VHC221AMTC
MTC16
16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm
Wide
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相關代理商/技術參數 |
參數描述 |
|---|---|
| 74VHC221AMTC_07 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Dual Non-Retriggerable Monostable Multivibrator |
| 74VHC221AMTCX | 功能描述:單穩態多諧振蕩器 Dual 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 |
| 74VHC221AMTCX_NL | 功能描述:單穩態多諧振蕩器 FINISHED GOOD 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 |
| 74VHC221AMX | 功能描述:單穩態多諧振蕩器 Dual 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 |
| 74VHC221AN | 功能描述:單穩態多諧振蕩器 Dual 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 |
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