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參數(shù)資料
| 型號： | LMC555CH |
| 英文描述： | CMOS Timer(86.50 k) |
| 中文描述： | 的CMOS定時器（86.50十一） |
| 文件頁數(shù)： | 3/8頁 |
| 文件大?。?/td> | 86K |
| 代理商： | LMC555CH |
Electrical Characteristics
Test Circuit, T = 25C, all switches open, RESET to V
S
unless otherwise noted (Continued)
(Notes 1, 2)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
(Limits)
t
PD
Trigger Propagation Delay
V
S
= 5V, Measure Delay
from Trigger to Output
100
ns
Note 1:
All voltages are measured with respect to the ground pin, unless otherwise specified.
Note 2:
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is func-
tional, but do not guarantee specific performance limits. Electrical Characteristics state DC andAC electrical specifications under particular test conditions which guar-
antee specific performance limits. This assumes that the device is within the Operating Ratings. Specifications are not guaranteed for parameters where no limit is
given, however, the typical value is a good indication of device performance.
Note 3:
Refer to RETSC555X drawing for specifications of military LMC555H version.
Note 4:
For operation at elevated temperatures, the device must be derated based on a 150C maximum junction temperature and a thermal resistance of 111C/W
for the LMC555CN, 167C/W for the LMC555CH, 169C/W for the LMC555CM, and 225C/W for the LMC555MM. Maximum allowable dissipation at 25C is 1126
mW for the LMC555CN, 755 mW for the LMC555CH, 740 mW for the LMC555CM and 555 mW for the LMC555MM.
Note 5:
If the RESET pin is to be used at temperatures of 20C and below V
S
is required to be 2.0V or greater.
Typical Applications
Test Circuit
DS008669-2
Maximum Frequency Test Circuit
DS008669-3
Monostable (One-Shot)
DS008669-4
t
H
= 1.1 R
A
C (Gives time that output is high following trigger)
RESET overrides TRIGGER, which can override THRESHOLD. Therefore, the trigger pulse must be shorter than the desired t
H
.
The minimum trigger pulse width is 20 ns.
The minimum reset pulse width is 400 ns.
3
www.national.com
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LMC555CM | 功能描述:計時器和支持產(chǎn)品 RoHS:否 制造商:Micrel 類型:Standard 封裝 / 箱體:SOT-23 內(nèi)部定時器數(shù)量:1 電源電壓-最大:18 V 電源電壓-最小:2.7 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 |
| LMC555CM NOPB | 制造商:National Semiconductor 功能描述:Standard Timer Single 8-Pin SOIC N Rail |
| LMC555CM | 制造商:Texas Instruments 功能描述:IC TIMER CMOS SMD SOIC8 555 |
| LMC555CM/NOPB | 功能描述:計時器和支持產(chǎn)品 CMOS Timer RoHS:否 制造商:Micrel 類型:Standard 封裝 / 箱體:SOT-23 內(nèi)部定時器數(shù)量:1 電源電壓-最大:18 V 電源電壓-最小:2.7 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 |
| LMC555CM/NOPB | 制造商:Texas Instruments 功能描述:Timer IC |
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