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參數(shù)資料
| 型號： | LMC555ENG |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 模擬波形發(fā)生器 |
| 英文描述： | PULSE; RECTANGULAR, 3 MHz, TIMER, PDIP8 |
| 封裝： | PLASTIC, DIP-8 |
| 文件頁數(shù)： | 8/13頁 |
| 文件大?。?/td> | 389K |
| 代理商： | LMC555ENG |
Electrical Characteristics (Notes 1, 2)
Test Circuit, T = 25C, all switches open, RESET to V
S unless otherwise noted (Continued)
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
functional, but do not guarantee specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test conditions which
guarantee 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: See AN-450 for other methods of soldering surface mount devices, and also AN-1112 for micro SMD considerations.
Note 4: If the RESET pin is to be used at temperatures of 20C and below VS is required to be 2.0V or greater.
Note 5: For device pinout please refer to table 1
TABLE 1. Package Pinout Names vs. Pin Function
Pin Function
Package Pin numbers
8-Pin SO,MSOP, and MDIP
8-Bump micro SMD
GND
1
A3
Trigger
2B3
Output
3
C3
Reset
4C2
Control Voltage
5
C1
Threshold
6
B1
Discharge
7
A1
V
+
8A2
Test Circuit (Note 5)
DS008669-2
Maximum Frequency Test Circuit (Note 5)
DS008669-3
LMC555
www.national.com
4
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