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参数资料
| 型号： | LMC555H/883 |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 模拟波形发生器 |
| 英文描述： | PULSE; RECTANGULAR, 3 MHz, TIMER, BCY8 |
| 封装： | METAL CAN, TO-99, 8 PIN |
| 文件页数： | 13/18页 |
| 文件大小： | 921K |
| 代理商： | LMC555H/883 |
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/T
Timing Shift with
Temperature
V
S =5V
40C
≤ T ≤ +85C
75
ppm/C
f
A
Astable Frequency
SW 1, 3 Closed, V
S = 12V
4.0
4.8
5.6
kHz
f
MAX
Maximum Frequency
Max. Freq. Test Circuit, V
S = 5V
3.0
MHz
t
R,tF
Output Rise and
Fall Times
Max. Freq. Test Circuit
V
S = 5V, CL =10pF
15
ns
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
Test Circuit (Note 5)
00866902
Maximum Frequency Test Circuit (Note 5)
00866903
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
LMC555
www.national.com
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