LMC555_06 Datasheet, PDF (4/12 Pages) National Semiconductor (TI) – CMOS Timer

Electrical Characteristics (Notes 1, 2)
Test Circuit, T = 25˚C, all switches open, RESET to V_S unless otherwise noted (Continued)
Symbol Parameter
Conditions
∆t/∆T
f_A
f_MAX
t_R, t_F
t_PD
Timing Shift with
Temperature
Astable Frequency
Maximum Frequency
Output Rise and
Fall Times
Trigger Propagation Delay
V_S = 5V
−40˚C ≤ T ≤ +85˚C
SW 1, 3 Closed, V_S = 12V
Max. Freq. Test Circuit, V_S = 5V
Max. Freq. Test Circuit
V_S = 5V, C_L = 10 pF
V_S = 5V, Measure Delay
from Trigger to Output
Min Typ Max
Units
(Limits)
75
ppm/˚C
4.0
4.8
5.6
3.0
15
kHz
MHz
ns
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 −20˚C and below V_S is required to be 2.0V or greater.
Note 5: For device pinout please refer to table 1
Test Circuit (Note 5)
Maximum Frequency Test Circuit (Note 5)
00866902
TABLE 1. Package Pinout Names vs. Pin Function
Pin Function
GND
Trigger
Output
Reset
Control Voltage
Threshold
Discharge
V⁺
Package Pin numbers
8-Pin SO, MSOP, and MDIP
8-Bump micro SMD
1
A3
2
B3
3
C3
4
C2
5
C1
6
B1
7
A1
8
A2
00866903
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