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PDF LM555C Data sheet ( Hoja de datos )
| Número de pieza | LM555C | |
| Descripción | Timers for Timing Delays and Oscillator Application in Commercial | |
| Fabricantes | Harris Corporation | |
| Logotipo |  |
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SEMICONDUCTOR
May 1997
CA555, CA555C,
LM555, LM555C, NE555
Timers for Timing Delays and Oscillator Application
in Commercial, Industrial and Military Equipment
Features
Description
• Accurate Timing From Microseconds Through Hours
• Astable and Monostable Operation
• Adjustable Duty Cycle
• Output Capable of Sourcing or Sinking up to 200mA
• Output Capable of Driving TTL Devices
• Normally ON and OFF Outputs
• High Temperature Stability . . . . . . . . . . . . . . 0.005%/oC
• Directly Interchangeable with SE555, NE555, MC1555,
and MC1455
The CA555 and CA555C are highly stable timers for use in
precision timing and oscillator applications. As timers, these
monolithic integrated circuits are capable of producing accu-
rate time delays for periods ranging from microseconds
through hours. These devices are also useful for astable
oscillator operation and can maintain an accurately con-
trolled free running frequency and duty cycle with only two
external resistors and one capacitor.
Applications
• Precision Timing
• Sequential Timing
• Time Delay Generation
• Pulse Generation
• Pulse Detector
• Pulse Width and Position
The circuits of the CA555 and CA555C may be triggered by
the falling edge of the waveform signal, and the output of
these circuits can source or sink up to a 200mA current or
drive TTL circuits.
Modulation
Ordering Information
These types are direct replacements for industry types in
packages with similar terminal arrangements e.g. SE555
PART NUMBER
(BRAND)
CA0555E
TEMP.
RANGE (oC)
PACKAGE
-55 to 125 8 Ld PDIP
PKG.
NO.
E8.3
and NE555, MC1555 and MC1455, respectively. The CA555
type circuits are intended for applications requiring premium
electrical performance. The CA555C type circuits are
CA0555M (555)
CA0555M96 (555)
-55 to 125 8 Ld SOIC
-55 to 125 8 Ld SOIC †
M8.15 intended for applications requiring less stringent electrical
M8.15 characteristics.
CA0555T
-55 to 125 8 Pin Metal Can T8.C
CA0555CE
CA0555CM (555C)
0 to 70
0 to 70
8 Ld PDIP
8 Ld SOIC
E8.3
DaMt8a.1S5heet4U.com
CA0555CM96 (555C)
0 to 70 8 Ld SOIC †
M8.15
CA0555CT
0 to 70 8 Pin Metal Can T8.C
LM555N
-55 to 125 8 Ld PDIP
E8.3
LM555CN
0 to 70 8 Ld PDIP
E8.3
NE555N
0 to 70 8 Ld PDIP
E8.3
NOTE: † Denotes Tape and Reel
DataShee
Pinouts
CA555, CA555C (PDIP, SOIC)
LM555, LM555C, NE555 (PDIP)
TOP VIEW
GND 1
8 V+
TRIGGER 2
7 DISCHARGE
OUTPUT 3
6 THRESHOLD
RESET 4
5 CONTROL
VOLTAGE
CA555, CA555C (METAL CAN)
TOP VIEW
GND 1
V+
8
TAB
7 DISCHARGE
Functional Block Diagram
V+ TRIGGER
CONTROL
8 VOLTAGE 5 2
6
THRESHOLD
COMPAR
4
TRIGGER
COMPAR
FLIP-FLOP
3
OUTPUT
7
DataSheet4U.com
TRIGGER 2
6 THRESHOLD
OUTPUT 3
5 CONTROL
4 VOLTAGE
RESET
1
GND
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright © Harris Corporation 1997
DataSheet4 U .com
8-3 DataSheet4U.com
File Number 834.4
1 page  
www.DataSheet4U.com
CA555, CA555C, LM555, LM555C, NE555
t1 t2
5V
0
3.3V
100
TA = 25oC, V+ = 5V
10
R1 + 2R2 = 1kΩ
1 10kΩ
100kΩ
1MΩ
0.1 10MΩ
1.7V
0
Top Trace: Output voltage (2V/Div. and 0.5ms/Div.)
Bottom Trace: Capacitor voltage (1V/Div. and 0.5ms/Div.)
FIGURE 5. TYPICAL WAVEFORMS FOR REPEAT CYCLE TIMER
Typical Performance Curves
0.01
0.001
10-1
1
10 102 103 104 105
FREQUENCY (Hz)
FIGURE 6. FREE RUNNING FREQUENCY OF REPEAT CYCLE
TIMER WITH VARIATION IN CAPACITANCE AND
RESISTANCE
et4U.com
150
10
9
100 TA = -55oC
8
7
0oC DataSheet4U.c6om
25oC
5
50
70oC
4
125oC
3
2
TA = 125oC
25oC
50oC
0 0.1 0.2 0.3 0.4
MINIMUM TRIGGER (PULSE) VOLTAGE (x V+) (NOTE)
NOTE: Where x is the decimal multiplier of the supply voltage.
1
0 2.5
5 7.5 10 12.5
SUPPLY VOLTAGE (V)
15
FIGURE 7. MINIMUM PULSE WIDTH vs MINIMUM TRIGGER
VOLTAGE
2.0
TA = -55oC
FIGURE 8. SUPPLY CURRENT vs SUPPLY VOLTAGE
10.0
V+ = 5V
1.6
25oC
1.2
125oC
TA = -55oC
25oC
1.0 125oC
0.8
0.4
5V ≤ V+ ≤ 15V
0
1 10
SOURCE CURRENT (mA)
FIGURE 9. OUTPUT VOLTAGE DROP (HIGH STATE) vs
SOURCE CURRENT
100
DataSheet4U.com
0.1
0.01
1
10
SINK CURRENT (mA)
FIGURE 10. OUTPUT VOLTAGE LOW STATE vs SINK
CURRENT
100
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5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet LM555C.PDF ] | |
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