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Fairchild Semiconductor Electronic Components Datasheet

LM556 Datasheet

Dual Timer

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LM556/NE556
Dual Timer
www.fairchildsemi.com
Features
• Replaces Two LM555/NE556 Timers
• Operates in Both Astable And Monostable Modes
• High Output Current
• TTL Compatible
• Timing From Microsecond To Hours
• Adjustable Duty Cycle
• Temperature Stability Of 0.005% Per °C
Applications
• Precision Timing
• Pulse Shaping
• Pulse Width Modulation
• Frequency Division
• Traffic Light Control
• Sequential Timing
• Pulse Generator
• Time Delay Generator
• Touch Tone Encoder
• Tone Burst Generator
Internal Block Diagram
Description
The LM556/NE556 series dual monolithic timing circuits
are a highly stable controller capable of producing accurate
time delays or oscillation. The LM556/NE556 is a dual
LM555. Timing is provided an external resistor and capaci-
tor for each timing function. The two timers operate inde-
pendently of each other, sharing only VCC and ground. The
circuits may be triggered and reset on falling waveforms.
The output structures may sink or source 200mA.
14-DIP
14-SOP
11
©2001 Fairchild Semiconductor Corporation
Rev. 1.0.0


Fairchild Semiconductor Electronic Components Datasheet

LM556 Datasheet

Dual Timer

No Preview Available !

LM556/NE556
Absolute Maximum Ratings (TA = 25°C)
Parameter
Supply Voltage
Lead Temperature (soldering 10sec)
Power Dissipation
Symbol
VCC
TLEAD
PD
Operating Temperature Range
LM556/NE556
TOPR
Storage Temperature Range
TSTG
Value
16
300
600
0 ~ + 70
- 65 ~ + 150
Unit
V
°C
mW
°C
°C
2


Part Number LM556
Description Dual Timer
Maker Fairchild Semiconductor
Total Page 8 Pages
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