Timers & Support Products Dual Timer

KA556D

Manufacturer Part NumberKA556D
DescriptionTimers & Support Products Dual Timer
ManufacturerFairchild Semiconductor
TypeStandard
KA556D datasheet
 

Specifications of KA556D

Number Of Internal Timers2Supply Voltage (max)16 V
Supply Voltage (min)4.5 VMaximum Power Dissipation600 mW
Maximum Operating Temperature+ 70 CMinimum Operating Temperature0 C
Mounting StyleSMD/SMTPackage / CaseSOP-14
# Internal Timers2Power Dissipation600mW
Operating Supply Voltage (min)4.5VOperating Supply Voltage (typ)5/9/12/15V
Operating Supply Voltage (max)16VPackage TypeSOP
High Level Output Current-200mALow Level Output Current200mA
Pin Count14Operating Temp Range0C to 70C
Operating Temperature ClassificationCommercialMountingSurface Mount
Lead Free Status / RoHS StatusLead free / RoHS Compliant  
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KA556
Dual Timer
Features
• Replaces two KA555 Timers
• Operates in Both Astable and Monos Table 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
Control Voltage
3
Comparator
2
THRESHOLD
Discharge
1
Output
5
Output
©2004 Fairchild Semiconductor Corporation
Description
The KA556 series dual monolithic timing circuits are a
highly stable controller capable of producing accurate time
delays or oscillation. The KA556 is a dual KA555. Timing is
provided an external resistor and capacitor for each timing
function. The two timers operate independently of each
other, sharing only V
triggered and reset on falling waveforms. The output
structures may sink or source 200mA.
14-DIP
14-SOP
Trigger
Threshold
V
CC
12
14
6
R
R
Comparator
Comparator
R
Flip Flop
4
13
7
Reset
Discharge
GND
www.fairchildsemi.com
and ground. The circuits may be
CC
1
1
Control Voltage
11
R
R
Comparator
R
Flip Flop
Output
9
Output
Trigger
5
10
Reset
Rev. 1.0.1

KA556D Summary of contents

  • Page 1

    ... THRESHOLD Discharge 1 Output 5 Output ©2004 Fairchild Semiconductor Corporation Description The KA556 series dual monolithic timing circuits are a highly stable controller capable of producing accurate time delays or oscillation. The KA556 is a dual KA555. Timing is provided an external resistor and capacitor for each timing function. The two timers operate independently of each other, sharing only V triggered and reset on falling waveforms ...

  • Page 2

    KA556 Absolute Maximum Ratings (T Parameter Supply Voltage Lead Temperature (Soldering 10sec) Power Dissipation Operating Temperature Range KA556/KA556I Storage Temperature Range 2 = 25°C) A Symbol LEAD +70 / -40 ~ +85 ...

  • Page 3

    Electrical Characteristics (T = 25° 15V, unless otherwise specified Parameter Supply Voltage Supply Current * (Two Timers) 1 (Low State) Timing Error * (Monos Table) 2 Initial Accuracy Drift with Temperature Drift with Supply ...

  • Page 4

    KA556 Mechanical Dimensions Package 6.40 0.20 0.252 0.008 #1 #7 7.62 0.300 4 14-DIP #14 #8 3.25 0.20 0.128 0.008 5.08 MAX 0.200 Dimensions in millimeters 0.20 MIN 0.008 3.30 0.30 0.130 0.012 ...

  • Page 5

    Mechanical Dimensions Package #1 #7 0.60 0.20 0.024 0.008 (Continued) 14-SOP 1.55 0.061 #14 #8 6.00 0.30 1.80 0.236 0.071 0.012 3.95 0.20 0.156 0.008 5.72 0.225 Dimensions in millimeters 0.05 MIN 0.002 0.10 0.004 MAX KA556 5 ...

  • Page 6

    ... KA556 Ordering Information Product Number Package KA556 14-DIP KA556D 14-SOP KA556I 14-DIP KA556ID 14-SOP DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS ...