NE556-SA556-SE556

3/8

Symbol

Parameter

SE556

NE556 - SA556

Unit

Min.

Typ.

Max.

Min.

Typ.

Max.

Supply Current (RL

Low Stage

High State

1. Supply current when output is high is typically 1mA less.

6

20

4

10

24

6

20

4

12

30

mA

Timing Error (monostable)

Drift with Temperature

Drift with Supply Voltage

0.5

30

0.05

2

100

0.2

1

50

0.1

3

0.5

%

ppm/°C

%/V

Timing Error (astable)

Initial Accuracy - see note 2

Drift with Temperature

Drift with Supply Voltage

1.5

90

0.15

2.25

150

0.3

%

ppm/°C

%/V

Control Voltage Level

9.6

2.9

10

3.33

10.4

3.8

9

2.6

10

3.33

11

4

V

Threshold Voltage

9.4

2.7

10

3.33

10.6

4

8.8

2.4

10

3.33

11.2

4.2

V

0.1

0.25

0.1

0.25

µA

Trigger Voltage

4.8

1.45

5

1.67

5.2

1.9

4.5

1.1

5

1.67

5.6

2.2

V

0.5

0.9

0.5

2.0

µA

4. Specified with trigger input high

0.4

0.7

1

0.4

0.7

1

V

Reset Current

0.1

0.4

0.4

1

0.1

0.4

0.4

1.5

mA

Low Level Output Voltage

0.1

0.4

2

2.5

0.1

0.05

0.15

0.5

2.2

0.25

0.2

0.1

0.4

2

2.5

0.3

0.25

0.25

0.75

2.5

0.4

0.35

V

High Level Output Voltage

13

3

12.5

13.3

3.3

12.75

2.75

12.5

13.3

3.3

V

Discharge Pin Leakage Current

20

100

20

100

nA

Discharge pin Saturation Voltage

5. No protection against excessive pin 7 current is necessary, providing the package dissipation rating will not be exceeded

180

80

480

200

180

80

480

200

mV

Output rise Time

Output Fall Time

100

100

200

200

100

100

300

300

ns

toff

6. Time measured from a positive going input pulse from 0 to 0.8x Vcc into the threshold to the drop from high to low of the output trigger is tied to threshold.

0.5

0.5

µs