Philips Semiconductors Linear Products

Product specification

NE558

Quad timer

August 31, 1994

379

DC AND AC ELECTRICAL CHARACTERISTICS

SYMBOL

PARAMETER

TEST CONDITIONS

NE558

UNIT

SYMBOL

PARAMETER

TEST CONDITIONS

Min

Typ

Max

UNIT

Supply voltage

4.5

16

V

Supply current

16

36

mA

Timing accuracy (t=RC)

R=2k

Ω to 100kΩ,

C=1

µF

Initial accuracy

±2

5

%

Drift with temperature

30

150

ppm/

°C

Drift with supply voltage

0.1

0.9

%/V

0.8

2.4

V

Trigger current

Trigger=0V

5

100

µA

0.8

2.4

V

Reset current

Reset

50

500

µA

Threshold voltage

0.63

Threshold leakage

15

nA

0.1

0.4

V

1.0

2.0

V

Output leakage

10

500

nA

Propagation delay

1.0

µs

Rise time of output

100

ns

Fall time of output

100

ns

NOTES:

1. The trigger functions only on the falling edge of the trigger pulse only after previously being high. After reset, the trigger must be brought high

and then low to implement triggering.

2. For reset below 0.8V, outputs set low and trigger inhibited. For reset above 2.4V, trigger enabled.