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An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

LM555-MIL

SNAS745 – JUNE 2017

LM555-MIL Timer

1

1 Features

1

•

Direct Replacement for SE555/NE555

•

Timing from Microseconds through Hours

•

Operates in Both Astable and Monostable Modes

•

Adjustable Duty Cycle

•

Output Can Source or Sink 200 mA

•

Output and Supply TTL Compatible

•

Temperature Stability Better than 0.005% per °C

•

Normally On and Normally Off Output

•

Available in 8-pin VSSOP Package

2 Applications

•

Precision Timing

•

Pulse Generation

•

Sequential Timing

•

Time Delay Generation

•

Pulse Width Modulation

•

Pulse Position Modulation

•

Linear Ramp Generator

3 Description

The

LM555-MIL

is

a

highly

stable

device

for

generating

accurate

time

delays

or

oscillation.

Additional terminals are provided for triggering or

resetting if desired. In the time delay mode of

operation, the time is precisely controlled by one

external resistor and capacitor. For a stable operation

as an oscillator, the free running frequency and duty

cycle are accurately controlled with two external

resistors and one capacitor. The circuit may be

triggered and reset on falling waveforms, and the

output circuit can source or sink up to 200 mA or

drive TTL circuits.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

LM555-MIL

SOIC (8)

4.90 mm × 3.91 mm

PDIP (8)

9.81 mm × 6.35 mm

VSSOP (8)

3.00 mm × 3.00 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

Schematic Diagram