DATA SHEET
LND555
PRECISION TIMING CIRCUIT
GENERAL DESCRIPTION
FEATURES
The LND555 is a monolithic timing circuit
capable of producing accurate time delays or
oscillation. In the time delay mode of operation,
the timed interval is controlled by a single
external resistor and capacitor network. In the
astable mode of operation, the frequency and
duty cycle may be independently controlled with
two external resistors and a single external
capacitor.
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Timing from Microseconds to hours
Astable or Monostable Operation
Adjustable Duty Cycle
TTL-Compatible Output Can Sink or
Source UP to 200mA
Temperature Stability of 0.005% per °C
Direct Replacement for Signetics
NE555 Timers
PIN CONFIGURATION
APPLICATIONS
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Gnd
Trigger
Out
Reset
1
2
3
4
8
7
6
5
Vcc
Discharge
Threshold
Control Voltage
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Precision timing
Pulse generation
Sequential timing
Time delay generation
Pulse width modulation
Pulse position modulation
Missing pulse detector
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Linear Dimensions, Inc.
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445 East Ohio Street, Chicago IL 60611 USA
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tel 312.321.1810
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fax 312.321.1830
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