Timer. NE555 Datasheet

NE555 Timer. Datasheet pdf. Equivalent

Part NE555
Description Timer
Feature INTEGRATED CIRCUITS NE/SA/SE555/SE555C Timer Product data Supersedes data of 1994 Aug 31 Philips Se.
Manufacture Philipss
Datasheet
Download NE555 Datasheet




NE555
INTEGRATED CIRCUITS
NE/SA/SE555/SE555C
Timer
Product data
Supersedes data of 1994 Aug 31
Philips
Semiconductors
2003 Feb 14



NE555
Philips Semiconductors
Timer
Product data
NE/SA/SE555/SE555C
DESCRIPTION
The 555 monolithic timing circuit is a highly stable controller capable
of producing accurate time delays, or oscillation. 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 the duty cycle are both accurately
controlled with two external resistors and one capacitor. The circuit
may be triggered and reset on falling waveforms, and the output
structure can source or sink up to 200 mA.
FEATURES
Turn-off time less than 2 µs
Max. operating frequency greater than 500 kHz
Timing from microseconds to hours
Operates in both astable and monostable modes
High output current
Adjustable duty cycle
TTL compatible
Temperature stability of 0.005% per °C
APPLICATIONS
Precision timing
Pulse generation
Sequential timing
Time delay generation
Pulse width modulation
PIN CONFIGURATION
D and N Packages
GND 1
TRIGGER 2
OUTPUT 3
RESET 4
8 VCC
7 DISCHARGE
6 THRESHOLD
5 CONTROL VOLTAGE
SL00349
Figure 1. Pin configuration
BLOCK DIAGRAM
VCC
8
R
THRESHOLD 6 COMPARATOR
5 CONTROL
VOLTAGE
R
COMPARATOR
R
2
TRIGGER
7
DISCHARGE
FLIP FLOP
4
RESET
ORDERING INFORMATION
DESCRIPTION
8-Pin Plastic Small Outline (SO) Package
8-Pin Plastic Dual In-Line Package (DIP)
8-Pin Plastic Small Outline (SO) Package
8-Pin Plastic Dual In-Line Package (DIP)
8-Pin Plastic Dual In-Line Package (DIP)
8-Pin Plastic Dual In-Line Package (DIP)
OUTPUT
STAGE
3
OUTPUT
1
GND
Figure 2. Block Diagram
SL00350
TEMPERATURE RANGE
0 to +70 °C
0 to +70 °C
–40 °C to +85 °C
–40 °C to +85 °C
–55 °C to +125 °C
–55 °C to +125 °C
ORDER CODE
NE555D
NE555N
SA555D
SA555N
SE555CN
SE555N
DWG #
SOT96-1
SOT97-1
SOT96-1
SOT97-1
SOT97-1
SOT97-1
2003 Feb 14
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