LM555J/883 National Semiconductor, LM555J/883 Datasheet - Page 2

• Manufacturer Part Number: LM555J/883
• Description: IC,TIMER,BIPOLAR,DIP,8PIN,CERAMIC
• Manufacturer: National Semiconductor

© 2006 National Semiconductor Corporation
Ordering Information
LM555QML
Timer
General Description
The LM555 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 astable 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 200mA or drive
TTL circuits.
Features
n Direct replacement for SE555/NE555
n Timing from microseconds through hours
n Operates in both astable and monostable modes
Connection Diagrams
NS Part Number
LM555H/883
LM555J/883
Dual-In-Line Package
Top View
SMD Part Number
DS201498
20149803
NS Package Number
n Adjustable duty cycle
n Output can source or sink 200 mA
n Output and supply TTL compatible
n Temperature stability better than 0.005% per ˚C
n Normally on and normally off output
Applications
n Precision timing
n Pulse generation
n Sequential timing
n Time delay generation
n Pulse width modulation
n Pulse position modulation
n Linear ramp generator
H08A
J08A
Metal Can Package
Top View
Package Description
8LD Metal Can
8LD Ceramic Dip
www.national.com
20149833
July 2006