NE555 英文原版技术手册.pdf

NA555, NE555, SA555, SE555 SLFS022H – SEPTEMBER 1973– REVISED JUNE 2010 PRECISION TIMERS Check for Samples: NA555, NE555, SA555, SE555 1 FEATURES • Timing From Microseconds to Hours • Adjustable Duty Cycle • Astable or Monostable Operation • TTL-Compatible Output Can Sink or Source up to 200 mA NA555...D OR P PACKAGE SE555...FK PACKAGE NE555...D, P, PS, OR PW PACKAGE (TOP VIEW) SA555...D OR P PACKAGE SE555...D, JG, OR P PACKAGE D C N C C C (TOP VIEW) N G C N V N GND 1 8 VCC NC 3 2 1 20 19 NC 4 18 TRIG 2 7 DISCH TRIG