MC1455P1G
ON Semiconductor (安森美)
可编程定时器芯片
产品概述
ON SEMICONDUCTOR MC1455P1G 芯片， 定时电路
Timers
The MC1455 monolithic timing circuit is a highly stable controller capable of producing accurate time delays or oscillation. Additional terminals are provided for triggering or resetting if desired. In the time delay mode， time is precisely controlled by one external resistor and_capacitor. For astable 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 or drive TTL circuits.
Features
?Direct Replacement for NE555 Timers
?Timing from Microseconds through Hours
?Operates in Both Astable and_Monostable Modes
?Adjustable Duty Cycle
?High Current Output Can Source or Sink 200 mA
?Output Can Drive TTL
?Temperature Stability of 0.005%_per °C
?Normally ON or Normally OFF Output
?Pb?Free Packages are Available
