NJM556M

NJM556 DUAL TIMER ■ GENERAL DESCRIPTION The NJM556 dual monolithic timing circuit is a highly stable controller capable of producing accurate time delays or oscillation. In the time delay mode, delay time is precisely controlled by only two external parts : a resistor and a capacitor. For operation as an oscillator, both the free running frequency and the duty cycle are accurately controlled by two external resistors and capacitor. Terminal are provided for triggering and resetting. The circuit will trigger and reset on falling waveforms. The output can source or sink up to 200mA or drive TTL circuits. ■ PACKAGE OUTLINE N JM556D N JM556M ■ FEATURES ● Dual Timer Circuits ● Less number of External Components ● Package Outline ● Bipolar Technology DIP14, DMP14 ■ PIN CONFIGURATION N JM556D N JM556M ■ EQUIVALENT CIRCUIT (1/2 Shown) PIN FUNCTION 1. Discharge A 2. Threshold A 3. Control A 4. Reset A 5. Output A 6. Trigger A 7. Ground 8. Trigger B 9. Output B 10. Reset B 11. Control B 12. Threshold B 13. Discharge B 14. V+ Ver.2003-12-09 -1- NJM556 ■ ABSOLUTE MAXIMUM RATINGS PARAMETER Supply Voltage SYMBOL V+ Power Dissipation PD Operating Temperature Range Topr Storage Temperature Range Tstg (Note) At on PC board RATINGS 18 (DIP14) 570 (DMP14) 700(note) -40 to +85 -40 to +125 ■ ELECTRICAL CHARACTERISTICS PARAMETER Operating Voltage Operating Current (Note 2) Operating Current (Note 2) Threshold Voltage Trigger Voltage Trigger Voltage Trigger Current Reset V...