[INTERSIL FEATURES Timing from microseconds to hours Operates in both astabie and monostable time delay modes High output current Adjustable duty TTL compatible Temperature stability of 0.005%/C APPLICATIONS Precision Timing Sequential Timing Pulse Shaping cycle e Pulse Generator e Missing Pulse Detector Tone Burst Generator Pulse Width Modulation Time Delay Generator Frequency Division Industrial Controls Pulse Position Modulation Appliance Timing Traftic Light Control Touch Tone Encoder 556 Dual Precision Timer GENERAL DESCRIPTION The NE/SE556 Dual 555 Monolithic timing circuit is a highly stable controller capable of producing accurate time delays or oscillation. Timing is provided by an external resistor and capacitor for each timing function; the two timers operate independently of each other sharing only Vt and ground. The . circuits may be triggered and reset on falling waveforms. The output structures will sink or source 150mA. ABSOLUTE MAXIMUM RATINGS Supply Voltage .... 0. ccc cece ete eee eee es +18V Power Dissipation .......... 0c: ee eee eee cent eens 800mWw Operating Temperature Range NES5S6 ..... 0C to +70C SE556 ..-55C to +125C Storage Temperature Range ............ -65C to +150C Lead Temperature (Soldering, 60 sec) ......... ... +300C *Derate linearly at 6.5mV/ C above ambient temperature of 75C. BLOCK DIAGRAM vt DISCHARGE THRESHOLD COMP compe CONTROL |_4 VOLTAGE |} a meee FLIP FLOP FLIP rior | OUTPUT | OMP L <u TRIGGER | GROUND L PIN CONFIGURATION DISCHARGE [_} 1 14,7] vt THRESHOLD [_| 2 13 [7] olsCHARGE CONTROL DISCHARGE VOLTAGE 3 12 [7] THRESHOLD RESET CONTROL RESET [-} 4 111) VouTace THRESHOLD merges ; outeur [J 5 10 |) RESET CONTROL TRIGGER VOLTAGE TRIGGER (_| 6 3{_] outeut ESE GRoUNO(_| 7 a|_] TRIGGER (OUTLINE DRAWINGS JD, PD) OUTPUT ORDERING INFORMATION TRIGGER NE556/D | 0C to +70C Dice NE556F 14 pin CERDIP NES56N 14 pin plastic DIP | SE556/D | -55C to+125C | Dice / SESS56F* 14 pin CERDIP Add /8838 to order number if 883B processing is desired. 556 ELECTRICAL CHARACTERISTICS TEST CONDITIONS: Ta = 25C, V* = +5V to +15 unless otherwise specified. INTERSIL SE556 NES56 PARAMETER TEST CONDITIONS MIN TYP MAX MIN TYP MAX UNITS Supply Voltage 45 18 45 16 Vv Supply Current Vt=S5V RL =o 3 5 3 6 (each device) Vt=15VAL=0 10 11 10 14 mA Low State, Note 1 Timing Error (Monostable) Ra = 2K0 to 100KD . Initial Accuracy C =0.tuF Note 2 0.5 1.5 0.75 % Drift with Temperature 30 100 50 ppm/C Drift with Supply 0.05 0.2 0.1 %/V Voltage Timing Error (Astable) Ra, Re = 2K to 100KQ Initial Accuracy C = 0.1nF Note 2 1.5 2.25 % Drift with Temperature -90 150 ppm/C Drift with Supply a Voltage 0.15 0.3 %/V Threshold Voltage 2/3 2/3 ve Threshold Current Note 3 30 100 30 100 nA Trigger Voitage vt=15V 48 | 5 5.2 5 VF=5V 145 | 167 | 19 1.67 v Trigger Current 0.5 0.5 BA Reset Voltage 0.4 0.7 1.0 0.4 0.7 1.0 Vv Reset Current 0.1 0.1 mA Control Voltage Level vi = 15V 96 10 10.4 9.0 10 11 vi =5V 29 3.33 3.8 2.6 3.33 4 Output Voltage (low) vt =15V Isink = 10mA 0.1 0.15 0.1 25 IsiInk = 50mMA 0.4 0.5 0.4 75 Isink = 100mA 2.0 2.25 2.0 2.75 Isink = 200mMA 2.5 25 vi =5V Isink = 8MA 0.1 0.25 Vv sink = SMA 25 35 Output Voltage (high) IsouRCE = 200mA 12.5 12.5 | Vi = 15V lsouRCE = 100mMA vt= 15V 13.0 13.3 12.75 13.3 Vt=5V 3.0 3.3 2.75 3.3 Rise Time of Output 100 100 Fail Time of Output 100 700 ns Discharge Leakage Current 20 100 20 100 nA: Matching Characteristics (Note 4) Initial Timing Accuracy 0.05 0.1 0.1 0.2 % Timing Drift with . Temperature +10 +10 ppm/C Drift with Supply Voitage 0.1 0.2 0.2 0.5 TA 2. Tested at V* = 5V and V* = 15V. 3. This will determine the maximum vatue of Ra + Re for 15V operation. The maximum total R = 20 MN. 4. Matching characteristics refer to the difference between performance characteristics of each timer section. NOTES: 1. Supply current when output is high is typically 1.0mA less. 6-8