Hist ts Si se SA556-1F,N @ SE556-1N,F NE556-1N,F SE556-1CN,F FEATURES PIN CONFIGURATION . Turn off time less than 2uS F.N PACKAGE Maximum operating frequency greater than 500kHz Timing from microseconds to hours oiscHarce [1] Pa] Voc e Replaces two 555 timers THRESHOLD [2 | [13] DISCHARGE Operates in both astable and monostable CONTROL By [3] THRESHOLD modes CONTROL High output current ese [a] TU VOLTAGE Adjustable duty cycle outrut [6 | 0] RESET TTL compatible Triacer [6 | [9] output Temperature stability of 0.005% per C crouno [7] a] triccer APPLICATIONS * Precision timing * Sequential timing BLOCK DIAGRAM Pulse shaping " * Pulse generator * Missing pulse detector T ec Tone burst generator DISCHARGE DISCHARGE Pulse width modulation I * Time delay generator THRESHOLD | 4 THRESHOLD Frequency division ; _ Industrial controls CONTROL VOLTAGE ->4 I p| CONTROL VOLTAGE * Pulse position modulation RESET | RESET * Appliance timing | ; [ Traffic light control t e Touch tone encoder FLIP FLOP ' FLIP FLOP I ! OUTPUT I OUTPUT I ' i _ TRIGGER \ | TRIGGER I GROUND I EQUIVALENT SCHEMATIC (Shown for one circuit only) FM CONTROL VOLTAGE Yeo O R1 R2 R3 R4 R7 4.7K 330 4.7K 1K < 5K Qs Qe Q7 ag a8 THRESHOLD: Qi Q2 O OUTPUT RESET oKers DISCHARGE a4 ano OF = . ~ +. + SiNUtiCS 249 SAS56-1F,N # SE556-1N,F NESS6-1N,F SE5S56-1CN,F ABSOLUTE MAXIMUM RATINGS PARAMETER RATING UNIT Supply voltage SE556-1 +18 Vv NE556-1, SE556-1C, SA556-1 +16 Vv Power dissipation 1.20 Ww Operating temperature range NE556-1 0 to +70 C SA556-1 -40 to +85 C SE556-1, SE556-1C -55 to +125 C Storage temperature range -65 to +150 C Lead temperature {soldering, 60 sec) +300 c ELECTRICAL CHARACTERISTICS Ta = 25C, Vcc = +5V to +15V unless otherwise specified. SE556-1 SA556-1/NE556-1/SE556-1C PARAMETER TEST CONDITIONS IT: Min Typ Max Min Typ Max UNITS Supply voltage 45 | 18 4.5 16 Vv Supply current (low state) Voc =5V Ri = 6 10 6 12 mA Veco = 15V RL = 20 24 20 30 mA Timing error (monostable) Ra = 2k9 to 100k Initial accuracy2 C=01,nF 05 15 0.75 3.0 % Drift with temperature 30 100 50 pom/C Drift with supply voltage 0.05 0.2 0.1 0.5 %/V Timing error (astable) Ra, Re = 1kQ to 100k Initial accuracy? C=0.1uF 15 2.25 % Drift with temperature Voc = 15V 90 150 ppm/C Drift with supply voltage 0.15 0.3 %/V Control voltage level Voc = 15V 9.6 10.0 10.4 9.0 10.0 11.0 Vv Voc = 5V 2.9 3.33 3.8 2.6 3.33 4.0 Vv Threshold voltage Voc = 15V 9.4 10.0 10.6 8.8 10.0 11.2 Vv Voc = 5V 2.7 3.33 4.0 2.4 3.33 4.2 Vv Threshold current 30 250 30 250 nA Trigger voltage Voc = 15V 48 5.0 5.2 4.5 5.0 5.6 v Voc = 5V 1.45 1.67 1.9 1.1 1.67 2.2 Vv Trigger current Viric = OV 0.5 0.9 0.5 2.0 pA Reset voltages 0.4 0.7 1.0 0.4 0.7 1.0 Vv Reset current 0.1 0.4 0.1 0.6 mA Reset current VRESET = OV 0.4 1.0 0.4 1.5 mA Output voltage (low) Voc = 15V \siInk = 10mMA 0.1 0.15 Q.1 0.25 Vv \sink = 50mMA 0.4 0.5 0.4 0.75 V IsinkK = 100mMA 0.8 1.2 2.0 2.5 v Isink = 200mA 2.5 25 v Voc = 5V IsInK = 8MA 0.1 0.2 0.25 0.3 Vv IsiInk = SMA 0.05 0.15 0.15 0.25 Vv Output voltage (high) Voc = 15V isoURCE = 200MA 12.5 125 Vv IsouRCE = 100mA 13.0 13.3 12.75 13.3 Vv Voc = 5V tsource = 100mA 3.0 3.3 2.75 3.3 V Turn off time6 Vreset = Vcc 0.5 2.0 0.5 Us Rise time of output 100 200 100 300 ns Fall time of output 100 200 100 300 ns Discharge leakage current 20 100 20 100 nA Matching characteristics4 Initial accuracy2 0.5 1.0 1.0 2.0 % Drift with temperature +10 +10 ppm/C Drift with supply voltage 0.1 0.2 0.2 0.5 %/V 250 SiqNGtics = S 6556-1 S$ F566 Ss 56= 1 TYPICAL CHARACTERISTICS SA556-1F.N @ SE5i6-1N,F NES56-1N,F SES56-1CN,F MINIMUM PULSE WIDTH SUPPLY CURRENT HIGH OUTPUT VOLTAGE DROP REQUIRED FOR TRIGGERING vs SUPPLY VOLTAGE vs OUTPUT SOURCE CURRENT 150 425 < 3 100 se e % La z $1. 2 os se g Bo. 5 LL | J 8 > . 2 so ame ee = 8 = Leen Le = > O, ane | 20 25 " SV= Voc = 15 0 0 0.41 02 0.3 0.4 5.0 10.0 15.0 10 20 50 10 20 50 100 LOWEST VOLTAGE LEVEL OF TRIGGER PULSE SUPPLY VOLTAGE - VOLTS 'sournce 4 LOW OUTPUT VOLTAGE LOW OUTPUT VOLTAGE LOW OUTPUT VOLTAGE vs OUTPUT SINK CURRENT vs OUTPUT SINK CURRENT vs OUTPUT SINK CURRENT 10 10 10 Voc = 5 Voc 10V Vec= 15V wo 10 a 10 1.0 e - 3 3 2 L L 3 > 2 > 2 * as a "125C 0.1 invade 0.01 0.01 6.01 1.0 2.0 5.0 10 20 50 100 1.0 2.0 5.0 10 20 50 100 "sink mA 'sinkA sink (MA) DELAY TIME DELAY TIME vs PROPAGATION DELAY vs TEMPERATURE SUPPLY VOLTAGE vs VOLTAGE LEVEL OF TRIGGER PULSE 1.015 1.015 3c0 1.010 1,010 260 = = 2 r 1.005 e 1.005 % 200 a < a a ia o a 1.000 2 1.000 3 180 N N < 3 3 S = 0.995 0.995 z 100 ina x 3 2 a +70C 0.990 0,990 50 +125C 0.985 0.985 9 -50 -25 0 +25 +50 +75 +100 +125 0 5 10 15 20 0 01 0.2 0.3 0.4 TEMPERATURE (C) SUPPLY VOLTAGE (V) LOWEST VOLTAGE LEVEL OF TFIIGGER PULSE (X Vcc} NOTES 1. Supply current when output is high js typically 1.0mA less. Tested at Vcc = 5V and Vcc = 18V. This will determine the maximum vaiue of Ra + Re. For 18V operation, the maximum total R = 10 megohms, and for 5 operation, the max. total R = 3.4 megohms. an SiNoties Matching characteristics refer to the difference between performance characteristics for each timer section in the monostable mode. Specified with trigger input high . Time measured from a positive going input pulse from 0 to 0.8 Vcc into the threshold to the drop fram high to tow of the output. Trigger is tied to threshold. 251