Philips Semiconductors Linear Products Product specification Dual timer NE/SA/SE556/NE556-1 DESCRIPTION PIN CONFIGURATION Both the 556 and 556-1 Dual Monolithic timing circuits are highly stable controllers capable of producing accurate time delays or oscillation. The 556 and 556-1 are a dual 555. Timing is provided by an external resistor and capacitor for each timing function. The two timers operate independently of each other, sharing only VCC and ground. The circuits may be triggered and reset on falling waveforms. The output structures may sink or source 200mA. D, F, N Packages FEATURES • Turn-off time less than 2µs (556-1) • Maximum operating frequency >500kHz (556-1) • Timing from microseconds to hours • Replaces two 555 timers • Operates in both astable and monostable modes • High output current • Adjustable duty cycle • TTL compatible • Temperature stability of 0.005%/°C • SE556-1 compliant to MIL-STD or JAN DISCHARGE 1 14 THRESHOLD 2 13 DISCHARGE CONTROL VOLTAGE 3 12 THRESHOLD RESET 4 11 CONTROL VOLTAGE OUTPUT 5 10 RESET TRIGGER 6 9 OUTPUT GND 7 8 TRIGGER VCC • Pulse generator • Missing pulse detector • Tone burst generator • Pulse width modulation • Time delay generator • Frequency division • Touch-Toneencoder • Industrial controls • Pulse position modulation • Appliance timing • Traffic light control APPLICATIONS • Precision timing • Sequential timing • Pulse shaping BLOCK DIAGRAM 1 14 13 2 12 DISCHARGE THRESHOLD THRESHOLD COMP CONTROL VOLTAGE RESET COMP 3 11 4 10 TRIGGER GROUND Touch-Tone CONTROL VOLTAGE RESET FLIP FLOP FLIP FLOP OUTPUT VCC DISCHARGE 5 6 9 COMP COMP OUTPUT 8 TRIGGER 7 is a registered trademark of AT&T August 31, 1994 353 853-0035 13721 Philips Semiconductors Linear Products Product specification Dual timer NE/SA/SE556/NE556-1 EQUIVALENT SCHEMATIC (Shown for one circuit only) CONTROL VOLTAGE VCC R2 330 R1 4.7K Q5 R3 4.7K Q6 Q7 R4 1K R7 5K R12 6.8K Q21 Q9 Q8 Q22 Q19 R13 3.3K Q4 Q1 THRESHOLD R10 3.2 K Q2 Q3 OUTPUT Q23 C R5 10K TRIGGER R8 5K Q11 Q12 Q10 CB Q18 E R11 4.7K Q20 Q17 Q13 B R14 220 Q24 Q16 Q25 RESET Q15 DISCHARGE GND R6 100K Q14 R15 4.7K R9 5K R16 100 ORDERING INFORMATION DESCRIPTION TEMPERATURE RANGE ORDER CODE DWG # 14-Pin Plastic Small Outline (SO) Package 0 to +70°C NE556D 0175D 14-Pin Ceramic Dual In-Line Package (CERDIP) 0 to +70°C NE556F 0581B 14-Pin Plastic Dual In-Line Package (DIP) 0 to +70°C NE556N 0405B 14-Pin Ceramic Dual In-Line Package (CERDIP) 0 to +70°C NE556-1F 0581B 14-Pin Plastic Dual In-Line Package (DIP) 0 to +70°C NE556-1N 0405B 14-Pin Plastic Dual In-Line Package (DIP) -40°C to +85°C SA556N 0405B 14-Pin Ceramic Dual In-Line Package (CERDIP) -55°C to +125°C SE556F 0581B 14-Pin Plastic Dual In-Line Package (DIP) -55°C to +125°C SE556N 0405B ABSOLUTE MAXIMUM RATINGS SYMBOL VCC PARAMETER RATING UNIT NE/SA556, NE556-1 +16 V SE556 +18 V 800 mW Supply voltage PD Maximum allowable power dissipation1 TA Operating temperature range 0 to +70 °C SA556 -40 to +85 °C SE556 -55 to +125 °C -65 to +150 °C +300 °C NE556-1, NE556 TSTG Storage temperature range TSOLD Lead soldering temperature (10sec max) NOTES: 1. The junction temperature must be kept below 125°C for the D package and below 150°C for the N and F packages. At ambient temperatures above 25°C, where this limit would be exceeded, the Maximum Allowable Power Dissipation must be derated by the following: D package 115°C/W N package 80°C/W F package 100°C/W August 31, 1994 354 Philips Semiconductors Linear Products Product specification Dual timer NE/SA/SE556/NE556-1 ELECTRICAL CHARACTERISTICS TA=25°C, VCC=+5V to +15V, unless otherwise specified. SYMBOL PARAMETER Min VCC Supply voltage ICC Supply current (low state)1 Timing error (monostable) NE/SA556 NE556-1 SE556 TEST CONDITIONS Typ 4.5 Max Min 18 4.5 Typ UNIT Max 16 V VCC=5V, RL=∞ 6 10 6 12 mA VCC=15V, RL=∞ 20 24 20 30 mA RA=2kΩ to 100kΩ tM Initial accuracy2 C=0.1µF 0.5 2.0 0.75 3.0 % ∆tM/∆T Drift with temperature T=1.1 RC 30 100 50 150 ppm/°C 0.05 0.2 0.1 0.5 %/V ∆tM/∆VS Drift with supply voltage Timing error (astable) tA Initial accuracy2 ∆tA/∆T Drift with temperature ∆tA/∆VS Drift with supply voltage VC Control voltage level Threshold voltage RA, RB=1kΩ to 100kΩ C=0.µF 4 6 5 13 % VCC=15V 400 500 400 500 ppm/°C %/V 0.15 0.6 0.3 1 VCC=15V 9.6 10.0 10.4 9.0 10.0 11.0 VCC=5V 2.9 3.33 3.8 2.6 3.33 4.0 VCC=15V 9.4 10.0 10.6 8.8 10.0 11.2 V VCC=5V 2.7 3.33 4.0 2.4 3.33 4.2 V V VTH ITH Threshold current3 30 250 30 250 nA Trigger voltage VCC = 15V, VTH = 10.5V VCC=15V 4.8 5.0 5.2 4.5 5.0 5.6 V VCC=5V 1.45 1.67 1.9 1.1 1.67 2.2 V ITRIG Trigger current VTRIG=0V 0.5 0.9 0.5 2.0 µA VRESET Reset voltage5 0.4 0.7 1.0 0.4 0.7 1.0 V 0.4 0.1 0.4 0.4 0.1 0.6 mA 0.4 1.0 0.4 1.5 mA VTRIG IRESET Reset current VRESET=0.4V Reset current VRESET=0V Output voltage (low) ISINK=10mA 0.1 0.15 0.1 0.25 ISINK=50mA 0.4 0.5 0.4 0.75 2.0 2.25 2.0 3.2 2.0 2.5 VCC=15V SE556 VOL NE/SA556 ISINK=100mA NE556-1 Output voltage (low) ISINK=200mA 2.5 V 2.5 VCC=5V ISINK=8mA 0.1 0.2 0.25 0.3 ISINK=5mA 0.05 0.15 0.15 0.25 V VCC=15V ISOURCE=200mA VOH Output voltage (high) ISOURCE=100mA 12.5 12.5 13.0 13.3 12.75 13.3 3.0 3.3 2.75 3.3 V VCC=5V ISOURCE=100mA tOFF Turn-off time6 NE556-1 tR tF August 31, 1994 VRESET=VCC µs 0.5 2.0 0.5 Rise time of output 100 200 100 300 Fall time of output 100 200 100 300 ns Discharge leakage current 20 100 20 100 nA 355 ns Philips Semiconductors Linear Products Product specification Dual timer NE/SA/SE556/NE556-1 ELECTRICAL CHARACTERISTICS (Continued) SYMBOL PARAMETER NE/SA556/SE556C NE556-1/SE556-1C SE556/556-1 TEST CONDITIONS Min Typ Max Initial accuracy2 0.5 1.0 Drift with temperature 10 Drift with supply voltage 0.1 Min Typ Max 1.0 2.0 UNIT Matching characteristics4 ±10 0.2 0.2 % ppm/°C 0.5 %/V NOTES: 1. Supply current when output is high is typically 1.0mA less. 2. Tested at VCC=5V and VCC=15V. 3. This will determine maximum value of RA+RB. For 15V operation, the max total R=10MΩ, and for 5V operation, the maximum total R=3.4MΩ. 4. Matching characteristics refer to the difference between performance characteristics for each timer section in the monostable mode. 5. Specified with trigger input high. In order to guarantee reset the voltage at reset pin must be less than or equal to 0.4V. To disable reset function, the voltage at reset pin has to be greater than 1V. 6. Time measured from a positive-going input pulse from 0 to 0.4 VCC into the threshold to the drop from high to low of the output. Trigger is tied to threshold. The first half of the timer is started by momentarily connecting Pin 6 to ground. When it is timed out (determined by 1.1R1C1) the second half begins. Its duration is determined by 1.1R2C2. TYPICAL APPLICATIONS One feature of the dual timer is that by utilizing both halves it is possible to obtain sequential timing. By connecting the output of the first half to the input of the second half via a 0.001µF coupling capacitor sequential timing may be obtained. Delay t1 is determined by the first half and t2 by the second half delay. VCC VCC VCC R1 10k 130k 10 12 13 556 2 C2 50µF 8 .001 C1 1µF 6 7 11 5 OUTPUT 1 9 OUTPUT 2 3 .01 .01 NOTE: All resistor values are in Ω. Sequential Timer August 31, 1994 10k 14 1 INPUT VCC R2 1M 4 .001 VCC 356 Philips Semiconductors Linear Products Product specification Dual timer NE/SA/SE556/NE556-1 TYPICAL PERFORMANCE CHARACTERISTICS Minimum Pulse Width Required for Triggering Supply Current VS Supply Voltage 2.0 10.0 +125oC SUPPLY CURRENT — mA 125 –55oC 100 0 oC 75 50 +25oC 25 +70oC 8.0 VCC V OUT — VOLTS MINIMUM PULSE WIDTH (ns) 150 High Output Voltage Drop vs Output Source Current +25oC 6.0 55oC 4.0 2.0 0.2 1.6 +25oC 1.4 +125oC 1.2 1.0 0.8 0.6 5V = VCC = 15V 0.2 0 0.1 55oC 0.4 +125oC 0 1.8 0 5.0 0.4(XVCC) 0.3 10.0 0 1.0 15.0 2.0 5.0 SUPPLY VOLTAGE — VOLTS LOWEST VOLTAGE LEVEL OF TRIGGER PULSE Low Output Voltage vs Output Sink Current Low Output Voltage vs Output Sink Current 20 50 100 Low Output Voltae vs Output Sink Current 10 10 10 10 ISOURCE — mA VCC = 5V VCC = 15V VCC = 10V 55oC +25oC +125oC 0.1 0.01 1.0 +25oC 1.0 +125oC 0.1 1.0 0.1 –55oC 0.01 1.0 0.01 2.0 5.0 10 20 1.0 50 100 2.0 5.0 ISINK — mA 10 20 50 100 0.995 0.990 1.010 –50 25 0 +25 +50 +75 +100 +125 TEMPERATURE — oC August 31, 1994 50 100 250 –55oC 1.005 1.000 0.995 0.990 200 0 oC 150 100 +25oC +70oC 50 0.985 0.985 20 300 PROPAGATION — ns NORMALIZED DELAY TIME 1.000 10 Propagation Delay vs Voltage Level of Trigger Pulse 1.015 1.005 5.0 ISINK — mA Delay Time vs Supply Voltage 1.015 1.010 2.0 ISINK — mA Delay Time vs Temperature NORMALIZED DELAY TIME +125oC +25oC VOUT — VOLTS 1.0 VOUT —VOLTS V — VOLTS OUT –55oC +125oC 0 0 5 10 15 SUPPLY VOLTAGE — V 357 20 0 0.1 0.2 0.3 LOWEST VOLTAGE LEVEL OF TRIGGER PULSE — XVCC 0.4