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Technical content

2011, January, ver.01 CMOS general purpose timer The ILC555 is CMOS RC timers providing significantly improved performance over the standard SE/NE555 and 355 timers, while at the same time being direct replacements for those devices in most applications. Improved parameters include low supply current, wide operating supply voltage range, low THRESHOLD, TRIGGER and RESET currents, no crowbarring of the supply current during output transitions, higher frequency performance and no requirement to decouple CONTROL VOLTAGE for stable operation. Specifically, the ILC555 is stable controller capable of producing accurate time delays of frequencies.

  • Exact equivalent in most cases for SE/NE555.
  • Low Supply Current.
  • High speed operation – 500 kHz guaranteed.
  • Wide operation supply voltage range – 2 to 18 volts.
  • Timing from microseconds through hours.
  • Operates in both astable and monostable modes.
  • Adjustable duty cycle.
  • High output source/sink driver can drive TTL/CMOS ILC555

ORDERING INFORMATION

TA = -20° to 70° C for all packages. PIN ASSIGNMENT OUTPUT TRIGGER RESET ILC555N DISCHARGE VCC01 04 05 THRESHOLD CONTROL VOLTAGE GND

2011, January, ver.01 TRUTH TABLE THRESHOLD TRIGGER RESET OUTPUT DISCHARGE X X L L ON > 2/3⋅VCC > 1/3⋅VCC H L ON < 2/3⋅VCC > 1/3⋅VCC H STABLE STABLE X < 1/3⋅VCC H H OFF MAXIMUM RATINGS AND RECOMMENDED OPERATING CONDITIONS Parameter, unit Symbol Recommended operating conditions Maximum ratings Value Value min max min max Supply Voltage, V VCC 2.0 18.0 0 18.0 Output Current, mА IO - 20 - 100 Input Voltage, V VTH, VTRIG, VRST - - -0.3 VCC+0.3 Power Dissipation, mW PD - - - 200 Operating Temperature,°С TOPR -20 70 -20 85 Storage Temperature, °С TSTG - - -65 150 Lead Temperature, 1 mm from Case for 10 Seconds, °С TSOLDER - - 260 * Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

2011, January, ver.01 DC ELECTRICAL CHARACTERISTICS (Voltages Referenced to GND) Parameter, units Symbol Test Conditions Value Tempe- rature, °С IOL, IOH VCC, В min max Threshold Voltage, V VTH 5.0 0.65 VCC 0.70 VCC 25±10 0.60 VCC 0.80 VCC -20, 70 Trigger voltage, V VTRIG 5.0 0.31 VCC 0.36 VCC 25±10 0.28 VCC 0.40 VCC -20, 70 2.0 0.4 1.0 25±10 Reset voltage, V VRST 18.0 18.0 Control Voltage Lead, V VCV 0.65 VCC 0.69 VCC 25±10 0.60 VCC 0.80 VCC -20, 70 Output voltage Low, V VOL IOL = 3.2 mА 5.0 0.4 25±10 IOL = 20 mА 15.0 1.0 IOL = 3.2 mА 5.0 0.6 -20, 70 IOL = 20 mА 15.0 1.5 Output voltage High, V VOH 5.0 4.0 25±10 IOH = -0.8 mА 15.0 14.3 5.0 3.5 -20, 70 15.0 14.0 2.0 200 25±10 Supply Current, µA ICC 18.0 300 2.0 400 -20, 70 18.0 600

2011, January, ver.01 AC ELECTRICAL CHARACTERISTICS Parameter, unit Symbol Test Conditions Value Tempe- rature, °С RL, CL VCC, V Min Max Rise (Fall) Time of Output, ns tTHL, tTLH RL = 10 МΩ, CL = 10 pF 5.0 35 75 25±10 70 150 -20, 70 Guaranteed Max Osc Freq, kHz fMAX Astable Operation 2.0- 18.0 500 25±10 200 -20, 70 Initial accuracy, % RL = 1 - 100 kΩ, CL = 0.1 μF Drift with Temperature, %/°С αf 5.0 0.02 -20, 70 10.0 0.03 15.0 0.06 Drift with Supply Voltage, ∆f 5.0 3 25±10 %/В 6 -20, 70 Figura 1. Block Diagram tTHLtTLH tHL TRIGGER GND VCC GND V CC OUTPUT 0.9 0.1 0.1 0.9 0.9 0.1 Figura 2. Switcing Waveforms COMPARATOR A THRESHOLD TRIGGER COMPARATOR B

2011, January, ver.01 N SUFFIX PLASTIC DIP (M S – 001BA) Symbol MIN MAX A 8.51 10.16 B 6.1 7.11 C 5.33 D 0.36 0.56 F 1.14 1.78 G H J 0° 10° K 2.92 3.81 NO TES : L 7.62 8.26 1. Dim ensions “A”, “B” do not include m old flash or protrusions. M 0.2 0.36 Max im um m old flash or protrusions 0.25 m m (0.010) per side. N 0.38 D S UFFIX S OIC (M S - 012AA) Symbol MIN MAX A 4.8 5 B 3.8 4 C 1.35 1.75 D 0.33 0.51 F 0.4 1.27 G H J 0° 8° NO TES : K 0.1 0.25 1. Dim ensions A and B do not include m old flash or protrusion. M 0.19 0.25 1.27 5.72 Dimens ion, mm Dimens ion, mm 2.54 7.62 A BH C K C M J F M P G D R x 45 SEA TING PLANE 0.25 (0.010) M T -T- L H M J A B F G D SEATI NG PLANE N K 0.25 (0.010) M T -T- C