ILC556N GENERAL PURPOSE DUAL TIMER • • • • • • • • • • • ILC556N is designed to be used: as high-precision pulse oscillator with adjustable frequency and on-off time ratio; for producing accurate time delays using external resistors and capacitors; as a timer in domestic appliances, in measuring equipment, computers; as functional units in electronic instruments. The timer may be used as oscillator producing accurate time delays and frequencies. In astable mode the pulse width of each circuit is controlled by one external resistor and capacitor. In monostable mode, when 14 used as oscillator, its own frequency of oscillation and on-off time 1 ratio are controlled by two external resistors and one capacitor. Unlike bipolar timer, CONTROL VOLTAGE output does not TA = -20° to 70° C require any capacitor decoupling. TRIGGER, RESET inputs are active as per low level. Output inverter provides sufficient drain and source currents to control TTL-loads, and provides minimum bias when controlling CMOS-loads. Input voltage levels are compatible with standard CMOS levels. Output voltage levels are compatible with input levels of CMOS ICs. Supply current: not more than 600 µA. Supply voltage range: from 2.0 to 18V. Input current: 50, 100 pA at T=25 °С. Output current: 20 mA. Timing from microseconds to hours. Operates both in astable and monostable modes. Adjustable duty cycle. Temperature stability: 0.06%/°С. Latch current not less than 100 mA at T=70 °С. Allowed static potential value: not less than 2000V (HBM) and not less than 200 V (ММ). Pin Configuration DISCHARGE1 01 14 THRESHOLD1 02 13 DISCHARGE2 CONTROL 03 VOLTAGE1 12 THRESHOLD2 11 CONTROL VOLTAGE2 ILC556N VCC RESET1 04 OUTPUT1 05 10 RESET2 TRIGGER1 06 09 OUTPUT2 GND 07 08 TRIGGER2 1 ILC556N Truth Table THRESHOLD X > 2/3VCC < 2/3VCC X TRIGGER X > 1/3VCC > 1/3VCC < 1/3VCC RESET L H H H OUTPUT L L STABLE H Maximum ratings and recommended operating conditions Parameter, unit Symbol Recommended operating conditions Typical Min Max Supply voltage, V VCC 2.0 18.0 Output current, mA IO 20 Input voltage, V VTH, VTRIG, VRST Power dissipation, mW PD -20 70 TOPR Operating temperature,°С TSTG Storage temperature, °С TSOLDER Lead solder temperature, °С (10 sec max) 2 DISCHARGE ON ON STABLE OFF Maximum ratings Typical Min 0 -0.3 Max 18.0 100 VCC+0.3 -20 -65 300 85 150 260 ILC556N AC characteristics Parameter Symbol Threshold voltage, VCC Trigger voltage, VCC VTH Reset voltage, V VRST Control voltage, VCC Output voltage, LOW, V Output voltage, HIGH, V Supply current , µА Condition IOL, IOH VCC, V 5.0 VTRIG 5.0 2.0 18.0 2.0 18.0 VCV VOL IOL = 3.2 мА IOL = 20 мА IOL = 3.2 мА IOL = 20 мА VOH IOH = -0.8 мА ICC 3 5.0 15.0 5.0 15.0 5.0 15.0 5.0 15.0 2.0 18.0 2.0 18.0 Min 0.65 0.60 0.31 0.28 0.4 Typical Max 0.70 0.80 0.36 0.40 1.0 Temperature, °С 25±10 -20, 70 25±10 -20, 70 25±10 0.2 1.5 -20, 70 0.65 0.60 0.69 0.80 0.4 1.0 0.6 1.5 25±10 -20, 70 25±10 4.0 14.3 3.5 14.0 -20, 70 25±10 -20, 70 400 600 800 1000 25±10 -20, 70 ILC556N DC characteristics Parameter Symbol Condition RL, CL Typical VCC, V 5.0 Min Max Tempera ture °С - 75 25±10 500 200 5 150 -20, 70 25±10 -20, 70 -20, 70 Clock rise and fall time, ns tTHL, tTLH RL = 10 МОhm, CL = 10 pF Maximum oscillation frequency, kHz Initial frequency, % Oscillation frequency temperature ratio, %/°С fMAX Monostable mode 2.018.0 αf RL = 1 - 100 kОhm, CL = 0.1 µF 5.0 10.0 0.02 0.03 15.0 5.0 0.06 3 6 Oscillation frequency instability, %/V ∆f Block diagram Vcc RESET Trigger R ComparatorA threshold + control voltage - OUTPUT DISCHARGE R + - TRIGGER R Comparator B Time diagram VCC 0.9 TRIGGER GND 0.1 tHL VCC 0.9 0.9 OUTPUT 0.1 0.1 tTLH tTHL 4 GND 25±10 -20, 70