ILC556N

1

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

used as oscillator, its own frequency of oscillation and on-off time

ratio are controlled by two external resistors and one capacitor.

Unlike bipolar timer, CONTROL VOLTAGE output does not

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).

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14

Pin Configuration

ILC556N

DISCHARGE1

V

CC

01

02

03

04

05

06

07

08

09

10

11

12

13

14

THRESHOLD1

CONTROL

VOLTAGE1

RESET1

OUTPUT1

TRIGGER1

GND

TRIGGER2

OUTPUT2

RESET2

CONTROL

VOLTAGE2

THRESHOLD2

DISCHARGE2