TECHNICAL DATA

2012, July, ver.02

General Purpose Dual Timer

ILC556N/D 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.

Features

 Output voltage levels are compatible with input levels

of CMOS ICs.

 Supply current: not more than 600 A.

 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

Figure 1

ILC556N

ORDERING INFORMATION

Device

Operating

Temperature Range

Package

Packing

ILC556N

DIP-14

Tube

ILC556D

SOP-14

Tube

ILC556DT

SOP-14

Tape & Reel

ILC556N

DISCHARGE

1

01

02

03

04

05

06

07

08

09

10

11

12

13

14

THRESHOL

D1

CONTROL

VOLTAGE1

RESET1

OUTPUT1

TRIGGER1

GND

TRIGGER2

OUTPUT2

RESET2

CONTROL

VOLTAGE2

THRESHOL

D2

DISCHARGE

2