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__ Jl:~~ ______________________<br />

<strong>ITT</strong>500<br />

H_E_X_D_I_G_IT_D_R_I_V_E_R<br />

SEMICONDUCTORS<br />

PACKAGE HPin Dual-in-line<br />

HEX DIGIT DRIVER<br />

• MOS to LED digit driver<br />

"<br />

• 250 rnA sink capability<br />

• Suitable for desk top a~d pocket calculators<br />

• Operation down to 5V<br />

• High gain Darlington Outputs<br />

The <strong>ITT</strong> 500 is a monolithic integrated c;:ircuit<br />

which provides the interface between' MOS<br />

integrated circuits and Light Emitting Diode<br />

(LED) digit displays. The <strong>ITT</strong> too is designed to<br />

be used in serially addressed multi-digit<br />

displays. This time-multiplexed system, using<br />

a segment address and digit scan method <strong>of</strong><br />

LED drive, minimizes the number <strong>of</strong> drivers<br />

required. The <strong>ITT</strong> 500 together with the <strong>ITT</strong> 501<br />

segment driver will operate over a wide range <strong>of</strong><br />

supply voltages to 5 volts. The Vee<br />

terminal must be connected to the most<br />

positive supply.<br />

Pin Configuration (Top View)<br />

schematic<br />

4.0K<br />

ABSOLUTE MAXIMUM RATINGS,<br />

(Measurement with respect to GND)<br />

Characteristic<br />

Collector Voltage VIL<br />

Supply Voltage Vee<br />

Input Voltage (Vin 0.9 MA<br />

VOL=1.25V<br />

IOH 200<br />

/JA<br />

VIL

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