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| SAA1029 UNIVERSAL INDUSTRIAL LOGIC AND INTERFACE CIRCUIT GENERAL DESCRIPTION The SAA1029 is a universal bipolar logic and interface IC with high noise immunity and operational stability for industrial control applications. The most fundamental industrial control functions can be accomplished with only one SAA1029IC. Figure 1 shows the logic configuration. The IC comprises, (1) Gate 1 : 4-input AND gate with 1 inverted input, (2) Gate 2 : 3-input AND gate with 1 inverted input and adjustable propagation delay, (3) Gate 3 : 2-input AND gate with 1 inverted input. The SAA1029 can be used as direct interface with LOCMOS (CMOS) Ics for realizing more complex functions. Therefore, the output signal can be limited to the voltage level of the common output claming pin Z. The propagation delay of NAND gate 2 is adjustable from microseconds by using an external capacitor at pin C. This makes it possible to adapt the control frequency limits to the system, so the optimum dynamic noise immunity can be achieved. All the static and dynamic circuit values ( including the output voltage) are independent of the supply voltage over a wide operating range. This allows the use of a simple unstabilized power supply. The output is held to the LOW state automatically during swithching on the power supply, so a special reset pulse can be omitted. Features * Simple realization of the basic industrial control functions ( logic functions, timing functions, memory functions). * High dynamic and static noise immunity. * High operation stability. * Short-circut protection of inputs and outputs to both VEE and VCC. * Wide interruption results in a safe input LOW state. * LOCMOS (CMOS) compatible. COMSET SEMICONDUCTORS 1/1 SAA1029 QUICK REFERENCE DATA Supply voltage range Operating ambient temerature range Input voltage HIGH Output voltage HIGH (without clamping) Output voltage HIGH (without clamping at pin Z) Input current Quiescent supply current VCC Tamb VIH VOH VOH II ICC 14 to 31,2V -30 to +85C 7,5 to 44V 13 to 30V 2,0 to (VCC -0,7)V max. 10mA typ. 7,8mA PACKAGE OUTLINE 16-lead DIL ; plastic (SOT38). COMSET SEMICONDUCTORS 2/3 SAA1029 CHARACTERISTICS : At Tamb : -10 to +85C/ Vcc 14V to 32V PARAMETER SUPPLY VOLTAGE OUTPUT CLAMPING VOLTAGE INPUT VOLTAGE LOW INPUT VOLTAGE HIGH CURRENT CONSOMATION INPUT CURRENT CONDITIONS SYMB MIN 14 0 -0,15 +7,5 6,5 0,1 12 TYP MAX 32 30 +5 +44 12 UNIT V V V V mA mA V VCC VZ=VCC-1 VZ VIL VIH VCC :30V VCC :24V VCC :14V -IoH :3 mA VCC :30V -IoL :1,6 mA ICC IIL :IIH VoH 0,15 12,8 0,3 OUTPUT VOLTAGE HIGH OUTPUT VOLTAGE LOW OUTPUT SHORTCIRCULT CURRENT LOW SIGNAL HIGH SIGNAL PROPAGATION DELAYS GATE 2 HIGH TO LOW LOW TO HIGH GATE 1,2,3 HIGH TO LOW LOW TO HIGH VoL 0,9 1,4 V 10SL 10SH Tamb :25C VCC24V 6 10 18 mA mA C :33nF C :33nF tpHL tpLH 1,5 5,5 2,6 8,5 4 12 mD mS C :0nF C :0nF tPHL tPLH 1 1 2,1 4,4 9 9 MD MD COMSET SEMICONDUCTORS 3/3 |
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