9324DMQB

9324 NSC | Alldatasheet

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9324/DM9324 5-Bit Comparator June 1989 9324/DM9324 5-Bit Comparator General Description The 9324 expandable comparators provide comparison be- tween two 5-bit words and give three outputsБ‘less than’’, ‘‘greater than’’ and ‘‘equal to’’. A HIGH on the active LOW Enable Input forces all three outputs LOW. Connection Diagram Dual-In-Line Package TL/F/9792–1 Order Number 9324DMQB, 9324FMQB, or DM9324N See NS Package Number J16A, N16E or W16A Pin Names Description E Enable Input (Active LOW) A0–A4 Word A Parallel Inputs B0–B4 Word B Parallel Inputs A k B A Less than B Output (Active HIGH) A l B A Greater than B Output (Active HIGH) A e B A Equal to B Output (Active HIGH) C1995 National Semiconductor Corporation RRD-B30M115/Printed in U. S. A.

Absolute Maximum Ratings (Note) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/Distributors for availability and specifications. Supply Voltage 7V Input Voltage 5.5V Operating Free Air Temperature Range Military b55§Ct o a125§C Commercial 0 §Ct o a70§C Storage Temperature Range b65§Ct o a150§C Note: The ‘‘Absolute Maximum Ratings’’ are those values beyond which the safety of the device cannot be guaran- teed. The device should not be operated at these limits. The parametric values defined in the ‘‘Electrical Characteristics’’ table are not guaranteed at the absolute maximum ratings. The ‘‘Recommended Operating Conditions’’ table will define the conditions for actual device operation. Recommended Operating Conditions Symbol Parameter Military Commercial Units Min Nom Max Min Nom Max VCC Supply Voltage 4.5 5 5.5 4.75 5 5.25 V VIH High Level Input Voltage 2 2 V VIL Low Level Input Voltage 0.8 0.8 V IOH High Level Output Current b0.8 b0.8 mA IOL Low Level Output Current 16 16 mA TA Free Air Operating Temperature b55 125 0 70 §C Electrical Characteristics Over recommended operating free air temperature range (unless otherwise noted) Symbol Parameter Conditions Min Typ Max Units(Note 1) VI Input Clamp Voltage V CC e Min, I I eb 12 mA b1.5 V VOH High Level Output Voltage V CC e Min, I OH e Max 2.4 3.4 VVIL e Max VOL Low Level Output Voltage V CC e Min, I OL e Max 0.2 0.4 VVIH e Min II Input Current @ Max V CC e Max, V I e 5.5V 1m AInput Voltage IIH High Level Input Current V CC e Max, V I e 2.4V 80 mA IIL Low Level Input Current V CC e Max, V I e 0.4V b3.2 mA IOS Short Circuit V CC e Max MIL b20 b70 mAOutput Current (Note 2) COM b20 b70 ICC Supply Current V CC e Max 81 mA Note 1: All typicals are at V CC e 5V, T A e 25§C. Note 2: Not more than one output should be shorted at a time.

VCC ea 5.0V, T A ea 25§C (See Section 1 for waveforms and load configurations) Symbol Parameter CL e 15 pF Units Min Max tPLH Propagation Delay 14 nstPHL E to A e B1 4 tPLH Propagation Delay 25 nstPHL An,B n to A l B2 2 tPLH Propagation Delay 26 nstPHL An,B n to A k B2 1 tPLH Propagation Delay 30 nstPHL An,B n to A e B3 2 Functional Description The ’24 5-bit comparators use combinational circuitry to di- rectly generate ‘‘A greater than B’’ and ‘‘A less than B’’ outputs. As evident from the logic diagram, these outputs are generated in only three gate delays. The ‘‘A equals B’’ output is generated in one additional gate delay by decoding the ‘‘A neither less than nor greater than B’’ condition with a NOR gate. All three outputs are activated by the active LOW Enable Input (E Tying the A l B output from one device into an A input on another device and the A k B output into the corresponding B input permits easy expansion. The A4 and B4 inputs are the most significant inputs and A0, B0 the least significant. Thus if A4 is HIGH and B4 is LOW, the A l B output will be HIGH regardless of all other inputs except E . Truth Table Inputs Outputs E An Bn A k BA l BA e B HX X L L L L Word A e Word B L L H L Word A l Word B L H L L Word B l Word A H L L H e HIGH Voltage Level L e LOW Voltage Level X e Immaterial Logic Symbol TL/F/9792–2 VCC e Pin 16 GND e Pin 6

TL/F/9792–3

Physical Dimensions inches (millimeters) 16-Lead Ceramic Dual-In-Line Package (J) Order Number 9324DMQB 16-Lead Molded Dual-In-Line Package (N) Order Number DM9324N

9324/DM9324 5-Bit Comparator Physical Dimensions inches (millimeters) (Continued) 16-Lead Ceramic Flat Package (W) Order Number 9324FMQB LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or 2. A critical component is any component of a life systems which, (a) are intended for surgical implant support device or system whose failure to perform can into the body, or (b) support or sustain life, and whose be reasonably expected to cause the failure of the life failure to perform, when properly used in accordance support device or system, or to affect its safety or with instructions for use provided in the labeling, can effectiveness. be reasonably expected to result in a significant injury to the user. National Semiconductor National Semiconductor National Semiconductor National Semiconductor Corporation Europe Hong Kong Ltd. Japan Ltd.

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