9324

9324 DM9324 5-Bit Comparator June 1989 9324 DM9324 5-Bit Comparator General Description The 9324 expandable comparators provide comparison between two 5-bit words and give three outputs ‘‘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 E A0–A4 B0–B4 AkB AlB AeB Description Enable Input (Active LOW) Word A Parallel Inputs Word B Parallel Inputs A Less than B Output (Active HIGH) A Greater than B Output (Active HIGH) A Equal to B Output (Active HIGH) C1995 National Semiconductor Corporation TL F 9792 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 Input Voltage Operating Free Air Temperature Range Military Commercial Storage Temperature Range 7V 5 5V b 55 C to a 125 C 0 C to a 70 C b 65 C to a 150 C Note The ‘‘Absolute Maximum Ratings’’ are those values beyond which the safety of the device cannot be guaranteed 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 VCC VIH VIL IOH IOL TA Parameter Min Supply Voltage High Level Input Voltage Low Level Input Voltage High Level Output Current Low Level Output Current Free Air Operating Temperature b 55 Military Nom 5 Max 55 Min 4 75 2 08 b0 8 Commercial Nom 5 Max 5 25 Units V V 08 b0 8 45 2 V mA mA C 16 125 0 16 70 Electrical Characteristics Over recommended operating free air temperature range (unless otherwise noted) Symbol VI VOH VOL II IIH IIL IOS Parameter Input Clamp Voltage High Level Output Voltage Low Level Output Voltage Input Current Input Voltage Max Conditions VCC e Min II e b12 mA VCC e Min IOH e Max VIL e Max VCC e Min IOL e Max VIH e Min VCC e Max VI e 5 5V VCC e Max VI e 2 4V VCC e Max VI e 0 4V VCC e Max (Note 2) VCC e Max MIL COM b 20 b 20 Min Typ (Note 1) Max b1 5 Units V V 24 34 02 04 1 80 b3 2 b 70 b 70 V mA mA mA mA mA High Level Input Current Low Level Input Current Short Circuit Output Current Supply Current ICC 81 Note 1 All typicals are at VCC e 5V TA e 25 C Note 2 Not more than one output should be shorted at a time 2 Switching Characteristics VCC e a 5 0V TA e a 25 C (See Section 1 for waveforms and load configurations) Symbol tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL Parameter Min Propagation Delay E to A e B Propagation Delay An Bn to A l B Propagation Delay An Bn to A k B Propagation Delay An Bn to A e B CL e 15 pF Max 14 14 25 22 26 21 30 32 ns ns ns ns Units Functional Description The ’24 5-bit comparators use combinational circuitry to directly 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 E H L L L An Bn AkB L L L H Outputs AlB L L H L AeB L H L L X X Word A e Word B Word A l Word B Word B l Word A 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 3 Logic Diagram TL F 9792 – 3 4 Physical Dimensions inches (millimeters) 16-Lead Ceramic Dual-In-Line Package (J) Order Number 9324DMQB NS Package Number J16A 16-Lead Molded Dual-In-Line Package (N) Order Number DM9324N NS Package Number N16E 5 9324 DM9324 5-Bit Comparator Physical Dimensions inches (millimeters) (Continued) 16-Lead Ceramic Flat Package (W) Order Number 9324FMQB NS Package Number W16A 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 systems which (a) are intended for surgical implant into the body or (b) support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in a significant injury to the user National Semiconductor Corporation 1111 West Bardin Road Arlington TX 76017 Tel 1(800) 272-9959 Fax 1(800) 737-7018 2 A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system or to affect its safety or effectiveness National Semiconductor Europe Fax (a49) 0-180-530 85 86 Email cnjwge tevm2 nsc com Deutsch Tel (a49) 0-180-530 85 85 English Tel (a49) 0-180-532 78 32 Fran ais Tel (a49) 0-180-532 93 58 Italiano Tel (a49) 0-180-534 16 80 National Semiconductor Hong Kong Ltd 13th Floor Straight Block Ocean Centre 5 Canton Rd Tsimshatsui Kowloon Hong Kong Tel (852) 2737-1600 Fax (852) 2736-9960 National Semiconductor Japan Ltd Tel 81-043-299-2309 Fax 81-043-299-2408 National does not assume any responsibility for use of any circuitry described no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications