9321

9321 DM9321 Dual 1-of-4 Decoder June 1989 9321 DM9321 Dual 1-of-4 Decoder General Description The 9321 consists of two independent multipurpose decoders each designed to accept two inputs and provide four mutually exclusive outputs In addition an active LOW enable input which gives demultiplexing capability is provided for each decoder Features Y Y Y Y Multifunction capability Mutually exclusive outputs Demultiplexing capability Active low enable for each decoder Connection Diagram Dual-In-Line Package Logic Symbol TL F 10209 – 2 TL F 10209 – 1 VCC e Pin 16 GND e Pin 8 Order Number 9321DMQB 9321FMQB or DM9321N See NS Package Number J16A N16E or W16A Pin Names Ea Eb A0a A1a A0b A1b O0a– O3a O0b– O3b Description Enable Inputs (Active LOW) Address Inputs Decoder Outputs (Active LOW) ( C1995 National Semiconductor Corporation TL F 10209 RRD-B30M105 Printed in U S A Absolute Maximum Ratings (Note) 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 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 b 55 C to a 125 C MIL COMM 0 C to a 70 C Storage Temperature Range b 65 C to a 150 C 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 (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 b10 mA VCC e Min IOH e Max VIL e Max VIH e Min VCC e Min IOL e Max VIH e Min VIL e Max 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 (Note 3) MIL COM b 20 b1 3 Min Typ (Note 1) Max b1 5 Units V V 24 04 1 40 b1 6 b 70 b3 7 V mA mA mA mA mA High Level Input Current Low Level Input Current Short Circuit Output Current Supply Current ICC 50 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 and the duration should not exceed one second Note 3 ICC is measured with all outputs open and all inputs grounded 2 Switching Characteristics VCC e a 5 0V Symbol tPLH tPHL tPLH tPHL Parameter TA e a 25 C (See Section 1 for test waveforms and output load) CL e 15 pF Min Max 20 21 14 18 ns ns Units Propagation Delay An to On Propagation Delay E to On Functional Description The 9321 consists of two separate decoders each designed to accept two binary weighted inputs and provide four mutually exclusive active LOW outputs as shown in the logic symbol Each decoder can be used as a 4-output demultiplexer by using the enable as a data input Truth Table (Each Decoder) Inputs E L L L L H A0 L H L H X A1 L L H H X O0 L H H H H Outputs O1 H L H H H O2 H H L H H O3 H H H L H H e HIGH Voltage Level L e LOW Voltage Level X e Immaterial Logic Diagram TL F 10209 – 3 3 4 Physical Dimensions inches (millimeters) 16-Lead Ceramic Dual-In-Line Package (J) Order Number 9321DMQB NS Package Number J16A 16 Lead Molded Dual-In-Line Package (N) Order Number DM9321N NS Package Number N16E 5 9321 DM9321 Dual 1-of-4 Decoder Physical Dimensions inches (millimeters) (Continued) 16-Lead Ceramic Flat Package (W) Order Number 9321FMQB 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