5442A

5442A DM5442A DM7442A BCD to Decimal Decoders June 1989 5442A DM5442A DM7442A BCD to Decimal Decoders General Description These BCD-to-decimal decoders consist of eight inverters and ten four-input NAND gates The inverters are connected in pairs to make BCD input data available for decoding by the NAND gates Full decoding of input logic ensures that all outputs remain off for all invalid (10–15) input conditions Features Y Y Y Y Y Y Diode clamped inputs Also for application as 4-line-to-16-line decoders 3-lineto-8-line decoders All outputs are high for invalid input conditions Typical power dissipation 140 mW Typical propagation delay 17 ns Alternate Military Aerospace device (5442A) is available Contact a National Semiconductor Sales Office Distributor for specifications Connection Diagram Dual-In-Line Package TL F 6516 – 1 Order Number 5442ADMQB 5442AFMQB DM5442AJ DM5442AW or DM7442AN See NS Package Number J16A N16E or W16A Function Table No D 0 1 2 3 4 5 6 7 8 9 I N V A L I D L L L L L L L L H H H H H H H H BCD Input C L L L L H H H H L L L L H H H H B L L H H L L H H L L H H L L H H A L H L H L H L H L H L H L H L H 0 L H H H H H H H H H H H H H H H 1 H L H H H H H H H H H H H H H H 2 H H L H H H H H H H H H H H H H Decimal Output 3 H H H L H H H H H H H H H H H H 4 H H H H L H H H H H H H H H H H 5 H H H H H L H H H H H H H H H H 6 H H H H H H L H H H H H H H H H 7 H H H H H H H L H H H H H H H H 8 H H H H H H H H L H H H H H H H 9 H H H H H H H H H L H H H H H H H e High Level L e Low Level C1995 National Semiconductor Corporation TL F 6516 RRD-B30M105 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 b 55 C to a 125 C DM54 and 54 DM74 0 C to a 70 C Storage Temperature Range 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 DM5442A Nom 5 Max 55 08 b0 8 DM7442A Min 4 75 2 08 b0 8 Units Max 5 25 V V V mA mA C Nom 5 45 2 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 ICC 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 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) DM54 DM74 DM54 DM74 b 20 b 18 Min Typ (Note 1) Max b1 5 Units V V 24 34 02 04 1 40 b1 6 b 55 b 55 V mA mA mA mA mA High Level Input Current Low Level Input Current Short Circuit Output Current Supply Current 28 28 41 56 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 Note 3 ICC is measured with all outputs open and all inputs grounded 2 Switching Characteristics at VCC e 5V and TA e 25 C (See Section 1 for Test Waveforms and Output Load) Symbol tPHL Parameter Propagation Delay Time High to Low Level Output from A B C or D through 2 Levels of Logic Propagation Delay Time High to Low Level Output from A B C or D through 3 Levels of Logic Propagation Delay Time Low to High Level Output from A B C or D through 2 Levels of Logic Propagation Delay Time Low to High Level Output from A B C or D through 3 Levels of Logic Conditions CL e 15 pF RL e 400X Min Max Units 25 ns tPHL 30 ns tPLH 25 ns tPLH 30 ns Logic Diagram Tl F 6516 – 2 3 4 Physical Dimensions inches (millimeters) 16-Lead Ceramic Dual-In-Line Package (J) Order Number 5442ADMQB or DM5442AJ NS Package Number J16A 16-Lead Molded Dual-In-Line Package (N) Order Number DM7442AN NS Package Number N16E 5 5442A DM5442A DM7442A BCD to Decimal Decoders Physical Dimensions inches (millimeters) (Continued) 16-Lead Ceramic Flat Package (W) Order Number 5442AFMQB or DM5442AW 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