9321 NSC | Alldatasheet

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Features

Y Multifunction capability Y Mutually exclusive outputs Y Demultiplexing capability Y Active low enable for each decoder Connection Diagram Dual-In-Line Package TL/F/10209–1 Order Number 9321DMQB, 9321FMQB or DM9321N See NS Package Number J16A, N16E or W16A Logic Symbol TL/F/10209–2 VCC e Pin 16 GND e Pin 8 Pin Names Description Ea, E b Enable Inputs (Active LOW) A0a, A1a, A0b, A1b Address Inputs O 0a–O 3a Decoder Outputs (Active LOW)O0b–O 3b ( C1995 National Semiconductor Corporation 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 MIL b55§Ct o a125§C COMM 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 22 VVoltage VIL Low Level Input 0.8 0.8 VVoltage IOH High Level Output b0.8 b0.8 mACurrent IOL Low Level Output 16 16 mACurrent TA Free Air Operating b55 125 0 70 §CTemperature Electrical Characteristics over recommended operating free air temperature (unless otherwise noted) Symbol Parameter Conditions Min Typ Max Units(Note 1) VI Input Clamp Voltage V CC e Min, I I eb 10 mA b1.5 V VOH High Level Output V CC e Min, I OH e Max, 2.4 VVoltage V IL e Max, V IH e Min VOL Low Level Output V CC e Min, I OL e Max, 0.4 VVoltage V IH e Min, V IL e Max II Input Current @ Max V CC e Max, V I e 5.5V 1m AInput Voltage IIH High Level Input V CC e Max, V I e 2.4V 40 mACurrent IIL Low Level Input V CC e Max, V I e 0.4V b1.6 mACurrent IOS Short Circuit V CC e Max MIL b20 b70 mAOutput Current (Note 2) COM b1.3 b3.7 ICC Supply Current V CC e Max (Note 3) 50 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, and the duration should not exceed one second. Note 3: ICC is measured with all outputs open and all inputs grounded.

Switching Characteristics VCC ea 5.0V, T A ea 25§C (See Section 1 for test waveforms and output load) Symbol Parameter CL e 15 pF Units Min Max tPLH Propagation Delay, An to O n2 0 nstPHL 21 tPLH Propagation Delay, E to O n1 4 nstPHL 18 Functional Description The 9321 consists of two separate decoders each designed to accept two binary weighted inputs and provide four mutu- ally exclusive active LOW outputs as shown in the logic symbol. Each decoder can be used as a 4-output demulti- plexer by using the enable as a data input. Truth Table (Each Decoder) Inputs Outputs E A0 A1 O 0O 1O 2O 3 L L L LHHH L HLHLHH L LH HHLH L HHHHHL H XXHHHH H e HIGH Voltage Level L e LOW Voltage Level X e Immaterial Logic Diagram TL/F/10209–3

Physical Dimensions inches (millimeters) 16-Lead Ceramic Dual-In-Line Package (J) Order Number 9321DMQB

16 Lead Molded Dual-In-Line Package (N)

9321/DM9321 Dual 1-of-4 Decoder Physical Dimensions inches (millimeters) (Continued) 16-Lead Ceramic Flat Package (W) Order Number 9321FMQB 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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