54173 NSC | Alldatasheet

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Y TRI-STATE outputs interface directly with system bus Y Gated output control lines for enabling or disabling the outputs Y Fully independent clock elminates restrictions for oper- ating in one of two modes: Parallel load Do nothing (hold) Y For application as bus buffer registers Y Typical propagation delay 18 ns Y Typical frequency 30 MHz Y Typical power dissipation 250 mW Y Alternate Military/Aerospace device (54173) is avail- able. Contact a National Semiconductor Sales Office/ Distributor for specifications. Connection Diagram Dual-In-Line Package TL/F/6556–1 Order Number 54173DMQB, 54173FMQB, DM54173J, DM54173W or DM74173N See NS Package Number J16A, N16E or W16A Function Table Inputs Output Clear Clock Data Enable Data Q G1 G2 D HX X X X L LL X X X Q 0 L u HX X Q 0 L u XH X Q 0 L u LL L L L u LL H H When either M or N (or both) is (are) high the output is disabled to the high-impedance state; however, sequential operation of the flip-flops is not affected. H e high level (steady state) L e low level (steady state) u e low-to-high level transition X e don’t care (any input including transitions) Q0 e the level of Q before the indicated steady state input conditions were established TRI-STATEÉ is a registered trademark of National Semiconductor Corporation. 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 DM54 and 54 b55§Ct o a125§C DM74 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 DM54173 DM74173 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 b2 b5.2 mA IOL Low Level Output Current 16 16 mA fCLK Clock Frequency (Note 4) 0 25 0 25 MHz tW Pulse Width Clock 20 20 ns(Note 4) Clear 20 20 tSU Setup Time Enable 17 17 ns(Note 4) Data 10 10 tH Hold Time Enable 2 2 ns(Note 4) Data 10 10 tREL Clear Release Time (Note 4) 10 10 ns 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 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 Current V CC e Max, V I e 2.4V 40 mA IIL Low Level Input Current V CC e Max, V I e 0.4V b1.6 mA IOZH Off-State Output Current with High V CC e Max, V O e 2.4V 40 mALevel Output Voltage Applied V IH e Min, V IL e Max IOZL Off-State Output Current with Low V CC e Max, V O e 0.4V b40 mALevel Output Voltage Applied V IH e Min, V IL e Max IOS Short Circuit V CC e Max DM54 b30 b70 mAOutput Current (Note 2) DM74 b30 b70 ICC Supply Current V CC e Max (Note 3) 50 72 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. Note 3: ICC is measured with all outputs open, CLEAR grounded after a momentary connection to 4.5V: N, G1, G2 and all DATA inputs grounded: and the CLOCK input and M input at 4.5V. Note 4: TA e 25§C and V CC e 5V.

Switching Characteristics at V CC e 5V and T A e 25§C (See Section 1 for Test Waveforms and Output Load) From (Input) RL e 400X Symbol Parameter To (Output) C L e 5p F C L e 50 pF Units Min Max Min Max fMAX Maximum Clock Frequency 25 MHz tPLH Propagation Delay Time Clock to 25 nsLow to High Level Output Output tPHL Propagation Delay Time Clock to 28 nsHigh to Low Level Output Output tPHL Propagation Delay Time Clear to 27 nsHigh to Low Level Output Output tPZH Output Enable Time Output Control 73 0 n sto High Level Output to Q tPZL Output Enable Time Output Control 73 0 n sto Low Level Output to Q tPHZ Output Disable Time Output Control 31 4 n sfrom High Level Output to Q tPLZ Output Disable Time Output Control 32 0 n sfrom Low Level Output to Q

TL/F/6556–2

Physical Dimensions inches (millimeters) 16-Lead Ceramic Dual-In-Line Package (J) Order Number 54173DMQB or DM54173J 16-Lead Molded Dual-In-Line Package (N) Order Number DM74173N

54173/DM54173/DM74173 TRI-STATE Quad D Registers Physical Dimensions inches (millimeters) (Continued) 16-Lead Ceramic Flat Package (W) Order Number 54173FMQB or DM54173W 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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