54LS164 NSC | Alldatasheet

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Y Gated (enable/disable) serial inputs Y Fully buffered clock and serial inputs Y Asynchronous clear Y Typical clock frequency 36 MHz Y Typical power dissipation 80 mW Y Alternate Military/Aerospace device (54LS164) is avail- able. Contact a National Semiconductor Sales Office/ Distributor for specifications. Connection Diagram Dual-In-Line Package TL/F/6398–1 Order Number 54LS164DMQB, 54LS164FMQB, 54LS164LMQB, DM54LS164J, DM54LS164W, DM74LS164M or DM74LS164N See NS Package Number E20A, J14A, M14A, N14A or W14B Function Table Inputs Outputs Clear Clock A B Q A QB ... Q H L X X X L L ... L HL X X Q A0 QB0 ... Q H0 H u H HHQ An ... Q Gn H u LX L Q An ... Q Gn H u XL L Q An ... Q Gn H e High Level (steady state), L e Low Level (steady state) X e Don’t Care (any input, including transitions) u e Transition from low to high level QA0,Q B0,Q H0 e The level of Q A,Q B,o rQ H, respectively, before the indicated steady-state input conditions were established. QAn,Q Gn e The level of Q A or Q G before the most recent u transition of the clock; indicates a one-bit shift. Logic Diagram TL/F/6398–2 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 7V Operating Free Air Temperature Range DM54LS and 54LS b55§Ct o a125§C DM74LS 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’’ tables will de- fine the conditions for actual device operation. Recommended Operating Conditions Symbol Parameter DM54LS164 DM74LS164 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 0.7 0.8 V IOH High Level Output Current b0.4 b0.4 mA IOL Low Level Output Current 4 8 mA fCLK Clock Frequency (Note 4) 0 25 0 25 MHz tW Pulse Width Clock 20 20 ns(Note 4) Clear 20 20 tSU Data Setup Time (Note 4) 17 17 ns tH Data Hold Time (Note 4) 5 5 ns tREL Clear Release Time (Note 4) 30 30 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 18 mA b1.5 V VOH High Level Output V CC e Min, I OH e Max DM54 2.5 3.4 VVoltage VIL e Max, V IH e Min DM74 2.7 3.4 VOL Low Level Output V CC e Min, I OL e Max DM54 0.25 0.4 Voltage V IL e Max, V IH e Min DM74 0.35 0.5 V IOL e 4 mA, V CC e Min DM74 0.25 0.4 II Input Current @ Max V CC e Max, V I e 7V 0.1 mAInput Voltage IIH High Level Input Current V CC e Max, V I e 2.7V 20 mA IIL Low Level Input Current V CC e Max, V I e 0.4V b0.4 mA IOS Short Circuit V CC e Max DM54 b20 b100 mAOutput Current (Note 2) DM74 b20 b100 ICC Supply Current V CC e Max (Note 3) 16 27 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, the SERIAL input grounded, the CLOCK input at 2.4V, and a momentary ground, then 4.5V, applied to the CLEAR input. 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 2k X Symbol Parameter To (Output) CL e 15 pF C L e 50 pF Units Min Max Min Max fMAX Maximum Clock Frequency 25 MHz tPLH Propagation Delay Time Clock to 27 30 nsLow to High Level Output Output tPHL Propagation Delay Time Clock to 32 40 nsHigh to Low Level Output Output tPHL Propagation Delay Time Clear to 36 45 nsHigh to Low Level Output Output Timing Diagram TL/F/6398–3

Physical Dimensions inches (millimeters) Ceramic Leadless Chip Carrier Package (E) Order Number 54LS164LMQB 14-Lead Ceramic Dual-In-Line Package (J) Order Number 54LS164DMQB or DM54LS164J

Physical Dimensions inches (millimeters) (Continued) 14-Lead Small Outline Molded Package (M) Order Number DM74LS164M 14-Lead Molded Dual-In-Line Package (N) Order Number DM74LS164N

54LS164/DM54LS164/DM74LS164 8-Bit Serial In/Parallel Out Shift Registers Physical Dimensions inches (millimeters) (Continued) 14-Lead Ceramic Flat Package (W) Order Number 54LS164FMQB or DM54LS164W 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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