54AC174/54ACT174 Hex D Flip-Flop with Master Reset

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1 54AC174/54ACT174 Hex D Flip-Flop with Master Reset General Description The AC/ ACT174 is a high-speed hex D flip-flop. The device is used primarily as a 6-bit edge-triggered storage register. The information on the D inputs is transferred to storage during the LOW-to-HIGH clock transition. The device has a Master Reset to simultaneously clear all flip-flops. Features n I CC reduced by 50% n Outputs source/sink 24 ma Logic Symbols IEEE/IEC n ACT174 has TTL-compatible inputs n Standard Microcircuit Drawing (SMD) 54AC174: ACT174: n 54AC174 now qualified to 300Krad RHA designation, refer to the SMD for more information Pin Names D 0 D 5 CP MR Q 0 Q 5 Description Data Inputs Clock Pulse Input Master Reset Input Outputs July AC174/54ACT174 Hex D Flip-Flop with Master Reset FACT is a trademark of Fairchild Semiconductor Corporation National Semiconductor Corporation DS

2 54AC174/54ACT174 Connection Diagrams Pin Assignment for DIP and Flatpak Pin Assignment for LCC Functional Description The AC/ ACT174 consists of six edge-triggered D flip-flops with individual D inputs and Q outputs. The Clock (CP) and Master Reset (MR) are common to all flip-flops. Each D input s state is transferred to the corresponding flip-flop s output following the LOW-to-HIGH Clock (CP) transition. A LOW input to the Master Reset (MR) will force all outputs LOW independent of Clock or Data inputs. The AC/ ACT174 is useful for applications where the true output only is required and the Clock and Master Reset are common to all storage elements. Truth Table Inputs Output MR CP D Q L X X L H N H H H N L L H L X Q H = HIGH Voltage Level L = LOW Voltage Level N = LOW-to-HIGH Transition X = Immaterial Logic Diagram Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays

3 Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage (V CC ) 0.5V to +7.0V DC Input Diode Current (I IK ) V I = 0.5V 20 ma V I =V CC + 0.5V +20 ma DC Input Voltage (V I ) 0.5V to V CC + 0.5V DC Output Diode Current (I OK ) V O = 0.5V 20 ma V O =V CC + 0.5V +20 ma DC Output Voltage (V O ) 0.5V to V CC + 0.5V DC Output Source or Sink Current (I O ) ±50 ma DC V CC or Ground Current per Output Pin (I CC or I GND ) ±50 ma Storage Temperature (T STG ) 65 C to +150 C Junction Temperature (T J ) CDIP 175 C Recommended Operating Conditions Supply Voltage (V CC ) AC 2.0V to 6.0V ACT 4.5V to 5.5V Input Voltage (V I ) 0VtoV CC Output Voltage (V O ) 0VtoV CC Operating Temperature (T A ) 54AC/ACT 55 C to +125 C Minimum Input Edge Rate ( V/ t) AC Devices V IN from 30% to 70% of V CC V 3.3V, 4.5V, 5.5V 125 mv/ns Minimum Input Edge Rate ( V/ t) ACT Devices V IN from 0.8V to 2.0V V 4.5V, 5.5V 125 mv/ns Note 1: Absolute maximum ratings are those values beyond which damage to the device may occur. The databook specifications should be met, without exception, to ensure that the system design is reliable over its power supply, temperature, and output/input loading variables. National does not recommend operation of FACT circuits outside databook specifications. 54AC174/54ACT174 DC Characteristics for AC Family Devices 54AC Symbol Parameter V CC T A = Units Conditions (V) 55 C to +125 C Guaranteed Limits V IH Minimum High Level V OUT = 0.1V Input Voltage V or V CC 0.1V V IL Maximum Low Level V OUT = 0.1V Input Voltage V or V CC 0.1V V OH Minimum High Level I OUT = 50 µa Output Voltage V (Note 2) V IN =V IL or V IH I OH = 12 ma V I OH = 24 ma I OH = 24 ma V OL Maximum Low Level I OUT =50µA Output Voltage V (Note 2) V IN =V IL or V IH I OL =12mA V I OL =24mA I OL =24mA I IN Maximum Input 5.5 ±1.0 µa V I =V CC, GND Leakage Current 3

4 54AC174/54ACT174 DC Characteristics for AC Family Devices (Continued) 54AC Symbol Parameter V CC T A = Units Conditions (V) 55 C to +125 C Guaranteed Limits I OLD Minimum Dynamic ma V OLD = 1.65V Max I OHD Output Current (Note 3) ma V OHD = 3.85V Min I CC Maximum Quiescent µa V IN =V CC Supply Current or GND Note 2: All outputs loaded; thresholds on input associated with output under test. Note 3: Maximum test duration 2.0 ms, one output loaded at a time. Note 4: I IN and I 3.0V are guaranteed to be less than or equal to the respective 5.5V V CC. I CC for 25 C is identical to 25 C. DC Characteristics for ACT Family Devices 54ACT Symbol Parameter V CC T A = Units Conditions (V) 55 C to +125 C Guaranteed Limits V IH Minimum High Level V V OUT = 0.1V Input Voltage or V CC 0.1V V IL Maximum Low Level V V OUT = 0.1V Input Voltage or V CC 0.1V V OH Minimum High Level V I OUT = 50 µa Output Voltage (Note 5) V IN =V IL or V IH V I OH = 24 ma I OH = 24 ma V OL Maximum Low Level V I OUT =50µA Output Voltage (Note 5) V IN =V IL or V IH V I OL =24mA I OL =24mA I IN Maximum Input 5.5 ±1.0 µa V I =V CC, GND Leakage Current I CCT Maximum ma V I =V CC 2.1V I CC /Input I OLD Minimum Dynamic ma V OLD = 1.65V Max I OHD Output Current (Note 6) ma V OHD = 3.85V Min I CC Maximum Quiescent µa V IN =V CC Supply Current or GND Note 5: All outputs loaded; thresholds on input associated with output under test. Note 6: Maximum test duration 2.0 ms, one output loaded at a time. Note 7: I CC for 25 C is identical to 25 C. 4

5 AC Electrical Characteristics V CC 54AC Symbol Parameter (V) T A = 55 C to +125 C Fig. Units (Note 8) C L = 50 pf No. Min Max f max Maximum Clock MHz Frequency t PLH Propagation Delay ns CP to Q n t PHL Propagation Delay ns CP to Q n t PHL Propagation Delay ns MR to Q n AC174/54ACT174 Note 8: Voltage Range 3.3 is 3.3V ±0.3V Voltage Range 5.0 is 5.0V ±0.5V AC Operating Requirements 54AC V CC T A = 55 C Fig. Symbol Parameter (V) to +125 C Units No. (Note 9) C L =50pF Guaranteed Minimum t s Setup Time, HIGH or LOW ns D n to CP t h Hold Time, HIGH or LOW ns D n to CP t w MR Pulse Width, LOW ns t w CP Pulse Width ns t rec Recovery Time ns MR to CP Note 9: Voltage Range 3.3 is 3.3V ±0.3V Voltage Range 5.0 is 5.0V ±0.5V AC Electrical Characteristics 54ACT V CC T A = 55 C to +125 C Symbol Parameter (V) Units C (Note 10) L =50pF Min Max f max Maximum Clock MHz Frequency t PLH Propagation Delay ns Fig. No. CP to Q n t PHL Propagation Delay ns CP to Q n t PHL Propagation Delay ns MR to Q n Note 10: Voltage Range 5.0 is 5.0V ±0.5V 5

6 54AC174/54ACT174 AC Operating Requirements 54ACT V CC T A = 55 C Fig. Symbol Parameter (V) to +125 C Units No. (Note 11) C L =50pF Guaranteed Minimum t s Setup Time, HIGH or LOW ns D n to CP t h Hold Time, HIGH or LOW ns D n to CP t w MR Pulse Width, LOW ns t w CP Pulse Width, HIGH OR LOW ns t rec Recovery Time ns MR to CP Note 11: Voltage Range 5.0 is 5.0V ±0.5V Capacitance Symbol Parameter Typ Units Conditions C IN Input Capacitance 4.5 pf V CC = OPEN C PD Power Dissipation 85.0 pf V CC = 5.0V Capacitance 6

7 Physical Dimensions inches (millimeters) unless otherwise noted 54AC174/54ACT Terminal Ceramic Leadless Chip Carrier (L) NS Package Number E20A 16-Lead Ceramic Dual-In-Line Package (D) NS Package Number J16A 7

8 54AC174/54ACT174 Hex D Flip-Flop with Master Reset Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 16-Lead Ceramic Flatpak (F) 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 AND GENERAL COUNSEL 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. 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 Americas Customer Support Center new.feedback@nsc.com Tel: National Semiconductor Europe Customer Support Center Fax: +49 (0) europe.support@nsc.com Deutsch Tel: +49 (0) English Tel: +44 (0) Français Tel: +33 (0) National Semiconductor Asia Pacific Customer Support Center ap.support@nsc.com National Semiconductor Japan Customer Support Center Fax: jpn.feedback@nsc.com Tel: 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.

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