54AC/74AC374 # 54ACT/74ACT374 Octal D Flip-Flop with TRI-STATEE Outputs Y General Description Y The 'AC/'ACT374 is a high-speed, low-power octal D-type flip-flop featuring separate D-type inputs for each flip-flop and TRI-STATE outputs for bus-oriented applications. A buffered Clock (CP) and Output Enable (OE) are common to all flip-flops. Features Y Y Y Y Y Y Y ICC and IOZ reduced by 50% Buffered positive edge-triggered clock TRI-STATE outputs for bus-oriented applications Y Y Commercial Military Outputs source/sink 24 mA See '273 for reset version See '377 for clock enable version See '373 for transparent latch version See '574 for broadside pinout version See '564 for broadside pinout version with inverted outputs 'ACT374 has TTL-compatible inputs Standard Military Drawing (SMD) 'AC374: 5962-87694 'ACT374: 5962-87631 Package Number Package Description 74ACT374PC N20A 20-Lead Molded Dual-In-Line (0.300x Wide) 74ACT374SC (Note 1) M20B 20-Lead Molded Small Outline (0.300x Wide), JEDEC 74ACT374SJ (Note 1) M20D 20-Lead Molded Small Outline, EIAJ Type II 74ACT374MTC (Note 1) MTC20 20-Lead Molded Thin Shrink Small Outline Package, JEDEC 74ACT374MSA (Note 1) MSA20 20-Lead Molded Small Shrink Outline Package, (EIAJ SSOP) 54ACT374DM (Note 2) J20A 20-Lead Ceramic Dual-In-Line 54ACT374FM (Note 2) W20A 20-Lead Cerpak 54ACT374LM (Note 2) E20A 20-Lead Ceramic Leadless Chip Carrier, Type C Note 1: Devices also available in 13x Tape and Reel. Use suffix SCX, SJX, and MTCX. Note 2: Military grade device with environmental and burn-in processing, use suffix DMQB, FMQB and LMQB. Logic Symbols Connection Diagrams IEEE/IEC Pin Assignment for DIP, Flatpak, SSOP, SOIC and TSSOP TL/F/9959-1 Pin Names D0 - D7 CP OE O0 - O7 Description Data Inputs Clock Pulse Input TRI-STATE Output Enable Input TRI-STATE Outputs TL/F/9959 - 3 TL/F/9959 - 2 Pin Assignment for LCC TRI-STATEE is a registered trademark of National Semiconductor Corporation. FACTTM is a trademark of National Semiconductor Corporation. C1996 National Semiconductor Corporation TL/F/9959 TL/F/9959 - 4 RRD-B30M76/Printed in U. S. A. http://www.national.com 54AC/74AC374 # 54ACT/74ACT374 Octal D Flip-Flop with TRI-STATE Outputs June 1996 Functional Description Truth Table The 'AC/'ACT374 consists of eight edge-triggered flip-flops with individual D-type inputs and TRI-STATE true outputs. The buffered clock and buffered Output Enable are common to all flip-flops. The eight flip-flops will store the state of their individual D inputs that meet the setup and hold time requirements on the LOW-to-HIGH Clock (CP) transition. With the Output Enable (OE) LOW, the contents of the eight flip-flops are available at the outputs. When the OE is HIGH, the outputs go to the high impedance state. Operation of the OE input does not affect the state of the flip-flops. Inputs Outputs Dn CP OE On H L X L L X L L H H L Z H e HIGH Voltage Level L e LOW Voltage Level X e Immaterial Z e High Impedance L e LOW-to-HIGH Transition Logic Diagram TL/F/9959 - 5 Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays. http://www.national.com 2 Absolute Maximum Rating (Note 1) Recommended Operating Conditions If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/Distributors for availability and specifications. Supply Voltage (VCC) DC Input Diode Current (IIK) VI e b0.5V VI e VCC a 0.5V DC Input Voltage (VI) DC Output Diode Current (IOK) VO e b0.5V VO e VCC a 0.5V DC Output Voltage (VO) DC Output Source or Sink Current (IO) DC VCC or Ground Current per Output Pin (ICC or IGND) Storage Temperature (TSTG) Junction Temperature (TJ) CDIP PDIP Supply Voltage (VCC) 'AC 'ACT Input Voltage (VI) b 0.5V to a 7.0V b 20 mA a 20 mA 2.0V to 6.0V 4.5V to 5.5V 0V to VCC 0V to VCC Output Voltage (VO) Operating Temperature (TA) 74AC/ACT 54AC/ACT b 0.5V to VCC a 0.5V b 20 mA a 20 mA b 40 C to a 85 C b 55 C to a 125 C Minimum Input Edge Rate (DV/Dt) 'AC Devices VIN from 30% to 70% of VCC VCC @ 3.3V, 4.5V, 5.5V Minimum Input Edge Rate (DV/Dt) 'ACT Devices VIN from 0.8V to 2.0V VCC @ 4.5V, 5.5V b 0.5V to VCC a 0.5V g 50 mA g 50 mA b 65 C to a 150 C 125 mV/ns 125 mV/ns 175 C 140 C 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 TM circuits outside databook specifications. DC Characteristics for 'AC Family Devices Symbol Parameter VCC (V) 74AC 54AC 74AC TA e a 25 C TA e b 55 C to a 125 C TA e b 40 C to a 85 C Typ VIH VIL VOH IIN Conditions Guaranteed Limits Minimum High Level Input Voltage 3.0 4.5 5.5 1.5 2.25 2.75 2.1 3.15 3.85 2.1 3.15 3.85 2.1 3.15 3.85 V VOUT e 0.1V or VCC b 0.1V Maximum Low Level Input Voltage 3.0 4.5 5.5 1.5 2.25 2.75 0.9 1.35 1.65 0.9 1.35 1.65 0.9 1.35 1.65 V VOUT e 0.1V or VCC b 0.1V Minimum High Level Output Voltage 3.0 4.5 5.5 2.99 4.49 5.49 2.9 4.4 5.4 2.9 4.4 5.4 2.9 4.4 5.4 V 2.56 3.86 4.86 2.4 3.7 4.7 2.46 3.76 4.76 V 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 V 3.0 4.5 5.5 0.36 0.36 0.36 0.50 0.50 0.50 0.44 0.44 0.44 V 5.5 g 0.1 g 1.0 g 1.0 mA 3.0 4.5 5.5 VOL Units Maximum Low Level Output Voltage Maximum Input Leakage Current 3.0 4.5 5.5 0.002 0.001 0.001 IOUT e b50 mA *VIN e VIL or VIH b 12 mA b 24 mA IOH b 24 mA IOUT e 50 mA *VIN e VIL or VIH 12 mA IOL 24 mA 24 mA VI e VCC, GND *All outputs loaded; thresholds on input associated with output under test. 3 http://www.national.com DC Characteristics for 'AC Family Devices (Continued) Symbol Parameter VCC (V) 74AC 54AC 74AC TA e a 25 C TA e b 55 C to a 125 C TA e b 40 C to a 85 C Typ Maximum TRI-STATEE Current IOZ Minimum Dynamic Output Current IOLD IOHD ICC Maximum Quiescent Supply Current Units Conditions Guaranteed Limits g 5.0 g 2.5 mA VI (OE) e VIL, VIH VI e VCC, GND VO e VCC, GND 5.5 50 75 mA VOLD e 1.65V Max 5.5 b 50 b 75 mA VOHD e 3.85V Min 80.0 40.0 mA VIN e VCC or GND 5.5 g 0.25 5.5 4.0 Maximum test duration 2.0 ms, one output loaded at a time. Note: IIN and ICC @ ICC for 54AC 3.0V are guaranteed to be less than or equal to the respective limit @ 25 C is identical to 74AC @ @ 5.5V VCC. 25 C. DC Characteristics for 'ACT Family Devices Symbol Parameter VCC (V) 74ACT 54ACT 74ACT TA e a 25 C TA e b 55 C to a 125 C TA e b 40 C to a 85 C Typ Units Conditions Guaranteed Limits VIH Minimum High Level Input Voltage 4.5 5.5 1.5 1.5 2.0 2.0 2.0 2.0 2.0 2.0 V VOUT e 0.1V or VCC b 0.1V VIL Maximum Low Level Input Voltage 4.5 5.5 1.5 1.5 0.8 0.8 0.8 0.8 0.8 0.8 V VOUT e 0.1V or VCC b 0.1V VOH Minimum High Level Output Voltage 4.5 5.5 4.49 5.49 4.4 5.4 4.4 5.4 4.4 5.4 V 3.86 4.86 3.70 4.70 3.76 4.76 V 0.1 0.1 0.1 0.1 0.1 0.1 V 4.5 5.5 0.36 0.36 0.50 0.50 0.44 0.44 V 4.5 5.5 VOL Maximum Low Level Output Voltage 4.5 5.5 0.001 0.001 IOUT e b50 mA *VIN e VIL or VIH b 24 mA IOH b 24 mA IOUT e 50 mA *VIN e VIL or VIH 24 mA IOL 24 mA VI e VCC, GND IIN Maximum Input Leakage Current 5.5 g 0.1 g 1.0 g 1.0 mA IOZ Maximum TRI-STATEE Current 5.5 g 0.25 g 5.0 g 2.5 mA ICCT Maximum ICC/Input 5.5 1.6 1.5 mA VI e VCC b 2.1V IOLD Minimum Dynamic Output Current IOHD ICC Maximum Quiescent Supply Current 0.6 5.5 50 75 mA VOLD e 1.65V Max 5.5 b 50 b 75 mA VOHD e 3.85V Min 80.0 40.0 mA VIN e VCC or GND 5.5 4.0 *All outputs loaded; thresholds on input associated with output under test. Maximum test duration 2.0 ms, one output loaded at a time. Note: ICC for 54ACT @ http://www.national.com VI e VIL, VIH VO e VCC, GND 25 C is identical to 74ACT @ 25 C. 4 AC Electrical Characteristics Symbol Parameter VCC* (V) 74AC 54AC 74AC TA e a 25 C CL e 50 pF TA e b55 C to a 125 C CL e 50 pF TA e b40 C to a 85 C CL e 50 pF Max Min Max Min Typ fmax Maximum Clock Frequency 3.3 5.0 60 100 110 155 tPLH Propagation Delay CP to On 3.3 5.0 3.0 2.5 11.0 8.0 13.5 9.5 3.0 3.0 16.5 12.0 1.5 1.5 15.5 10.5 ns tPHL Propagation Delay CP to On 3.3 5.0 2.5 2.0 10.0 7.0 12.5 9.0 3.0 3.0 15.0 11.0 2.0 1.5 14.0 10.0 ns tPZH Output Enable Time 3.3 5.0 3.0 2.0 9.5 7.0 11.5 8.5 1.0 1.5 14.0 10.5 1.5 1.0 13.0 9.5 ns tPZL Output Enable Time 3.3 5.0 2.5 2.0 9.0 6.5 11.5 8.5 1.0 1.5 14.0 10.5 1.5 1.0 13.0 9.5 ns tPHZ Output Disable Time 3.3 5.0 3.0 2.0 10.5 8.0 12.5 11.0 1.0 1.5 16.0 12.5 2.0 2.0 14.5 12.5 ns tPLZ Output Disable Time 3.3 5.0 2.0 1.5 8.0 6.5 11.5 8.5 1.0 1.5 13.0 10.5 1.0 1.0 12.5 10.0 ns 60 95 Min Units Max 60 100 MHz *Voltage Range 3.3 is 3.3V g 0.3V Voltage Range 5.0 is 5.0V g 0.5V AC Operating Requirements 74AC 54AC 74AC TA e a 25 C CL e 50 pF TA e b55 C to a 125 C CL e 50 pF TA e b40 C to a 85 C CL e 50 pF Symbol Parameter VCC* (V) ts Setup Time, HIGH or LOW Dn to CP 3.3 5.0 2.0 1.0 5.5 4.0 6.5 5.0 6.0 4.5 ns th Hold Time, HIGH or LOW Dn to CP 3.3 5.0 b 1.0 0 1.0 1.5 1.0 1.5 1.0 1.5 ns CP Pulse Width, HIGH or LOW 3.3 5.0 4.0 2.5 5.5 4.0 6.5 5.0 6.0 4.5 ns Typ tw Units Guaranteed Minimum *Voltage Range 3.3 is 3.3V g 0.3V Voltage Range 5.0 is 5.0V g 0.5V 5 http://www.national.com AC Electrical Characteristics Symbol Parameter VCC* (V) 74ACT 54ACT 74ACT TA e a 25 C CL e 50 pF TA e b55 C to a 125 C CL e 50 pF TA e b40 C to a 85 C CL e 50 pF Min Typ 5.0 100 160 Propagation Delay CP to On 5.0 2.0 8.5 10.0 1.5 12.0 2.0 11.5 ns tPHL Propagation Delay CP to On 5.0 2.0 8.0 9.5 1.5 11.5 1.5 11.0 ns tPZH Output Enable Time 5.0 2.0 8.0 9.5 1.5 11.5 1.5 10.5 ns tPZL Output Enable Time 5.0 1.5 8.0 9.0 1.5 11.5 1.5 10.5 ns tPHZ Output Disable Time 5.0 1.5 8.5 11.5 1.5 13.0 1.0 12.5 ns tPLZ Output Disable Time 5.0 1.5 7.0 8.5 1.5 11.0 1.0 10.0 ns fmax Maximum Clock Frequency tPLH Max Min Max 70 Min Units Max 90 MHz *Voltage Range 5.0 is 5.0V g 0.5V AC Operating Requirements VCC* (V) 74ACT 54ACT 74ACT TA e a 25 C CL e 50 pF TA e b55 C to a 125 C CL e 50 pF TA e b40 C to a 85 C CL e 50 pF Units Symbol Parameter ts Setup Time, HIGH or LOW Dn to CP 5.0 1.0 5.5 5.5 5.5 ns th Hold Time, HIGH or LOW Dn to CP 5.0 0 1.5 1.5 1.5 ns tw CP Pulse Width, HIGH or LOW 5.0 2.5 5.0 5.0 5.0 ns Typ Guaranteed Minimum *Voltage Range 5.0 is 5.0V g 0.5V Capacitance Parameter Typ Units Conditions CIN Symbol Input Capacitance 4.5 pF VCC e OPEN CPD Power Dissipation Capacitance 40 pF VCC e 5.0V http://www.national.com 6 7 http://www.national.com Ordering Information The device number is used to form part of a simplified purchasing code where the package type and temperature range are defined as follows: TL/F/9959 - 7 Physical Dimensions inches (millimeters) unless otherwise noted 20 Terminal Ceramic Leadless Chip Carrier (L) NS Package Number E20A http://www.national.com 8 Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 20 Lead Ceramic Dual-In-Line Package (D) NS Package Number J20A 20 Lead Small Outline Integrated Circuit (S) NS Package Number M20B 9 http://www.national.com Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 20 Lead Plastic EIAJ SSOP (MSA) NS Package Number MSA20 http://www.national.com 10 Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 20-Lead Molded Thin Shrink Small Outline Package, JEDEC NS Package Number MTC20 20-Lead Plastic Dual-In-Line Package (P) NS Package Number N20A 11 http://www.national.com 54AC/74AC374 # 54ACT/74ACT374 Octal D Flip-Flop with TRI-STATE Outputs Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 20 Lead Ceramic Flatpak (F) NS Package Number W20A 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 http://www.national.com 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: europe.support @ nsc.com Deutsch Tel: a49 (0) 180-530 85 85 English Tel: a49 (0) 180-532 78 32 Fran3ais 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: 81-043-299-2308 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.