54ACT564 Octal D-Type Flip-Flop with TRI-STATE ® Outputs General Description Features The ’ACT564 is a high-speed, low power octal flip-flop with a buffered common Clock (CP) and a buffered common Output Enable (OE). The information presented to the D inputs is stored in the flip-flops on the LOW-to-HIGH Clock (CP) transition. n ICC and IOZ reduced by 50% n Inputs and outputs on opposite sides of package allowing easy interface with microprocessors n Useful as input or output port for microprocessors n Functionally identical to ’ACT574 but with inverted outputs n TRI-STATE outputs for bus-oriented applications n Outputs source/sink 24 mA n ’ACT564 has TTL-compatible inputs n Standard Microcircuit Drawing (SMD) 5962-89557 The ’ACT564 is functionally identical to the ’ACT574, but with inverted outputs. Logic Symbols IEEE/IEC DS100994-1 DS100994-2 Pin Names Description D0–D7 Data Inputs CP Clock Pulse Input OE TRI-STATE Output Enable Input O0–O7 TRI-STATE Outputs TRI-STATE ® is a registered trademark of National Semiconductor Corporation. FACT™ is a trademark of Fairchild Semiconductor Corporation. © 1998 National Semiconductor Corporation DS100994 www.national.com 54ACT564 Octal D-Type Flip-Flop with TRI-STATE Outputs September 1998 Connection Diagrams Pin Assignment for DIP, and Flatpak Pin Assignment for LCC DS100994-4 DS100994-3 Functional Description The’ACT564 consists of eight edge-triggered flip-flops with individual D-type inputs and TRI-STATE complement 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 complement of the contents of the eight flip-flops are available at the outputs. When 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. Function Table Inputs Internal Outputs CP H H L NC Z Hold H H H NC Z Hold H N L L Z Load H N H H Z Load L N L L H Data Available L N H H L Data Available L H L NC NC No Change in Data L H H NC NC No Change in Data D Q H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Z = High Impedance N = LOW-to-HIGH Transition NC = No Change www.national.com 2 Function OE ON Absolute Maximum Ratings (Note 1) CDIP 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 = −0.5V VI = VCC +0.5V DC Input Voltage (VI) DC Output Diode Current (IOK) VO = −0.5V VO = VCC +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) 175˚C Recommended Operating Conditions −0.5V to +7.0V Supply Voltage (VCC) (Unless Otherwise Specified) (ACT) Input Voltage (VI) Output Voltage (VO) Operating Temperature (TA) ACT Minimum Input Edge Rate (∆V/∆t) ’ACT Devices VIN from 0.8V to 2.0V VCC @ 4.5V, 5.5V −20 mA +20 mA −0.5V to VCC +0.5V −20 mA +20 mA −0.5V to VCC +0.5V ± 50 mA 4.5V to 5.5V 0V to VCC 0V to VCC −55˚C to +125˚C 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. ± 50 mA −65˚C to +150˚C DC Characteristics for ’ACT Family Devices Symbol Parameter VCC 54ACT TA = (V) −55˚C to +125˚C Units Conditions Guaranteed Limits VIH VIL VOH Minimum High Level Input Voltage Maximum Low Level Input Voltage Minimum High Level 4.5 2.0 5.5 2.0 4.5 0.8 5.5 0.8 4.5 4.4 5.5 5.4 V VOUT = 0.1V or VCC − 0.1V V VOUT = 0.1V or VCC − 0.1V V IOUT = −50 µA (Note 2) VIN = VIL or VIH VOL Maximum Low Level Output Voltage 4.5 3.70 5.5 4.70 4.5 0.1 5.5 0.1 V IOH −24 mA −24 mA V IOUT = 50 µA (Note 2) VIN = VIL or VIH 4.5 0.50 5.5 0.50 5.5 ± 1.0 µA VI = VCC, GND Maximum TRI-STATE Leakage Current 5.5 ± 10.0 µA VI = VIL, VIH ICCT Maximum ICC/Input 5.5 1.6 mA IOLD 5.5 50 mA VI = VCC − 2.1V VOLD = 1.65V IOHD (Note 3) Minimum Dynamic Output Current 5.5 −50 mA VOHD = 3.85V ICC Maximum Quiescent 5.5 80.0 µA VIN = VCC IIN Maximum Input V IOL 24 mA 24 mA Leakage Current IOZ VO = VCC, GND Supply Current or GND Note 2: All outputs loaded; thresholds on input associated with output under test. 3 www.national.com DC Characteristics for ’ACT Family Devices (Continued) Note 3: Maximum test duration 2.0 ms, one output loaded at a time. AC Electrical Characteristics for ’ACT Family Devices 54ACT TA = −55˚C VCC Symbol Parameter (V) to +125˚C CL = 50 pF (Note 4) Min Units Max fMAX Maximum Clock Frequency 5.0 65 tPLH Propagation Delay 5.0 1.0 12.5 ns 5.0 1.0 11.5 ns ns CP to On tPHL Propagation Delay CP to On tPZH Output Enable Time 5.0 1.0 10.5 ns tPZL Output Enable Time 5.0 1.0 10.5 ns tPHZ Output Disable Time 5.0 1.0 12.5 ns tPLZ Output Disable Time 5.0 1.0 9.5 ns Note 4: Voltage Range 5.0 is 5.0V ± 0.5V AC Operating Requirements for ’ACT Family Devices VCC Symbol Parameter (V) (Note 5) 54ACT TA = −55˚C to +125˚C CL = 50 pF Units Guaranteed Minimum ts Set-Up Time, HIGH or LOW 5.0 3.5 ns 5.0 2.5 ns 5.0 5.0 ns Dn to CP th Hold Time, HIGH or LOW Dn to CP tw CP Pulse Width HIGH or LOW Note 5: Voltage Range 5.0 is 5.0V ± 0.5V Capacitance Typ Units CIN Symbol Input Capacitance Parameter 4.5 pF CPD Power Dissipation Capacitance 40.0 pF www.national.com 4 Conditions VCC = OPEN VCC = 5.0V 5 Physical Dimensions inches (millimeters) unless otherwise noted 20 Terminal Ceramic Leadless Chip Carrier (L) NS Package Number E20A www.national.com 6 Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 20 Lead Ceramic Dual-In-Line Package (D) NS Package Number J20A 20 Lead Ceramic Flatpak (F) NS Package Number W20A 7 www.national.com 54ACT564 Octal D-Type Flip-Flop with TRI-STATE Outputs 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: 2. A critical component in any component of a life support 1. Life support devices or systems are devices or sysdevice or system whose failure to perform can be reatems which, (a) are intended for surgical implant into sonably expected to cause the failure of the life support the body, or (b) support or sustain life, and whose faildevice or system, or to affect its safety or effectiveness. ure 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. 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