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| 74ACT74 DUAL D-TYPE FLIP FLOP WITH PRESET AND CLEAR s s s s s s s s s HIGH SPEED: fMAX = 250MHz (TYP.) at VCC = 5V LOW POWER DISSIPATION: ICC = 4A(MAX.) at TA=25C COMPATIBLE WITH TTL OUTPUTS VIH = 2V (MIN.), V IL = 0.8V (MAX.) 50 TRANSMISSION LINE DRIVING CAPABILITY SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 24mA (MIN) BALANCED PROPAGATION DELAYS: tPLH tPHL OPERATING VOLTAGE RANGE: VCC (OPR) = 4.5V to 5.5V PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 74 IMPROVED LATCH-UP IMMUNITY DIP SOP TSSOP ORDER CODES PACKAGE DIP SOP TSSOP TUBE 74ACT74B 74ACT74M T&R 74ACT74MTR 74ACT74TTR DESCRIPTION The 74ACT74 is an advanced high-speed CMOS DUAL D-TYPE FLIP FLOP WITH PRESET AND CLEAR fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS tecnology. A signal on the D INPUT is transferred to the Q and Q OUTPUTS during the positive going transition of the clock pulse. CLEAR and PRESET are independent of the clock and accomplished by a low setting on the appropriate input. The device is designed to interface directly High Speed CMOS systems with TTL, NMOS and CMOS output voltage levels. All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage. PIN CONNECTION AND IEC LOGIC SYMBOLS April 2001 1/12 74ACT74 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN No 1, 13 2, 12 3, 11 SYMBOL 1CLR, 2CLR 1D, 2D 1CK, 2CK NAME AND FUNCTION Asyncronous Reset Direct Input Data Inputs Clock Input (LOW to HIGH, Edge Triggered) Asyncronous Set - Direct Input True Flip-Flop Outputs Complement Flip-Flop Outputs Ground (0V) Positive Supply Voltage 4, 10 5, 9 6, 8 7 14 1PR, 2PR 1Q, 2Q 1Q, 2Q GND VCC TRUTH TABLE INPUTS CLR L H L H H H X : Don't Care OUTPUTS FUNCTION D X X X L H X CK X X X Q L H H L H Qn Q L L H H L Qn NO CHANGE CLEAR PRESET PR H L L H H H LOGIC DIAGRAM This logic diagram has not be used to estimate propagation delays 2/12 74ACT74 ABSOLUTE MAXIMUM RATINGS Symbol VCC VI VO IIK IOK IO Tstg TL Supply Voltage DC Input Voltage DC Output Voltage DC Input Diode Current DC Output Diode Current DC Output Current Storage Temperature Lead Temperature (10 sec) Parameter Value -0.5 to +7 -0.5 to VCC + 0.5 -0.5 to VCC + 0.5 20 20 50 200 -65 to +150 300 Unit V V V mA mA mA mA C C ICC or IGND DC VCC or Ground Current Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied. RECOMMENDED OPERATING CONDITIONS Symbol VCC VI VO Top dt/dv Supply Voltage Input Voltage Output Voltage Operating Temperature Input Rise and Fall Time VCC = 4.5 to 5.5V (note 1) Parameter Value 4.5 to 5.5 0 to VCC 0 to VCC -55 to 125 8 Unit V V V C ns/V 1) VIN from 0.8V to 2.0V 3/12 74ACT74 DC SPECIFICATIONS Test Condition Symbol Parameter VCC (V) 4.5 5.5 4.5 5.5 4.5 5.5 4.5 5.5 VOL Low Level Output Voltage 4.5 5.5 4.5 5.5 II ICCT ICC IOLD IOHD Input Leakage Current Max ICC/Input Quiescent Supply Current Dynamic Output Current (note 1, 2) 5.5 5.5 5.5 5.5 VO = 0.1 V or VCC-0.1V VO = 0.1 V or VCC-0.1V IO=-50 A IO=-50 A IO=-24 mA IO=-24 mA IO=50 A IO=50 A IO=24 mA IO=24 mA VI = VCC or GND VI = VCC - 2.1V VI = VCC or GND VOLD = 1.65 V max VOHD = 3.85 V min 0.6 4 4.4 5.4 3.86 4.86 0.001 0.001 0.1 0.1 0.36 0.36 0.1 TA = 25C Min. 2.0 2.0 Typ. 1.5 1.5 1.5 1.5 4.49 5.49 0.8 0.8 4.4 5.4 3.76 4.76 0.1 0.1 0.44 0.44 1 1.5 40 75 -75 Max. Value -40 to 85C Min. 2.0 2.0 0.8 0.8 4.4 5.4 3.7 4.7 0.1 0.1 0.5 0.5 1 1.6 40 50 -50 A mA A mA mA V Max. -55 to 125C Min. 2.0 2.0 0.8 0.8 V Max. V Unit VIH VIL VOH High Level Input Voltage Low Level Input Voltage High Level Output Voltage 1) Maximum test duration 2ms, one output loaded at time 2) Incident wave switching is guaranteed on transmission lines with impedances as low as 50 AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, RL = 500 , Input tr = tf = 3ns) Test Condition Symbol Parameter VCC (V) 5.0(*) 5.0(*) TA = 25C Min. Typ. 5.0 5.0 Max. 10.0 10.0 Value -40 to 85C Min. Max. 11.0 11.0 -55 to 125C Min. Max. 11.0 11.0 ns ns Unit tPLH tPHL Propagation Delay Time CK to Q or Q tPLH tPHL Propagation Delay Time PR or CLR to Q or Q tW Pulse Width HIGH or LOW, CK or PR or CLR Setup Time D to CK ts HIGH or LOW th Hold Time D to CK HIGH or LOW tREM Removal Tim| PR or CLR to CK fMAX Maximum Clock Frequency (*) Voltage range is 5.0V 0.5V 5.0(*) 5.0(*) 5.0(*) 5.0(*) 5.0(*) 100 1.5 0.5 -0.5 -0.7 250 5.0 3.0 1.0 1.0 85 6.0 3.5 1.0 1.0 85 6.0 3.5 1.0 1.0 ns ns ns ns MHz 4/12 74ACT74 CAPACITIVE CHARACTERISTICS Test Condition Symbol Parameter VCC (V) 5.0 5.0 fIN = 10MHz TA = 25C Min. Typ. 3 43 Max. Value -40 to 85C Min. Max. -55 to 125C Min. Max. pF pF Unit CIN CPD Input Capacitance Power Dissipation Capacitance (note 1) 1) CPD is defined as the value of the IC's internal equivalent capacitance which is calculated from the operating current consumption without load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC/2 (per Flip-Flop) TEST CIRCUIT CL = 50pF or equivalent (includes jig and probe capacitance) RL = R1 = 500 or equivalent RT = ZOUT of pulse generator (typically 50) 5/12 74ACT74 WAVEFORM 1: PROPAGATION DELAYS, SETUP AND HOLD TIMES (f=1MHz; 50% duty cycle) 6/12 74ACT74 WAVEFORM 2: PROPAGATION DELAYS (f=1MHz; 50% duty cycle) 7/12 74ACT74 WAVEFORM 3: RECOVERY TIMES (f=1MHz; 50% duty cycle) WAVEFORM 4: PULSE WIDTH 8/12 74ACT74 Plastic DIP-14 MECHANICAL DATA mm MIN. a1 B b b1 D E e e3 F I L Z 1.27 3.3 2.54 0.050 8.5 2.54 15.24 7.1 5.1 0.130 0.100 0.51 1.39 0.5 0.25 20 0.335 0.100 0.600 0.280 0.201 1.65 TYP. MAX. MIN. 0.020 0.055 0.020 0.010 0.787 0.065 inch TYP. MAX. DIM. P001A 9/12 74ACT74 SO-14 MECHANICAL DATA DIM. MIN. A a1 a2 b b1 C c1 D E e e3 F G L M S 3.8 4.6 0.5 8.55 5.8 1.27 7.62 4.0 5.3 1.27 0.68 8 (max.) 0.149 0.181 0.019 8.75 6.2 0.35 0.19 0.5 45 (typ.) 0.336 0.228 0.050 0.300 0.157 0.208 0.050 0.026 0.344 0.244 0.1 mm TYP. MAX. 1.75 0.2 1.65 0.46 0.25 0.013 0.007 0.019 0.003 MIN. inch TYP. MAX. 0.068 0.007 0.064 0.018 0.010 P013G 10/12 74ACT74 TSSOP14 MECHANICAL DATA mm MIN. A A1 A2 b c D E E1 e K L 0o 0.50 0.05 0.85 0.19 0.09 4.9 6.25 4.3 5 6.4 4.4 0.65 BSC 4o 0.60 8o 0.70 0o 0.020 0.10 0.9 TYP. MAX. 1.1 0.15 0.95 0.30 0.20 5.1 6.5 4.48 0.002 0.335 0.0075 0.0035 0.193 0.246 0.169 0.197 0.252 0.173 0.0256 BSC 4o 0.024 8o 0.028 0.004 0.354 MIN. inch TYP. MAX. 0.433 0.006 0.374 0.0118 0.0079 0.201 0.256 0.176 DIM. A A2 A1 b e K c L E D E1 PIN 1 IDENTIFICATION 1 11/12 |
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