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| 74AC574 OCTAL D-TYPE FLIP-FLOP WITH 3 STATE OUTPUTS (NON INVERTED) 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 HIGH NOISE IMMUNITY: VNIH = V NIL = 28 % VCC (MIN.) 50 TRANSMISSION LINE DRIVING CAPABILITY SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 24mA (MIN) BALANCED PROPAGATION DELAYS: tPLH tPHL OPERATING VOLTAGE RANGE: VCC (OPR) = 2V to 6V PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 574 IMPROVED LATCH-UP IMMUNITY DIP SOP TSSOP ORDER CODES PACKAGE DIP SOP TSSOP TUBE 74AC574B 74AC574M T&R 74AC574MTR 74AC574TTR DESCRIPTION The 74AC574 is an advanced high-speed CMOS OCTAL D-TYPE FLIP-FLOP with 3 STATE OUTPUTS NON INVERTING fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology. These 8 bit D-Type Flip-Flop are controlled by a clock input (CK) and an output enable input (OE). On the positive transition of the clock, the Q outputs will be set to the logic that were setup at the D inputs. PIN CONNECTION AND IEC LOGIC SYMBOLS While the (OE) input is low, the 8 outputs will be in a normal logic state (high or low logic level); while OE is in high level, the outputs will be in a high impedance state. The output control does not affect the internal operation of flip-flops; that is, the old data can be retained or the new data can be entered even while the outputs are off. All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage. April 2001 1/11 74AC574 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN No 1 2, 3, 4, 5, 6, 7, 8, 9 12, 13, 14, 15, 16, 17, 18, 19 11 10 20 SYMBOL OE D0 to D7 Q0 to Q7 NAME AND FUNCTION 3-State Output Enable (Active LOW) Data Inputs 3-State Outputs CLOCK GND VCC Clock Input (LOW-to-HIGH Edge Trigger) Ground (0V) Positive Supply Voltage TRUTH TABLE INPUTS OE H L L L X : Don't Care Z : High Impedance OUTPUT D X X L H Q Z NO CHANGE L H CK X LOGIC DIAGRAM This logic diagram has not be used to estimate propagation delays 2/11 74AC574 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 50 400 -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 = 3.0, 4.5 or 5.5V (note 1) Parameter Value 2 to 6 0 to VCC 0 to VCC -55 to 125 8 Unit V V V C ns/V 1) VIN from 30% to 70% of V CC 3/11 74AC574 DC SPECIFICATIONS Test Condition Symbol Parameter VCC (V) 3.0 4.5 5.5 3.0 4.5 5.5 3.0 4.5 5.5 3.0 4.5 5.5 VOL Low Level Output Voltage 3.0 4.5 5.5 3.0 4.5 5.5 II Ioz Input Leakage Current High Impedance Output Leakege Current 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=-50 A IO=-12 mA IO=-24 mA IO=-24 mA IO=50 A IO=50 A IO=50 A IO=12 mA IO=24 mA IO=24 mA VI = VCC or GND VI = VIH or VIL VO = VCC or GND VI = VCC or GND VOLD = 1.65 V max VOHD = 3.85 V min 2.9 4.4 5.4 2.56 3.86 4.86 0.002 0.001 0.001 0.1 0.1 0.1 0.36 0.36 0.36 0.1 0.5 4 TA = 25C Min. 2.1 3.15 3.85 Typ. 1.5 2.25 2.75 1.5 2.25 2.75 2.99 4.49 5.49 Max. Value -40 to 85C Min. 2.1 3.15 3.85 0.9 1.35 1.65 2.9 4.4 5.4 2.46 3.76 4.76 0.1 0.1 0.1 0.44 0.44 0.44 1 2.5 40 75 -75 0.9 1.35 1.65 2.9 4.4 5.4 2.4 3.7 4.7 0.1 0.1 0.1 0.5 0.5 0.5 1 5 80 50 -50 A A A mA mA V V Max. -55 to 125C Min. 2.1 3.15 3.85 0.9 1.35 1.65 Max. V Unit VIH High Level Input Voltage Low Level Input Voltage High Level Output Voltage VIL V VOH ICC IOLD IOHD 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 4/11 74AC574 AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, RL = 500 , Input tr = tf = 3ns) Test Condition Symbol Parameter VCC (V) 3.3 (*) Value TA = 25C Min. Typ. 6.5 5.0 7.0 5.0 6.5 5.0 1.5 1.5 -0.5 0 0.5 0 75 95 220 250 Max. 13.5 9.5 11.0 8.5 12.0 9.5 6.0 4.0 2.5 1.5 2.5 1.5 60 85 -40 to 85C Min. Max. 15.0 11.0 12.0 9.0 13.0 10.5 7.0 5.0 3.0 2.0 3.0 2.0 60 85 -55 to 125C Min. Max. 16.5 11.5 13.0 9.5 14.0 11.5 7.0 5.0 3.0 2.0 3.0 2.0 ns ns Unit tPLH tPHL Propagation Delay Time CK to Q tPZL tPZH Output Enable Time tPLZ tPHZ Output Disable Time tW CLOCK Pulse Width HIGH or LOW Setup Time D to CK, HIGH or LOW Hold Time D to CK, HIGH or LOW Maximum Clock Frequency 5.0(**) 3.3(*) 5.0 (**) ns 3.3(*) 5.0 (**) ns 3.3(*) 5.0 (**) ts th fMAX 3.3(*) 5.0 (**) ns ns 3.3(*) 5.0(**) 3.3(*) 5.0 (**) MHz (*) Voltage range is 3.3V 0.3V (**) Voltage range is 5.0V 0.5V CAPACITIVE CHARACTERISTICS Test Condition Symbol Parameter VCC (V) 5.0 5.0 5.0 fIN = 10MHz TA = 25C Min. Typ. 4 8 18 Max. Value -40 to 85C Min. Max. -55 to 125C Min. Max. pF pF pF Unit CIN COUT CPD Input Capacitance Output 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 f IN + ICC/n (per circuit) 5/11 74AC574 TEST CIRCUIT TEST tPLH, tPHL tPZL, tPLZ tPZH, tPHZ CL = 50pF or equivalent (includes jig and probe capacitance) RL = R1 = 500 or equivalent RT = ZOUT of pulse generator (typically 50) SWITCH Open 2VCC Open WAVEFORM 1: PROPAGATION DELAYS, SETUP AND HOLD TIMES (f=1MHz; 50% duty cycle) 6/11 74AC574 WAVEFORM 2: OUTPUT ENABLE AND DISABLE TIMES (f=1MHz; 50% duty cycle) WAVEFORM 3: PULSE WIDTH (f=1MHz; 50% duty cycle) 7/11 74AC574 Plastic DIP-20 (0.25) MECHANICAL DATA mm MIN. a1 B b b1 D E e e3 F I L Z 3.3 1.34 8.5 2.54 22.86 7.1 3.93 0.130 0.053 0.254 1.39 0.45 0.25 25.4 0.335 0.100 0.900 0.280 0.155 1.65 TYP. MAX. MIN. 0.010 0.055 0.018 0.010 1.000 0.065 inch TYP. MAX. DIM. P001J 8/11 74AC574 SO-20 MECHANICAL DATA DIM. MIN. A a1 a2 b b1 C c1 D E e e3 F L M S 7.40 0.50 12.60 10.00 1.27 11.43 7.60 1.27 0.75 8 (max.) 0.291 0.19 13.00 10.65 0.35 0.23 0.50 45 (typ.) 0.496 0.393 0.050 0.450 0.299 0.050 0.029 0.512 0.419 0.10 mm TYP. MAX. 2.65 0.20 2.45 0.49 0.32 0.013 0.009 0.020 0.004 MIN. inch TYP. MAX. 0.104 0.007 0.096 0.019 0.012 P013L 9/11 74AC574 TSSOP20 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 6.4 6.25 4.3 6.5 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 0.2 6.6 6.5 4.48 0.002 0.335 0.0075 0.0035 0.252 0.246 0.169 0.256 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 0.260 0.256 0.176 DIM. A A2 A1 b e K c L E D E1 PIN 1 IDENTIFICATION 1 10/11 74AC574 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. (c) The ST logo is a registered trademark of STMicroelectronics (c) 2001 STMicroelectronics - Printed in Italy - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - China - Finland - France - Germany - Hong Kong - India - Italy - Japan - Malaysia - Malta - Morocco Singapore - Spain - Sweden - Switzerland - United Kingdom (c) http://www.st.com 11/11 |
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