74AC574 OCTAL D-TYPE FLIP FLOP WITH 3 STATE OUTPUT NON INVERTING ■ ■ ■ ■ ■ ■ ■ ■ ■ HIGH SPEED: fMAX = 220 MHz (TYP.) at VCC = 5V LOW POWER DISSIPATION: ICC = 8 µA (MAX.) at TA = 25 oC HIGH NOISE IMMUNITY: VNIH = VNIL = 28% VCC (MIN.) 50Ω TRANSMISSION LINE DRIVING CAPABILITY SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 24 mA (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 DESCRIPTION The AC574 is an advanced high-speed CMOS OCTAL D-TYPE FLIP FLOP with 3 STATE OUTPUT NON INVERTING fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology. These 8 bit D-Type flip-flops are controlled by a clock input (CK) and an output enable input (OE). On the positive transition of the clock, the Q DIP SOP TSSOP ORDER CODES PACKAGE T UBE DIP M74AC574B SOP M74AC574M TSSOP T& R M74AC574MTR M74AC574TTR outputs will be set to logic state that were setup at the D inputs. While the (OE) input is low, the 8 outputs will be in a normal logic state (high or low logic level) and while high level the outputs will be in a high impedance state. The output control does not affect the internal operation of flip flop; 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. PIN CONNECTION AND IEC LOGIC SYMBOLS February 2000 1/11 74AC574 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN No SYMBOL 1 OE NAME AND FUNCT ION 2, 3, 4, 5, 6, 7, 8, 9 D0 to D7 Data Inputs 12, 13, 14, 15, 16, 17, 18, 19 Q0 to Q7 3 State Outputs 11 CLOCK Clock Input (LOW to HIGH, edge triggered) 10 GND Ground (0V) 20 VCC Positive Supply Voltage 3 State Output Enable Input (Active LOW) TRUTH TABLE INPUTS CK D H X X Z X NO CHANGE L Q L L L L H H LOGIC DIAGRAM 2/11 OUT PUTS OE 74AC574 ABSOLUTE MAXIMUM RATINGS Symbol VCC Parameter Supply Voltage Value Unit -0.5 to +7 V VI DC Input Voltage -0.5 to VCC + 0.5 V VO DC Output Voltage -0.5 to VCC + 0.5 V IIK DC Input Diode Current ± 20 mA IOK DC Output Diode Current ± 20 mA IO DC Output Current ± 50 mA ± 400 mA ICC or IGND DC VCC or Ground Current Tstg Storage Temperature TL Lead Temperature (10 sec) -65 to +150 o 300 o C C Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied. RECOMMENDED OPERATING CONDITIONS Symbol VCC Parameter Supply Voltage Valu e Unit 2 to 6 V V VI Input Voltage 0 to VCC VO Output Voltage 0 to VCC Top dt/dv Operating Temperature: Input Rise and Fall Time VCC = 3.0, 4.5 or 5.5 V(note 1) -40 to +85 8 V o C ns/V 1) VIN from 30% to70%of VCC 3/11 74AC574 DC SPECIFICATIONS Symb ol Parameter Test Co nditions VIH High Level Input Voltage 3.0 4.5 VO = 0.1 V or VCC - 0.1 V 5.5 VIL Low Level Input Voltage 3.0 4.5 Valu e T A = 25 oC V CC (V) Min. T yp. 2.1 1.5 2.1 3.15 2.25 3.15 3.85 2.75 VO = 0.1 V or VCC - 0.1 V 5.5 VOH High Level Output Voltage 3.0 4.5 Min. Max. V 3.85 1.5 0.9 0.9 2.25 1.35 1.35 2.75 1.65 1.65 I O =-50 µA 2.9 2.99 2.9 IO=-50 µA 4.4 4.49 4.4 5.49 IO=-50 µA 5.4 2.56 2.46 4.5 IO=-24 mA 3.86 3.76 5.5 IO=-24 mA 4.86 3.0 IO=50 µA 0.002 0.1 0.1 IO=50 µA 0.001 0.1 0.1 IO=50 µA IO=12 mA 0.001 0.1 0.1 0.36 0.44 0.36 0.44 0.36 0.44 3.0 Low Level Output Voltage VI = V IH or V IL Max. IO=-12 mA 5.5 VOL (* ) Un it -40 to 85 o C 4.5 5.5 3.0 4.5 5.5 (* ) VI = V IH or V IL IO=24 mA IO=24 mA 5.4 V V 4.76 V Input Leakage Current 5.5 VI = VCC or GND ±0.1 ±1 µA IOZ 3-State Output Off-state Current 5.5 VI = VCC or GND VO = VCC or GND VI(OE) = VIH ±0.5 ±5 µA ICC Quiescent Supply Current 5.5 VI = VCC or GND 8 80 µA IOLD Dynamic Output Current (note 1, 2) 5.5 VOLD = 1.65 V max 75 mA VOHD = 3.85 V min -75 mA II IOHD 1) Maximum test duration 2ms, one output loaded attime 2) Incident wave switching is guaranteed on transmission lines with impedances as low as 50 Ω. (*) All outputs loaded. 4/11 74AC574 AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, RL = 500 Ω, Input tr = tf =3 ns) Symb ol Parameter T est Con ditio n V CC (V) tPLH tPHL Propagation Delay Time CK to Q tPZL tPZH tPLZ tPHZ 3.3(*) Valu e T A = 25 oC -40 to 85 o C Min. T yp. Max. Min. Max. 6.5 12 13.5 5.0(**) 5 8.5 9.5 Output EnableTime 3.3(*) 5.0(**) 7 5 11 8 12 9 Output Disable Time 6.5 5 1.5 1.5 9 7.5 6 4 10.5 8.5 7 5 (*) Un it ns ns tw Clock Pulse Width HIGH or LOW 3.3 5.0(**) 3.3(*) 5.0(**) ts Setup Time Q to CK HIGH or LOW 3.3(*) 5.0(**) -0.5 0 2.5 1.5 3 2 ns th Hold Time Q to CK HIGH or LOW 3.3(*) 5.0(**) 0.5 0 2.5 1.5 3 2 ns Maximum Clock Frequency 3.3(*) 5.0(**) fMAX 75 95 200 220 60 85 ns ns MHz (*) Voltage range is 3.3V ± 0.3V (**) Voltage range is 5V ± 0.5V CAPACITIVE CHARACTERISTICS Symb ol Parameter Test Co nditions V CC (V) Valu e o T A = 25 C Min. T yp. Max. Un it o -40 to 85 C Min. Max. Output Capacitance 5.0 8 pF C IN Input Capacitance 5.0 4 pF CPD Power Dissipation Capacitance (note 1) 5.0 18 pF COUT 1) CPD isdefined as the value of the IC’sinternal equivalent capacitance which is calculated fromthe operating current consumption without load. (Referto Test Circuit).Average operating current can be obtained by the following equation. ICC(opr) = CPD • VCC • fIN + ICC/n (per circuit) 5/11 74AC574 TEST CIRCUIT T EST tPLH , tPHL SW IT CH Open tPZL , tPLZ 2VCC tPZH , tPHZ Open CL = 50 pF or equivalent (includes jigand probe capacitance) RL = R1 = 500Ω orequivalent RT = ZOUT of pulse generator (typically 50Ω) 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 7/11 74AC574 Plastic DIP-20 (0.25) MECHANICAL DATA mm DIM. MIN. a1 0.254 B 1.39 TYP. inch MAX. MIN. TYP. MAX. 0.010 1.65 0.055 0.065 b 0.45 0.018 b1 0.25 0.010 D 25.4 1.000 E 8.5 0.335 e 2.54 0.100 e3 22.86 0.900 F 7.1 0.280 I 3.93 0.155 L Z 3.3 0.130 1.34 0.053 P001J 8/11 74AC574 SO-20 MECHANICAL DATA mm DIM. MIN. TYP. A a1 inch MAX. MIN. TYP. 2.65 0.10 0.104 0.20 a2 MAX. 0.004 0.007 2.45 0.096 b 0.35 0.49 0.013 0.019 b1 0.23 0.32 0.009 0.012 C 0.50 0.020 c1 45 (typ.) D 12.60 13.00 0.496 0.512 E 10.00 10.65 0.393 0.419 e 1.27 0.050 e3 11.43 0.450 F 7.40 7.60 0.291 0.299 L 0.50 1.27 0.19 0.050 M S 0.75 0.029 8 (max.) P013L 9/11 74AC574 TSSOP20 MECHANICAL DATA mm DIM. MIN. inch TYP. MAX. A MIN. TYP. 1.1 0.433 A1 0.05 0.10 0.15 0.002 0.004 0.006 A2 0.85 0.9 0.95 0.335 0.354 0.374 b 0.19 0.30 0.0075 0.0118 c 0.09 0.2 0.0035 0.0079 D 6.4 6.5 6.6 0.252 0.256 0.260 E 6.25 6.4 6.5 0.246 0.252 0.256 E1 4.3 4.4 4.48 0.169 0.173 0.176 e 0.65 BSC 0.0256 BSC K 0o 4o 8o 0o 4o 8o L 0.50 0.60 0.70 0.020 0.024 0.028 A A2 A1 b K e E1 PIN 1 IDENTIFICATION 1 L E c D 10/11 MAX. 74AC574 Information furnished is believed to be accurate and reliable. However, STMicroelectronic s 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. Specification mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. 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