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74LVX273 LOW VOLTAGE CMOS OCTAL D-TYPE FLIP-FLOP WITH CLEAR (5V TOLERANT INPUTS) s s s s s s s s s s s HIGH SPEED: fMAX = 150 MHz (TYP.) at VCC = 3.3V 5V TOLERANT INPUTS POWER-DOWN PROTECTION ON INPUTS INPUT VOLTAGE LEVEL: VIL = 0.8V, VIH = 2V at VCC =3V LOW POWER DISSIPATION: ICC = 4 A (MAX.) at TA=25C LOW NOISE: VOLP = 0.3V (TYP.) at VCC =3.3V SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 4 mA (MIN) at VCC =3V BALANCED PROPAGATION DELAYS: tPLH tPHL OPERATING VOLTAGE RANGE: VCC(OPR) = 2V to 3.6V (1.2V Data Retention) PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 273 IMPROVED LATCH-UP IMMUNITY SOP TSSOP ORDER CODES PACKAGE SOP TSSOP TUBE 74LVX273M T&R 74LVX273MTR 74LVX273TTR DESCRIPTION The 74LVX273 is a low voltage CMOS OCTAL D-TYPE FLIP-FLOP WITH CLEAR fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology. It is ideal for low power, battery operated and low noise 3.3V applications. Information signals applied to D inputs are transferred to the Q outputs on the positive going edge of the clock pulse. When the CLEAR input is held low, the Q outputs are held low independently of the other inputs. Power down protection is provided on all inputs and 0 to 7V can be accepted on inputs with no regard to the supply voltage. This device can be used to interface 5V to 3V. It combines high speed performance with the true CMOS low power consumption. 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 July 2001 1/10 74LVX273 INPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN No 1 2, 5, 6, 9, 12, 15, 16,19 3, 4, 7, 8, 13, 14, 17, 18 11 10 20 SYMBOL CLEAR Q0 to Q7 D0 to D7 CLOCK GND VCC NAME AND FUNCTION Asynchronous Master Reset (Active LOW) Flip-Flop Outputs Data Inputs Clock Input (LOW-to-HIGH Edge Triggered) Ground (0V) Positive Supply Voltage TRUTH TABLE INPUTS CLEAR L H H H X : Don't Care OUTPUT FUNCTION B X Q L L H Qn NO CHANGE CLEAR D X L H X LOGIC DIAGRAM This logic diagram has not be used to estimate propagation delays 2/10 74LVX273 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 -0.5 to +7.0 -0.5 to VCC + 0.5 - 20 20 25 50 -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 (note 1) Input Voltage Output Voltage Operating Temperature Input Rise and Fall Time (note 2) (VCC = 3V) Parameter Value 2 to 3.6 0 to 5.5 0 to VCC -55 to 125 0 to 100 Unit V V V C ns/V 1) Truth Table guaranteed: 1.2V to 3.6V 2) VIN from 0.8V to 2.0V 3/10 74LVX273 DC SPECIFICATIONS Test Condition Symbol Parameter VCC (V) 2.0 3.0 3.6 2.0 3.0 3.6 2.0 3.0 3.0 VOL Low Level Output Voltage 2.0 3.0 3.0 II ICC Input Leakage Current Quiescent Supply Current 3.6 3.6 IO=-50 A IO=-50 A IO=-4 mA IO=50 A IO=50 A IO=4 mA VI = 5V or GND VI = VCC or GND TA = 25C Min. 1.5 2.0 2.4 0.5 0.8 0.8 1.9 2.9 2.58 0.0 0.0 0.1 0.1 0.36 0.1 4 2.0 3.0 1.9 2.9 2.48 0.1 0.1 0.44 1 40 Typ. Max. Value -40 to 85C Min. 1.5 2.0 2.4 0.5 0.8 0.8 1.9 2.9 2.4 0.1 0.1 0.55 1 40 A A V V Max. -55 to 125C Min. 1.5 2.0 2.4 0.5 0.8 0.8 Max. V Unit VIH High Level Input Voltage Low Level Input Voltage High Level Output Voltage VIL V VOH DYNAMIC SWITCHING CHARACTERISTICS Test Condition Symbol Parameter VCC (V) 3.3 TA = 25C Min. Typ. 0.3 -0.8 CL = 50 pF 2.0 -0.3 V Max. 0.8 Value -40 to 85C Min. Max. -55 to 125C Min. Max. Unit VOLP VOLV VIHD VILD Dynamic Low Voltage Quiet Output (note 1, 2) Dynamic High Voltage Input (note 1, 3) Dynamic Low Voltage Input (note 1, 3) 3.3 3.3 0.8 1) Worst case package. 2) Max number of outputs defined as (n). Data inputs are driven 0V to 3.3V, (n-1) outputs switching and one output at GND. 3) Max number of data inputs (n) switching. (n-1) switching 0V to 3.3V. Inputs under test switching: 3.3V to threshold (VILD), 0V to threshold (VIHD), f=1MHz. 4/10 74LVX273 AC ELECTRICAL CHARACTERISTICS (Input tr = tf = 3ns) Test Condition Symbol Parameter VCC (V) 2.7 2.7 3.3 tPHL Propagation Delay Time CLEAR to Q (*) Value TA = 25C Min. Typ. 9.0 11.5 7.1 9.6 9.3 11.8 7.3 9.8 Max. 16.9 20.4 11.0 14.5 17.6 21.1 11.5 15.0 5.0 5.0 5.5 5.0 5.5 -40 to 85C Min. 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 Max. 20.5 24.0 13.0 16.5 20.5 24.0 13.5 17.0 6.0 5.0 6.5 5.0 6.5 4.5 1.0 1.0 2.5 2.0 55 40 80 55 1.0 1.0 1.5 1.5 50 35 75 50 1.5 1.5 ns MHz -55 to 125C Min. 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 Max. 22.0 25.5 14.5 18.0 22.0 25.5 15.5 18.0 6.0 5.0 6.5 5.0 6.5 4.5 1.0 1.0 2.5 2.0 ns ns ns ns ns ns Unit CL (pF) 15 50 15 50 15 50 15 50 50 50 tPLH tPHL Propagation Delay Time CK to Q 3.3(*) 3.3(*) 3.3 5.0 (*) (**) tW(L) tW tS CLEAR pulse Width, HIGH CLOCK pulse Width, HIGH Setup Time Q to CLOCK HIGH or LOW Hold Time Q to CLOCK HIGH or LOW Recovery Time CLEAR to Q Maximum Clock Frequency 5.0(**) 2.7 3.3(*) 2.7 3.3(*) 2.7 3.3(*) 2.7 3.3(*) 2.7 3.3(*) 2.7 2.7 3.3(*) 3.3(*) 2.7 3.3 (*) 50 4.5 1.0 th tREM fMAX 50 1.0 2.5 2.0 55 45 95 60 110 60 150 90 0.5 0.5 50 15 50 15 50 50 50 ns tOSLH tOSHL Output to Output Skew Time (note 1,2) 1) Skew is defined as the absolute value of the difference between the actual propagation delay for any two outputs of the same device switching in the same direction, either HIGH or LOW 2) Parameter guaranteed by design (*) Voltage range is 3.3V 0.3V CAPACITIVE CHARACTERISTICS Test Condition Symbol Parameter VCC (V) 3.3 3.3 fIN = 10MHz TA = 25C Min. Typ. 5 40 Max. 10 Value -40 to 85C Min. Max. 10 -55 to 125C Min. Max. 10 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 ad. (Refer to Test Circuit). Average operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x f IN + ICC/8 (per circuit) 5/10 74LVX273 TEST CIRCUIT CL =15/50pF or equivalent (includes jig and probe capacitance) RT = ZOUT of pulse generator (typically 50) WAVEFORM 1 : PROPAGATION DELAYS, SETUP AND HOLD TIMES (f=1MHz; 50% duty cycle) 6/10 74LVX273 WAVEFORM 2 : PROPAGATION DELAYS (f=1MHz; 50% duty cycle) WAVEFORM 3 : RECOVERY TIME (f=1MHz; 50% duty cycle) 7/10 74LVX273 SO-20 MECHANICAL DATA mm. 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 0.020 13.00 10.65 0.35 0.23 0.5 45 (typ.) 0.496 0.393 0.050 0.450 0.300 0.050 0.029 0.512 0.419 0.1 TYP MAX. 2.65 0.2 2.45 0.49 0.32 0.014 0.009 0.020 0.004 MIN. TYP. MAX. 0.104 0.008 0.096 0.019 0.012 inch PO13L 8/10 74LVX273 TSSOP20 MECHANICAL DATA mm. DIM. MIN. A A1 A2 b c D E E1 e K L 0 0.45 0.60 0.05 0.8 0.19 0.09 6.4 6.2 4.3 6.5 6.4 4.4 0.65 BSC 8 0.75 0 0.018 0.024 1 TYP MAX. 1.2 0.15 1.05 0.30 0.20 6.6 6.6 4.48 0.002 0.031 0.007 0.004 0.252 0.244 0.169 0.256 0.252 0.173 0.0256 BSC 8 0.030 0.004 0.039 MIN. TYP. MAX. 0.047 0.006 0.041 0.012 0.0089 0.260 0.260 0.176 inch A A2 A1 b e K c L E D E1 PIN 1 IDENTIFICATION 1 0087225C 9/10 74LVX273 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 10/10 |
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