74AC273MTR

74AC273 OCTAL D-TYPE FLIP FLOP WITH CLEAR ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ HIGH SPEED: fMAX = 250MHz (TYP.) at VCC = 5V LOW POWER DISSIPATION: ICC = 8µA(MAX.) at TA=25°C HIGH NOISE IMMUNITY: VNIH = V NIL = 28 % VCC (MIN.) 50Ω 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 273 IMPROVED LATCH-UP IMMUNITY DIP TSSOP ORDER CODES DESCRIPTION The 74AC273 is an advanced high-speed CMOS OCTAL D-TYPE FLIP FLOP WITH CLEAR fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology. Information signals applied to D inputs are ) s ( ct SOP PACKAGE TUBE DIP SOP TSSOP 74AC273B 74AC273M ) s t( T&R o r P c u d 74AC273MTR 74AC273TTR transfered to the Q output on the positive going edge of the clock pulse. When the CLEAR input is held low, the Q outputs are held low independentely of the other inputs. All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage. e t le o s b O - u d o r P e PIN CONNECTION AND IEC LOGIC SYMBOLS t e l o s b O April 2001 1/11 74AC273 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN No SYMBOL NAME AND FUNCTION 1 CLEAR 2, 5, 6, 9, 12, 15, 16,19 3, 4, 7, 8, 13, 14, 17, 18 11 Q0 to Q7 Asyncronous Master Reset (Active LOW) Flip-Flop Outputs D0 to D7 Data Inputs CLOCK 10 20 GND VCC Clock Input (LOW-to-HIGH Edge Triggered) Ground (0V) Positive Supply Voltage TRUTH TABLE INPUTS OUTPUT ) s t( FUNCTION CLEAR D CLOCK Q X L L X H L L H H H H X X : Don’t Care LOGIC DIAGRAM ) s ( ct o s b O - u d o r P e t e l o s b O This logic diagram has not be used to estimate propagation delays 2/11 CLEAR d o r P e let Qn uc NO CHANGE 74AC273 ABSOLUTE MAXIMUM RATINGS Symbol VCC Parameter Value Supply Voltage Unit -0.5 to +7 V -0.5 to VCC + 0.5 -0.5 to VCC + 0.5 V DC Input Diode Current ± 20 mA IOK DC Output Diode Current ± 20 mA IO DC Output Current ± 50 mA ± 400 mA VI DC Input Voltage VO DC Output Voltage IIK ICC or IGND DC VCC or Ground Current Tstg Storage Temperature TL Lead Temperature (10 sec) V -65 to +150 °C 300 °C 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 Parameter Supply Voltage Input Voltage VO Output Voltage Top Operating Temperature uc 0 to VCC 1) VIN from 30% to 70% of V CC ) s ( ct d o r P e let Input Rise and Fall Time VCC = 3.0, 4.5 or 5.5V (note 1) ) s t( Unit 2 to 6 VI dt/dv Value V V 0 to VCC V -55 to 125 °C 8 ns/V o s b O - u d o r P e t e l o s b O 3/11 74AC273 DC SPECIFICATIONS Test Condition Symbol VIH Parameter 3.0 4.5 5.5 3.0 4.5 5.5 Low Level Input Voltage High Level Output Voltage VOH VOL Low Level Output Voltage II Input Leakage Current Quiescent Supply Current ICC IOLD IOHD TA = 25°C VCC (V) High Level Input Voltage VIL Value Dynamic Output Current (note 1, 2) VO = 0.1 V or VCC-0.1V Min. Typ. 2.1 3.15 3.85 1.5 2.25 2.75 1.5 2.25 2.75 VO = 0.1 V or VCC-0.1V Max. s b O 4/11 Min. Min. Max. 0.9 1.35 1.65 0.9 1.35 1.65 Max. 2.9 2.99 2.9 2.9 4.5 IO=-50 µA 4.4 4.49 4.4 4.4 5.5 IO=-50 µA 5.4 5.49 5.4 5.4 3.0 IO=-12 mA 2.56 2.46 2.4 4.5 IO=-24 mA 3.86 3.76 3.7 5.5 IO=-24 mA 4.86 4.76 4.7 3.0 IO=50 µA 0.002 0.1 0.1 4.5 IO=50 µA 0.001 0.1 0.1 5.5 IO=50 µA 0.001 3.0 IO=12 mA 4.5 IO=24 mA 5.5 IO=24 mA 5.5 VI = VCC or GND 5.5 VI = VCC or GND V 0.9 1.35 1.65 IO=-50 µA c u d V V ) s t( 0.1 0.1 0.36 o r P 0.44 0.5 0.36 0.44 0.5 ± 0.1 ±1 ±1 µA 8 80 160 µA VOLD = 1.65 V max 75 50 mA VOHD = 3.85 V min -75 -50 mA ) s ( ct 5.5 Unit 2.1 3.15 3.85 3.0 u d o t e l o -55 to 125°C 2.1 3.15 3.85 0.1 0.36 o s b O - e t le 1) Maximum test duration 2ms, one output loaded at time 2) Incident wave switching is guaranteed on transmission lines with impedances as low as 50Ω r P e -40 to 85°C 0.1 0.1 0.44 0.5 V 74AC273 AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, RL = 500 Ω, Input tr = tf = 3ns) Test Condition Symbol Parameter tPLH tPHL Propagation Delay Time CLOCK to Q tPHL Propagation Delay Time CLEAR to Q tW CLEAR Pulse Width, LOW CLOCK Pulse Width tW ts th tREM fMAX Setup Time D to CLOCK, HIGH or LOW Hold Time D to CLOCK, HIGH or LOW Recovery Time CLEAR to CLOCK Maximum Clock Frequency TA = 25°C VCC (V) Typ. Max. Min. Max. Min. Max. 4.0 7.5 12.5 3.0 14.0 3.0 16.0 5.0(**) 3.0 5.0 9.0 2.5 10.0 2.5 11.0 3.3(*) 4.0 8.5 13.0 3.0 14.0 3.0 16.0 (**) 5.0 3.0 6.5 10.0 2.5 11.0 2.5 12.0 3.3(*) 5.5 6.0 6.0 5.0(**) 4.0 4.5 4.5 3.3(*) 5.5 6.0 6.0 5.0(**) 4.0 4.5 4.5 3.3(*) 5.5 6.0 6.0 5.0(**) 4.0 4.5 4.5 3.3(*) 1.5 1.5 (**) 5.0 1.5 1.5 3.3(*) 4.0 4.5 c u d 5.0(**) 3.0 3.0 3.0 3.3 3.3(*) 140 5.0 Parameter o r P e CPD Power Dissipation Capacitance (note 1) t e l o VCC (V) (s) 250 o s b O - ct du 5.0 5.0 e t le 90 (**) Test Condition Input Capacitance -55 to 125°C Min. CAPACITIVE CHARACTERISTICS CIN -40 to 85°C (*) (*) Voltage range is 3.3V ± 0.3V (**) Voltage range is 5.0V ± 0.5V Symbol Value fIN = 10MHz Typ. o r P ns ) s t( ns ns 4.5 75 75 125 ns ns 1.5 125 ns ns MHz Value TA = 25°C Min. 1.5 Unit Max. -40 to 85°C -55 to 125°C Min. Min. Max. Unit Max. 4 pF 32 pF 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/8 (per circuit) s b O 5/11 74AC273 TEST CIRCUIT CL = 50pF or equivalent (includes jig and probe capacitance) RL = R1 = 500Ω or equivalent RT = ZOUT of pulse generator (typically 50Ω) c u d ) s t( WAVEFORM 1: PROPAGATION DELAYS, SETUP AND HOLD TIMES (f=1MHz; 50% duty cycle) e t le ) s ( ct u d o r P e t e l o s b O 6/11 o s b O - o r P 74AC273 WAVEFORM 2: PROPAGATION DELAYS (f=1MHz; 50% duty cycle) c u d WAVEFORM 3: RECOVERY TIME (f=1MHz; 50% duty cycle) e t le ) s ( ct ) s t( o r P o s b O - u d o r P e t e l o s b O 7/11 74AC273 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 I 3.93 L c u d e t le 3.3 Z 1.34 ) s ( ct o s b O - o r P ) s t( 0.280 0.155 0.130 0.053 u d o r P e t e l o s b O P001J 8/11 74AC273 SO-20 MECHANICAL DATA mm DIM. MIN. TYP. A inch MAX. MIN. TYP. a1 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 E 10.00 10.65 0.393 0.419 c u d e 1.27 0.050 e3 11.43 0.450 F 7.40 7.60 0.291 L 0.50 1.27 0.19 M e t le 0.75 S 8 (max.) ) s ( ct ) s t( 0.512 o r P 0.299 0.050 0.029 o s b O - u d o r P e t e l o s b O P013L 9/11 74AC273 TSSOP20 MECHANICAL DATA mm DIM. MIN. inch TYP. MAX. A TYP. MAX. 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 E 6.25 6.4 6.5 0.246 0.252 E1 4.3 4.4 4.48 0.169 0.173 e r P e t le 0.65 BSC o K 0 L 0.50 A o r P e o 4 8 0.60 0.70 ) s ( ct du b e o s b O - o s b O 1 od 0.256 0.176 4o 8o 0.020 0.024 0.028 K L E c E1 PIN 1 IDENTIFICATION uc 0 D t e l o ) s t( 0.260 0.0256 BSC o A2 A1 10/11 MIN. 74AC273 c u d e t le ) s ( ct ) s t( o r P o s b O - u d o r P e t e l o s b O 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. © The ST logo is a registered trademark of STMicroelectronics © 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 © http://www.st.com 11/11