M74HC244RM13TR

M74HC244 OCTAL BUS BUFFER WITH 3 STATE OUTPUTS (NON INVERTED) ■ ■ ■ ■ ■ ■ ■ HIGH SPEED: tPD = 10ns (TYP.) at VCC = 6V LOW POWER DISSIPATION: ICC = 4µA(MAX.) at TA=25°C HIGH NOISE IMMUNITY: VNIH = V NIL = 28 % VCC (MIN.) SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 6mA (MIN) BALANCED PROPAGATION DELAYS: tPLH ≅ tPHL WIDE OPERATING VOLTAGE RANGE: VCC (OPR) = 2V to 6V PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 244 DESCRIPTION The 74HC244 is an advanced high-speed CMOS OCTAL BUS BUFFER (3-STATE) fabricated with silicon gate C2MOS technology. G control input governs four BUS BUFFERs. ) (s t c u DIP PACKAGE TUBE t e l o s b O TSSOP u d o r P e ORDER CODES DIP SOP TSSOP ) s ( ct SOP M74HC244B1R M74HC244M1R T&R M74HC244RM13TR M74HC244TTR This device is designed to be used with 3 state memory address drivers, etc. All inputs are equipped with protection circuits against static discharge and transient excess voltage. d o r P e t e l o s b O PIN CONNECTION AND IEC LOGIC SYMBOLS July 2001 1/10 M74HC244 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN No SYMBOL NAME AND FUNCTION 1 2, 4, 6, 8 9, 7, 5, 3 11, 13, 15, 17 18, 16, 14, 12 19 10 20 1G 1A1 to 1A4 2Y1 to 2Y4 2A1 to 2A4 Output Enable Input Data Inputs Data Outputs Data Inputs 1Y1 to 1Y4 Data Outputs Output Enable Input Ground (0V) Positive Supply Voltage 2G GND VCC ) s ( ct TRUTH TABLE u d o INPUTS G An L L H L H X X : Don’t Care Z : High Impedance ABSOLUTE MAXIMUM RATINGS Symbol ) (s Parameter s b O t c u Supply Voltage VCC e t e ol VI DC Input Voltage VO DC Output Voltage IIK DC Input Diode Current IOK DC Output Diode Current od ete IO Pr DC Output Current ICC or IGND DC VCC or Ground Current PD Power Dissipation l o s b O Tstg Storage Temperature TL Lead Temperature (10 sec) Pr OUTPUT Yn L H Z Value Unit -0.5 to +7 V -0.5 to VCC + 0.5 V -0.5 to VCC + 0.5 ± 20 V mA ± 20 mA ± 35 mA ± 70 mA 500(*) mW -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 (*) 500mW at 65 °C; derate to 300mW by 10mW/ °C from 65°C to 85°C RECOMMENDED OPERATING CONDITIONS Symbol VCC Parameter Supply Voltage Unit 2 to 6 V VI Input Voltage 0 to VCC V VO Output Voltage 0 to VCC V Top Operating Temperature Input Rise and Fall Time tr, tf 2/10 Value -55 to 125 °C VCC = 2.0V 0 to 1000 ns VCC = 4.5V 0 to 500 ns VCC = 6.0V 0 to 400 ns M74HC244 DC SPECIFICATIONS Test Conditions Symbol VIH Parameter High Level Input Voltage Low Level Input Voltage VIL VOH VOL II High Level Output Voltage Low Level Output Voltage IOZ Input Leakage Current High Impedance Output Leakage Current Quiescent Supply Current ICC Value TA = 25°C VCC (V) Min. 2.0 4.5 6.0 2.0 4.5 6.0 Typ. Max. 1.5 3.15 4.2 -40 to 85°C -55 to 125°C Min. Min. Max. 1.5 3.15 4.2 0.5 1.35 1.8 1.9 2.0 1.9 1.9 IO=-20 µA 4.4 4.5 4.4 4.4 du IO=-20 µA 5.9 6.0 5.9 4.18 4.31 4.13 5.68 5.9 6.0 IO=-7.8 mA 2.0 IO=20 µA 0.0 0.1 4.5 IO=20 µA 0.0 0.1 o r P 6.0 IO=20 µA 0.0 0.1 4.5 IO=6.0 mA 0.17 6.0 IO=7.8 mA 0.18 6.0 5.8 5.63 V ) s ( ct IO=-20 µA 4.5 IO=-6.0 mA V 0.5 1.35 1.8 2.0 4.5 Max. 1.5 3.15 4.2 0.5 1.35 1.8 6.0 Unit V 4.10 5.60 0.1 0.1 0.1 0.1 0.1 0.1 0.26 0.33 0.40 0.26 0.33 0.40 VI = VCC or GND ± 0.1 ±1 ±1 µA 6.0 VI = VIH or VIL VO = VCC or GND ± 0.5 ±5 ± 10 µA 6.0 VI = VCC or GND 4 40 80 µA ) (s d o r t c u e t e l b O so V P e t e l o s b O 3/10 M74HC244 AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6ns) Test Conditions Symbol Parameter tTLH tTHL Output Transition Time 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 tPLH tPHL Propagation Delay Time tPZL tPZH High Impedance Output Enable Time tPLZ tPHZ High Impedance Output Disable Time TA = 25°C CL (pF) VCC (V) Value Min. 50 50 150 50 RL = 1 KΩ 150 RL = 1 KΩ 50 RL = 1 KΩ CAPACITIVE CHARACTERISTICS Typ. Max. 25 7 6 36 12 10 51 17 14 48 16 14 63 21 18 32 15 14 60 12 10 90 18 15 130 26 22 125 25 21 165 33 28 125 25 21 s ( t c CIN e t e l so b O o r P Input Capacitance COUT CPD du Parameter Output Capacitance Power Dissipation Capacitance (note 1) VCC (V) Min. Max. 75 19 13 115 23 20 165 33 28 155 31 25 205 41 35 155 31 26 Unit Max. 90 18 15 135 27 23 195 39 33 190 38 32 250 50 43 190 38 32 ns ns ) s ( ct u d o ns ns ns ns Value TA = 25°C Min. Min. let Test Condition Symbol -55 to 125°C r P e o s b O ) -40 to 85°C -40 to 85°C -55 to 125°C Min. Min. Max. Unit Typ. Max. 5.0 5 10 5.0 10 pF 5.0 33 pF 10 Max. 10 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) = C PD x VCC x fIN + ICC/8 (per circuit) 4/10 M74HC244 TEST CIRCUIT ) s ( ct u d o TEST tPLH, tPHL tPZL, tPLZ e t e ol tPZH, tPHZ CL = 50pF/150pF or equivalent (includes jig and probe capacitance) R1 = 1KΩ or equivalent RT = ZOUT of pulse generator (typically 50Ω) Pr SWITCH Open VCC GND s b O WAVEFORM 1: PROPAGATION DELAY TIMES (f=1MHz; 50% duty cycle) ) (s t c u d o r P e t e l o s b O 5/10 M74HC244 WAVEFORM 2 : OUTPUT ENABLE AND DISABLE TIMES (f=1MHz; 50% duty cycle) ) s ( ct u d o r P e t e l o ) (s t c u d o r P e t e l o s b O 6/10 s b O M74HC244 Plastic DIP-20 (0.25) MECHANICAL DATA mm. inch DIM. MIN. a1 0.254 B 1.39 TYP MAX. MIN. TYP. MAX. 0.010 1.65 0.055 0.065 b 0.45 0.018 b1 0.25 0.010 D ) s ( ct 25.4 E 8.5 e 2.54 e3 22.86 u d o 0.335 7.1 I 3.93 s ( t c 1.34 e t e ol bs O ) 3.3 Z Pr 0.100 F L 1.000 0.900 0.280 0.155 0.130 0.053 u d o r P e t e l o s b O P001J 7/10 M74HC244 SO-20 MECHANICAL DATA mm. inch DIM. MIN. TYP A MAX. MIN. TYP. a1 2.65 MAX. 0.1 0.104 0.2 a2 0.004 0.008 2.45 0.096 b 0.35 0.49 0.014 b1 0.23 0.32 0.009 C 0.5 0.019 ) s ( ct 0.012 0.020 c1 u d o 45° (typ.) D 12.60 13.00 0.496 E 10.00 10.65 0.393 e 1.27 e3 11.43 F 7.40 7.60 L 0.50 1.27 M ) (s S e t e ol s b O 0.75 Pr 0.512 0.419 0.050 0.450 0.291 0.300 0.020 0.050 0.029 8° (max.) t c u d o r P e t e l o s b O PO13L 8/10 M74HC244 TSSOP20 MECHANICAL DATA mm. inch DIM. MIN. TYP MAX. A MIN. TYP. MAX. 1.2 A1 0.05 A2 0.8 b 0.047 0.15 0.002 0.004 0.006 1.05 0.031 0.039 0.041 0.19 0.30 0.007 c 0.09 0.20 0.004 D 6.4 6.5 6.6 0.252 E 6.2 6.4 6.6 0.244 E1 4.3 4.4 4.48 1 e bs 0.65 BSC K 0° L 0.45 let o s b 0.60 s ( t c 0.75 du ro P e 0.0089 0.256 0.260 0.252 0.260 0.173 0.176 0.0256 BSC 0° 8° 0.018 0.024 0.030 u d o r P e A O ) 8° 0.012 t e l o 0.169 ) s ( ct A2 A1 b O K e L E c D E1 PIN 1 IDENTIFICATION 1 0087225C 9/10 M74HC244 ) s ( ct u d o r P e t e l o ) (s s b O t c 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 10/10