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| M54HC688 M74HC688 8 BIT EQUALITY COMPARATOR .HI .LOWPOWERDI .HI .OUTPUTDRI .SYMMETRI .BALANCEDPROPAGATI .WI .PI GH SPEED tPD = 17 ns (TYP.) AT VCC = 5 V SSIPATION ICC = 4 A (MAX.) AT TA = 25 C GH NOISE IMMUNITY VNIH = VNIL = 28 % VCC (MIN.) VE CAPABILITY 10 LSTTL LOADS CAL OUTPUT IMPEDANCE |IOH| = IOL = 4 mA (MIN.) ON DELAYS tPLH = tPHL DE OPERATING VOLTAGE RANGE VCC (OPR) = 2 V TO 6 V N AND FUNCTION COMPATIBLE WITH 54/74LS688 B1R (Plastic Package) F1R (Ceramic Package) M1R (Micro Package) C1R (Chip Carrier) ORDER CODES : M54HC688F1R M74HC688M1R M74HC688B1R M74HC688C1R PIN CONNECTIONS (top view) DESCRIPTION The M54/74HC688 utilizes silicon gate C2MOS technology to achieve operating speeds equivalent to LSTTL devices. Along with the low power dissi2 pation and high noise immunity of standard C MOS integrated circuit, it possesses the driving capability of 10 LSTTL load. The M54/74HC688 compares bit for bit two 8-bit words applied on inputs P0 - P7 and inputs Q0 - Q7 and indicates whether or not they are equal. A single active low enable is provided to facilitate cascading several packages to enable comparison of words greater than 8 bits. All inputs are equipped with protection circuit against static discharge and transient excess voltage. October 1992 NC = No Internal Connection 1/10 M54/M74HC688 INPUT AND OUTPUT EQUIVALENT CIRCUIT TRUTH TABLE INPUT P, Q P=Q PQ X X: DON'T CARE OUTPUT G L L H P=Q L H H LOGIC DIAGRAM 2/10 M54/M74HC688 PIN DESCRIPTION PIN No 1 2, 4, 6, 8, 11, 13, 15, 17 3, 5, 7, 9, 12, 14, 16, 18 19 10 20 SYMBOL G P0 to P7 NAME AND FUNCTION Enable Input (Active LOW) Word Inputs IEC LOGIC SYMBOL Q0 to Q7 Word Outputs P=Q GND V CC Equal to Output Ground (0V) Positive Supply Voltage ABSOLUTE MAXIMUM RATINGS Symbol VCC VI VO IIK IOK IO ICC or IGND PD Tstg TL Parameter Supply Voltage DC Input Voltage DC Output Voltage DC Input Diode Current DC Output Diode Current DC Output Source Sink Current Per Output Pin DC VCC or Ground Current Power Dissipation Storage Temperature Lead Temperature (10 sec) Value -0.5 to +7 -0.5 to VCC + 0.5 -0.5 to VCC + 0.5 20 20 25 50 500 (*) -65 to +150 300 Unit V V V mA mA mA mA mW o o C C Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition isnotimplied. (*) 500 mW: 65 oC derate to 300 mW by 10mW/oC: 65 oC to 85 oC RECOMMENDED OPERATING CONDITIONS Symbol VCC VI VO Top tr, tf Parameter Supply Voltage Input Voltage Output Voltage Operating Temperature: M54HC Series M74HC Series Input Rise and Fall Time VCC = 2 V VCC = 4.5 V VCC = 6 V Value 2 to 6 0 to VCC 0 to VCC -55 to +125 -40 to +85 0 to 1000 0 to 500 0 to 400 Unit V V V C o C o ns 3/10 M54/M74HC688 DC SPECIFICATIONS Test Conditions Symbol Parameter VCC (V) 2.0 4.5 6.0 2.0 4.5 6.0 V OH High Level Output Voltage 2.0 4.5 6.0 4.5 VOL Low Level Output Voltage 6.0 2.0 4.5 6.0 4.5 6.0 II ICC Input Leakage Current Quiescent Supply Current 6.0 6.0 VI = IO=-20 A VIH or V IL IO=-4.0 mA IO=-5.2 mA VI = IO= 20 A VIH or V IL IO= 4.0 mA IO= 5.2 mA VI = VCC or GND VI = VCC or GND 1.9 4.4 5.9 4.18 5.68 2.0 4.5 6.0 4.31 5.8 0.0 0.0 0.0 0.17 0.18 0.1 0.1 0.1 0.26 0.26 0.1 4 TA = 25 oC 54HC and 74HC Min. Typ. Max. 1.5 3.15 4.2 0.5 1.35 1.8 1.9 4.4 5.9 4.13 5.63 0.1 0.1 0.1 0.33 0.33 1 40 Value -40 to 85 oC -55 to 125 oC 74HC 54HC Min. Max. Min. Max. 1.5 3.15 4.2 0.5 1.35 1.8 1.9 4.4 5.9 4.10 5.60 0.1 0.1 0.1 0.40 0.40 1 80 A A V V 1.5 3.15 4.2 0.5 1.35 1.8 V V Unit VIH High Level Input Voltage Low Level Input Voltage V IL 4/10 M54/M74HC688 AC ELECTRICAL CHARACTERISTICS (C L = 50 pF, Input t r = tf = 6 ns) Test Conditions Symbol Parameter VCC (V) 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 TA = 25 oC 54HC and 74HC Min. Typ. Max. 30 8 7 60 21 17 40 13 10 5 32 75 15 13 170 34 29 110 22 19 10 Value -40 to 85 oC -55 to 125 oC 74HC 54HC Min. Max. Min. Max. 95 19 16 215 43 37 140 28 24 10 110 22 19 255 51 43 165 33 28 10 ns pF pF ns ns Unit tTLH tTHL tPLH tPHL tPLH tPHL CIN CPD (*) Output Transition Time Propagation Delay Time (Pn, Qn - P = Q) Propagation Delay Time (G - P = Q) Input Capacitance Power Dissipation Capacitance (*) 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 operting current can be obtained by the following equation. ICC(opr) = CPD *VCC *fIN + ICC SWITCHING CHARACTERISTICS TEST WAVEFORM TEST CIRCUIT ICC (Opr.) INPUT WAVEFORM IS THE SAME AS THAT IN CASE OF SWITCHING CHARACTERISTICS TEST. 5/10 M54/M74HC688 Plastic DIP20 (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 6/10 M54/M74HC688 Ceramic DIP20 MECHANICAL DATA mm MIN. A B D E e3 F G I L M N1 P Q 7.9 2.29 0.4 1.27 0.22 0.51 0.5 22.86 2.79 0.55 1.52 0.31 1.27 0.090 0.016 0.050 0.009 0.020 3.3 1.78 0.020 0.900 0.110 0.022 0.060 0.012 0.050 TYP. MAX. 25 7.8 0.130 0.070 MIN. inch TYP. MAX. 0.984 0.307 DIM. 4 (min.), 15 (max.) 8.13 5.71 0.311 0.320 0.225 P057H 7/10 M54/M74HC688 SO20 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 8/10 M54/M74HC688 PLCC20 MECHANICAL DATA mm MIN. A B D d1 d2 E e e3 F G M M1 1.27 1.14 7.37 1.27 5.08 0.38 0.101 0.050 0.045 9.78 8.89 4.2 2.54 0.56 8.38 0.290 0.050 0.200 0.015 0.004 TYP. MAX. 10.03 9.04 4.57 MIN. 0.385 0.350 0.165 0.100 0.022 0.330 inch TYP. MAX. 0.395 0.356 0.180 DIM. P027A 9/10 M54/M74HC688 Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsability for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may results from its use. No license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use ascritical components in life support devices or systems without express written approval of SGS-THOMSON Microelectonics. (c) 1994 SGS-THOMSON Microelectronics - All Rights Reserved SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A 10/10 |
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