M54HC298 M74HC298 QUAD 2 CHANNEL MULTIPLEXER/REGISTER . . . . . . . . HIGH SPEED fMAX = 73 MHz (typ.) AT VCC = 5 V LOW POWER DISSIPATION ICC = 4 µA (MAX.) AT TA = 25 °C HIGH NOISE IMMUNITY VNIH = VNIL = 28 % VCC (MIN.) OUTPUT DRIVE CAPABILITY 10 LSTTL LOADS SYMMETRICAL OUTPUT IMPEDANCE IOH = IOL = 4 mA (MIN.) BALANCED PROPAGATION DELAYS tPLH = tPHL WIDE OPERATING VOLTAGE RANGE VCC (OPR) = 2 V TO 6 V PIN AND FUNCTION COMPATIBLE WITH 54/74LS298 DESCRIPTION The M54/74HC298 is a high speed CMOS QUAD 2CHANNEL MULTIPLEXER/REGISTER fabricated in silicon gate C 2MOS technology. B1R (Plastic Package) F1R (Ceramic Package) M1R (Micro Package) C1R (Chip Carrier) ORDER CODES : M54HC298F1R M74HC298M1R M74HC298B1R M74HC298C1R PIN CONNECTIONS (top view) It has the same high speed performance of LSTTL combined with true CMOS low power consumption. These circuits are controlled by the signals WORD SELECT and CLOCK. When the WORD SELECT input is taken low Word 1 (A1, B1, C1 and D1) is presented to the input of the flip-flops, and when WORD SELECT is high Word 2 (A2, B2, C2 and D2) is presented to the inputs of the flip-flops. The select word is clocked to the output terminals on the negative edge of the clock pulse. All inputs are equipped with protection circuits against static discharge and transient excess voltage. INPUT AND OUTPUT EQUIVALENT CIRCUIT NC = No Internal Connection October 1992 1/11 M54/M74HC298 TRUTH TABLE INPUTS WORD SELECT L OUTPUTS CLOCK QA a1 QB b1 QC c1 QD d1 H a2 b2 c2 d2 X QA0 QB0 QC0 QD0 X : DON’T CARE (INCLUDING TRANSITION) a1, a2, ETC : THE LEVEL OF STEAY STATE INPUT AT a1, a2, etc. QA0, QB0, ETC : THE LEVEL OF QA, QB, ETC ENTERED ON THE MOST RECENT NEGATIVE TRANSITION OF THE CLOCK INPUT. LOGIC DIAGRAM 2/11 M54/M74HC298 PIN DESCRIPTION IEC LOGIC SYMBOL PIN No SYMBOL NAME AND FUNCTION 1, 2, 5, 6 A2, B2, C2, D2 A1, B1, C1, D1 QA to QD Word 2 Data Inputs 10 WORD SELECT Word Select Input 11 CLOCK Clock Input (HIGH to LOW, Edge-triggered) 8 16 GND V CC 3, 4, 7, 9 12 to 15 Word 1 Data Inputs Outputs Ground (0V) Positive Supply Voltage ABSOLUTE MAXIMUM RATINGS Symbol VCC Parameter Supply Voltage Value -0.5 to +7 Unit V VI DC Input Voltage -0.5 to VCC + 0.5 V VO IIK DC Output Voltage DC Input Diode Current -0.5 to VCC + 0.5 ± 20 V mA IOK DC Output Diode Current ± 20 mA DC Output Source Sink Current Per Output Pin DC VCC or Ground Current ± 25 ± 50 mA mA 500 (*) mW IO ICC or IGND PD Power Dissipation Tstg TL Storage Temperature Lead Temperature (10 sec) -65 to +150 300 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 Parameter Supply Voltage VI Input Voltage VO Top Output Voltage Operating Temperature: M54HC Series M74HC Series tr, tf Input Rise and Fall Time Value 2 to 6 Unit V 0 to VCC V 0 to VCC -55 to +125 -40 to +85 VCC = 2 V 0 to 1000 VCC = 4.5 V VCC = 6 V 0 to 500 0 to 400 V C o C o ns 3/11 M54/M74HC298 DC SPECIFICATIONS Test Conditions Symbol VIH V IL Parameter High Level Input Voltage Low Level Input Voltage Value VCC (V) TA = 25 oC 54HC and 74HC Min. Typ. Max. 2.0 1.5 1.5 1.5 4.5 6.0 3.15 4.2 3.15 4.2 3.15 4.2 High Level Output Voltage 0.5 0.5 0.5 4.5 1.35 1.35 1.35 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 4/11 Input Leakage Current Quiescent Supply Current 6.0 6.0 1.8 1.8 Unit V 2.0 6.0 V OH -40 to 85 oC -55 to 125 oC 74HC 54HC Min. Max. Min. Max. V 1.8 1.9 2.0 1.9 1.9 VI = IO=-20 µA VIH or V IL IO=-4.0 mA 4.4 5.9 4.5 6.0 4.4 5.9 4.4 5.9 4.18 4.31 4.13 4.10 IO=-5.2 mA 5.68 5.8 0.0 5.63 5.60 V VI = IO= 20 µA VIH or V IL IO= 4.0 mA 0.1 0.1 0.1 0.0 0.1 0.1 0.1 0.0 0.17 0.1 0.26 0.1 0.33 0.1 0.40 IO= 5.2 mA 0.18 V 0.26 0.33 0.40 VI = VCC or GND ±0.1 ±1 ±1 µA VI = VCC or GND 4 40 80 µA M54/M74HC298 AC ELECTRICAL CHARACTERISTICS (C L = 50 pF, Input t r = tf = 6 ns) Test Conditions o TA = 25 C 54HC and 74HC Symbol Parameter VCC (V) tTLH tTHL Output Transition Time 2.0 4.5 Typ. 30 8 Max. 75 15 tPLH tPHL Propagation Delay Time (CLOCK - Q) 6.0 2.0 4.5 6.0 7 45 15 13 13 125 25 21 fMAX Maximum Clock Frequency 2.0 4.5 6.0 2.0 4.5 Min. 7 35 41 Value -40 to 85 oC -55 to 125 oC 74HC 54HC Min. Max. 95 19 Min. 16 155 31 26 5.6 28 33 Max. 110 22 19 190 38 32 4.6 23 25 Unit ns ns 22 67 79 18 6 75 15 95 19 110 22 ns MHz tW(H) tW(L) Minimum Pulse Width (CLOCK) ts Minimum Set-up Time (A, B, C, D) 6.0 2.0 4.5 6.0 6 12 3 2 13 50 10 9 16 65 13 11 19 75 15 13 ns Minimum Set-up Time (W. S.) 2.0 4.5 6.0 30 8 6 75 15 13 95 19 16 110 22 19 ns Minimum Hold Time (A, B, C, D) 2.0 4.5 25 5 30 6 40 8 ns 6.0 2.0 4 0 5 0 7 0 4.5 6.0 0 0 0 0 0 0 ns 10 10 10 pF ts th th CIN CPD (*) Minimum Hold Time (W. S.) Input Capacitance Power Dissipation Capacitance 5 39 pF (*) 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/4 (per bit), and the CPD for operating current can be obtained by the following equation: CPD = 27 + 12 x n 5/11 M54/M74HC298 SWITCHING CHARACTERISTICS TEST WAVEFORM TEST CIRCUIT TRANSITION TIME AND VIH, VIL OF INPUT WAVEFORM IS THE SAME AS THAT IN CASE OF SWITCHING CHARACTERISTICS TEST. 6/11 M54/M74HC298 Plastic DIP16 (0.25) MECHANICAL DATA mm DIM. MIN. a1 0.51 B 0.77 TYP. inch MAX. MIN. TYP. MAX. 0.020 1.65 0.030 0.065 b 0.5 0.020 b1 0.25 0.010 D 20 0.787 E 8.5 0.335 e 2.54 0.100 e3 17.78 0.700 F 7.1 0.280 I 5.1 0.201 L Z 3.3 0.130 1.27 0.050 P001C 7/11 M54/M74HC298 Ceramic DIP16/1 MECHANICAL DATA mm DIM. MIN. TYP. inch MAX. MIN. TYP. MAX. A 20 0.787 B 7 0.276 D E 3.3 0.130 0.38 e3 0.015 17.78 0.700 F 2.29 2.79 0.090 0.110 G 0.4 0.55 0.016 0.022 H 1.17 1.52 0.046 0.060 L 0.22 0.31 0.009 0.012 M 0.51 1.27 0.020 0.050 N P Q 10.3 7.8 8.05 5.08 0.406 0.307 0.317 0.200 P053D 8/11 M54/M74HC298 SO16 (Narrow) MECHANICAL DATA mm DIM. MIN. TYP. A a1 inch MAX. MIN. TYP. 1.75 0.1 0.068 0.2 a2 MAX. 0.004 0.007 1.65 0.064 b 0.35 0.46 0.013 0.018 b1 0.19 0.25 0.007 0.010 C 0.5 0.019 c1 45° (typ.) D 9.8 E 5.8 10 0.385 6.2 0.228 0.393 0.244 e 1.27 0.050 e3 8.89 0.350 F 3.8 4.0 0.149 0.157 G 4.6 5.3 0.181 0.208 L 0.5 1.27 0.019 0.050 M S 0.62 0.024 8° (max.) P013H 9/11 M54/M74HC298 PLCC20 MECHANICAL DATA mm DIM. MIN. TYP. inch MAX. MIN. TYP. MAX. A 9.78 10.03 0.385 0.395 B 8.89 9.04 0.350 0.356 D 4.2 4.57 0.165 0.180 d1 2.54 0.100 d2 0.56 0.022 E 7.37 8.38 0.290 0.330 e 1.27 0.050 e3 5.08 0.200 F 0.38 0.015 G 0.101 0.004 M 1.27 0.050 M1 1.14 0.045 P027A 10/11 M54/M74HC298 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. 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 11/11