M54HC155 M74HC155 DUAL 2 TO 4 LINE DECODER 3 TO 8 LINE DECODER . . . . . . . . HIGH SPEED tPD = 12 ns (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 54/74LS155 B1R (Plastic Package) F1R (Ceramic Package) M1R (Micro Package) C1R (Chip Carrier) ORDER CODES : M54HC155F1R M74HC155M1R M74HC155B1R M74HC155C1R PIN CONNECTIONS (top view) DESCRIPTION The M54/74HC155 is a high speed CMOS DUAL 2TO-4 LINE DECODER fabricated in silicon gate C2MOS technology. It has the same high speed performance of LSTTL combined with true CMOS low power consumption. It features dual 1-TO-4 line demultiplexers with individual strobe inputs (1G and 2G), individual data inputs (1C and 2C) and common binary address inputs (A and B). When both decoders are enabled by the strobes, the inverted output of 1C data and non-inverted output of 2C data will be brought to the select output pins of each sections. A 1-TO-8 line demultiplexer can also be easily built up by providing a data signal to both 1C and 2C inputs ; the output order from the msb is 1Y3, 1Y2, 1Y1, 1Y0, 2Y3, 2Y2, 2Y1, 2Y0. This device can be used as a 2-to-4 line decoder or a 3-to-8 line decoder when 1C is held high and 2C is held low. All inputs are equipped with protection circuits against static discharge and transient excess voltage. December 1992 NC = No Internal Connection 1/11 M54/M74HC155 INPUT AND OUTPUT EQUIVALENT CIRCUIT IEC LOGIC SYMBOL PIN DESCRIPTION PIN No SYMBOL 1, 15 1C, 2C Data Inputs 2, 14 3, 13 1G, 2G B, A Strobe Inputs Common Data Inputs 7, 6, 5, 4 1Y0 to 1Y3 9, 10, 11, 12 2Y0 to 2Y3 8 GND 16 NAME AND FUNCTION Outputs Outputs Ground (0V) Positive Supply Voltage VCC TRUTH TABLE TRUTH TABLE B INPUTS A 1G 1C 1Y0 1Y3 X X H X H H H H L L L H L L H H L H H L H H H L L H H H H X H X L X H L H H H H 2/11 OUTPUTS 1Y1 1Y2 B INPUTS A 2G OUTPUTS 2Y1 2Y2 2C 2Y0 X X H X H H H H H H L L L H L L L L L H H L H H H H L H H L L L H H L H H H L H H X H X L X L H H H H H H H L H 2Y3 M54/M74HC155 LOGIC CIRCUIT ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit VCC VI Supply Voltage DC Input Voltage -0.5 to +7 -0.5 to VCC + 0.5 V V VO DC Output Voltage -0.5 to VCC + 0.5 V IIK IOK DC Input Diode Current DC Output Diode Current ± 20 ± 20 mA mA IO DC Output Source Sink Current Per Output Pin ICC or IGND PD DC VCC or Ground Current Power Dissipation Tstg Storage Temperature TL Lead Temperature (10 sec) ± 25 mA ± 50 500 (*) mA mW -65 to +150 o C 300 o 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 3/11 M54/M74HC155 RECOMMENDED OPERATING CONDITIONS Symbol Parameter Value Unit V V VCC VI Supply Voltage Input Voltage 2 to 6 0 to VCC VO Output Voltage 0 to VCC Top tr, tf Operating Temperature: M54HC Series M74HC Series Input Rise and Fall Time V o -55 to +125 -40 to +85 0 to 1000 VCC = 2 V VCC = 4.5 V 0 to 500 VCC = 6 V 0 to 400 C C ns o DC SPECIFICATIONS Test Conditions Symbol VIH V IL V OH VOL Parameter High Level Input Voltage Low Level Input Voltage High Level Output Voltage Low Level Output Voltage VCC (V) 2.0 Min. 1.5 4.5 3.15 6.0 2.0 4.2 6.0 2.0 ICC 4/11 Quiescent Supply Current Max. -40 to 85 oC -55 to 125 oC 74HC 54HC Min. 1.5 Max. 3.15 Min. 1.5 4.2 4.2 0.5 0.5 1.35 1.35 1.35 1.8 2.0 1.9 1.9 4.5 4.4 4.4 6.0 4.5 5.9 4.18 6.0 4.31 5.9 4.13 5.9 4.10 6.0 IO=-5.2 mA 5.68 5.8 5.63 5.60 6.0 6.0 V 1.8 1.9 4.4 2.0 4.5 V 0.5 1.8 Unit Max. 3.15 VI = IO=-20 µA VIH or V IL IO=-4.0 mA 4.5 4.5 6.0 Input Leakage Current Typ. 4.5 6.0 II Value TA = 25 oC 54HC and 74HC V 0.0 0.0 0.1 0.1 0.1 0.1 0.1 0.1 0.0 0.1 0.1 0.1 0.17 0.18 0.26 0.26 0.33 0.33 0.40 0.40 VI = VCC or GND ±0.1 ±1 ±1 µA VI = VCC or GND 4 40 80 µA VI = IO= 20 µA VIH or V IL IO= 4.0 mA IO= 5.2 mA V M54/M74HC155 AC ELECTRICAL CHARACTERISTICS (C L = 50 pF, Input t r = tf = 6 ns) Test Conditions Symbol Parameter tTLH tTHL Output Transition Time tPLH tPHL Propagation Delay Time Value o VCC (V) TA = 25 C 54HC and 74HC Min. Typ. Max. -40 to 85 oC -55 to 125 oC 74HC 54HC Min. Max. Min. Max. 2.0 30 75 95 110 4.5 6.0 8 7 15 13 19 16 22 19 2.0 45 130 165 195 4.5 15 26 33 39 6.0 13 22 28 33 10 10 10 CIN Input Capacitance 5 CPD (*) Power Dissipation Capacitance 53 Unit ns ns pF 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 SWITCHING CHARACTERISTICS TEST WAVEFORM 5/11 M54/M74HC155 TEST WAVEFORM ICC (Opr.) INPUT WAVEFORM IS THE SAME AS THAT IN CASE OF SWITCHING CHARACTERISTICS TEST. 6/11 M54/M74HC155 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/M74HC155 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/M74HC155 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/M74HC155 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/M74HC155 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