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| M54HCT157/158 M74HCT157/158 HCT157 QUAD 2 CHANNEL MULTIPLEXER HCT158 QUAD 2 CHANNEL MULTIPLEXER (INV.) .HI .LOWPOWERDI .COMPATI .OUTPUTDRI .SYMMETRI .BALANCEDPROPAGATI .PI GH SPEED tPD = 21 ns (TYP.) AT VCC = 5 V SSIPATION ICC = 4 A (MAX.) AT TA = 25 C BLE WITH TTL OUTPUTS VIH = 2V (MIN.) VIL = 0.8V (MAX) VE CAPABILITY 10 LSTTL LOADS CAL OUTPUT IMPEDANCE IOH = IOL = 4 mA (MIN.) ON DELAYS tPLH = tPHL N AND FUNCTION COMPATIBLE WITH 54/74LS157/158 B1R (Plastic Package) F1R (Ceramic Package) M1R (Micro Package) C1R (Chip Carrier) ORDER CODES : M54HCTXXXF1R M74HCTXXXM1R M74HCTXXXB1R M74HCTXXXC1R PIN CONNECTIONS (top view) HCT157 DESCRIPTION The M54/74HCT157 and the M54/74HCT158 are high speed CMOS QUAD 2-CHANNEL MULTIPLEXERs fabricated with silicon gate C2MOS technology. They achieve the high speed operation similar to equivalent LSTTL while maintaining the CMOS low power dissipation. These devices consist of four 2-input digital multiplexers with common select and strobe inputs. The HCT158 is an inverting multiplexer while the HCT157 is a non-inverting multiplexer. When the STROBE input is held High, selection of data is inhibited and all the outputs become Low in the M74HCT157 and High in the M74HCT158. The SELECT decoding determines whether the A or B inputs get routed to their corresponding Y outputs. All inputs are equipped with protection circuits against static discharge and transient excess voltage. M54/74HCT devices are designed to directly inter2 face HSC MOS systems with TTL and NMOS components. They are also plug in replacements for LSTTL devices giving a reduction of power consumption. April 1993 HCT158 NC = No Internal Connection 1/11 M54/M74HCT157 M54/M74HCT158 CHIP CARRIER HCT157 HCT158 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION (for HCT157) PIN No 1 2, 5, 11, 14 3, 6, 10, 13 4, 7, 9, 12 15 8 16 SYMBOL SELECT 1A to 4A 1B to 4B 1Y to 4Y STROBE GND VCC NAME AND FUNCTION Common Data Select Input Data Inputs From Source A Data Inputs From Source B Multiplexer Output Strobe Input Ground (0V) Positive Supply Voltage PIN DESCRIPTION (for HCT158) PIN No 1 2, 5, 11, 14 3, 6, 10, 13 4, 7, 9, 12 15 8 16 SYMBOL SELECT 1A to 4A 1B to 4B 1Y to 4Y STROBE GND VCC NAME AND FUNCTION Common Data Select Input Data Inputs From Source A Data Inputs From Source B Multiplexer Output Strobe Input Ground (0V) Positive Supply Voltage 2/11 M54/M74HCT157 M54/M74HCT158 TRUTH TABLE INPUTS STROBE H L L L L X: DON'T CARE OUTPUTS A X L H X X B X X X L H Y (HCT157) L L H L H Y (HCT158) H H L H L SELECT X L L H H IEC LOGIC SYMBOL HCT157 HCT158 LOGIC DIAGRAM HCT157 HCT158 3/11 M54/M74HCT157 M54/M74HCT158 ABSOLUTE MAXIMUM RATINGS Symbol VCC VI VO IIK IOK IO ICC or IGND PD Tstg TL 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) Parameter 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 = 4.5 to 5.5V) Value 4.5 to 5.5 0 to VCC 0 to VCC -55 to +125 -40 to +85 0 to 500 Unit V V V o o C C ns 4/11 M54/M74HCT157 M54/M74HCT158 DC SPECIFICATIONS Test Conditions Symbol Parameter VCC (V) 4.5 to 5.5 4.5 to 5.5 4.5 VI = IO=-20 A VIH or IO=-4.0 mA V IL VI = IO= 20 A VIH or IO= 4.0 mA V IL VI = VCC or GND VI = VCC or GND Per Input pin VI = 0.5V or V I = 2.4V Other Inputs at V CC or GND IO= 0 4.4 4.18 4.5 4.31 0.0 0.17 0.1 0.26 0.1 4 2.0 TA = 25 C 54HC and 74HC Min. Typ. Max. 2.0 o Value -40 to 85 oC -55 to 125 oC 74HC 54HC Min. Max. Min. Max. 2.0 2.0 Unit VIH High Level Input Voltage Low Level Input Voltage High Level Output Voltage V V IL 0.8 0.8 0.8 V V OH 4.4 4.13 0.1 0.33 1 40 2.9 4.4 4.10 0.1 V 0.4 1 80 3.0 A A mA V VOL Low Level Output Voltage 4.5 II ICC ICC Input Leakage Current Quiescent Supply Current Additional worst case supply current 5.5 5.5 5.5 5/11 M54/M74HCT157 M54/M74HCT158 AC ELECTRICAL CHARACTERISTICS (C L = 50 pF, Input t r = tf = 6 ns) Test Conditions Symbol Parameter VCC (V) 4.5 4.5 TA = 25 C 54HC and 74HC Min. Typ. Max. 8 16 15 25 o Value -40 to 85 oC -55 to 125 oC 74HC 54HC Min. Max. Min. Max. 19 31 22 38 Unit tTLH tTHL tPLH tPHL tPLH tPHL tPLH tPHL CIN CPD (*) Output Transition Time Propagation Delay Time (A, B - Y) Propagation Delay Time (SELECT - Y) Propagation Delay Time (STROBE - Y) Input Capacitance Power Dissipation Capacitance ns ns 4.5 19 30 38 45 ns 4.5 17 27 34 41 ns 5 HCT157 HCT158 50 60 10 10 10 pF 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/4 (per channel) SWITCHING CHARACTERISTICS TEST CIRCUIT TEST CIRCUIT ICC (Opr.) INPUT WAVEFORM IS THE SAME AS THAT IN CASE OF SWITCHING CHARACTERISTICS TEST. 6/11 M54/M74HCT157 M54/M74HCT158 Plastic DIP16 (0.25) MECHANICAL DATA mm MIN. a1 B b b1 D E e e3 F I L Z 3.3 1.27 8.5 2.54 17.78 7.1 5.1 0.130 0.050 0.51 0.77 0.5 0.25 20 0.335 0.100 0.700 0.280 0.201 1.65 TYP. MAX. MIN. 0.020 0.030 0.020 0.010 0.787 0.065 inch TYP. MAX. DIM. P001C 7/11 M54/M74HCT157 M54/M74HCT158 Ceramic DIP16/1 MECHANICAL DATA mm MIN. A B D E e3 F G H L M N P Q 7.8 2.29 0.4 1.17 0.22 0.51 0.38 17.78 2.79 0.55 1.52 0.31 1.27 10.3 8.05 5.08 0.307 0.090 0.016 0.046 0.009 0.020 3.3 0.015 0.700 0.110 0.022 0.060 0.012 0.050 0.406 0.317 0.200 TYP. MAX. 20 7 0.130 MIN. inch TYP. MAX. 0.787 0.276 DIM. P053D 8/11 M54/M74HCT157 M54/M74HCT158 SO16 (Narrow) MECHANICAL DATA DIM. MIN. A a1 a2 b b1 C c1 D E e e3 F G L M S 3.8 4.6 0.5 9.8 5.8 1.27 8.89 4.0 5.3 1.27 0.62 8 (max.) 0.149 0.181 0.019 10 6.2 0.35 0.19 0.5 45 (typ.) 0.385 0.228 0.050 0.350 0.157 0.208 0.050 0.024 0.393 0.244 0.1 mm TYP. MAX. 1.75 0.2 1.65 0.46 0.25 0.013 0.007 0.019 0.004 MIN. inch TYP. MAX. 0.068 0.007 0.064 0.018 0.010 P013H 9/11 M54/M74HCT157 M54/M74HCT158 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 10/11 M54/M74HCT157 M54/M74HCT158 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 11/11 |
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