The MC74AC151/74ACT151 is a high-speed 8-input digital multiplexer. It provides, in one package, the ability to select one line of data from up to eight sources. The MC74AC151/74ACT151 can be used as a universal function generator to generate any logic function of four variables. Both true and complementary outputs are provided. 1-OF-8 DECODER/DEMULTIPLEXER • Outputs Source/Sink 24 mA • ′ACT151 Has TTL Compatible Inputs VCC 16 I4 15 I5 14 I6 13 I7 12 S0 11 S1 10 N SUFFIX CASE 648-08 PLASTIC S2 9 PIN NAMES 1 2 3 4 5 6 7 8 I3 I2 I1 I0 Z Z E GND I0–I7 S0–S2 E Z Z Data Inputs Select Inputs Enable Input Data Output Inverted Data Output D SUFFIX CASE 751B-05 PLASTIC LOGIC SYMBOL TRUTH TABLE Inputs Outputs E S2 S1 S0 Z Z H L L L L L L L L X L L L L H H H H X L L H H L L H H X L H L H L H L H H I0 I1 I2 I3 I4 I5 I6 I7 L I0 I1 I2 I3 I4 I5 I6 I7 S0 E I0 I1 I2 I3 I4 I5 I6 I7 S1 S2 H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial FACT DATA 5-1 Z Z MC74AC151 MC74ACT151 FUNCTIONAL DESCRIPTION The MC74AC151/74ACT151 provides the ability, in one package, to select from eight sources of data or control information. By proper manipulation of the inputs, the MC74AC151/74ACT151 can provide any logic function of four variables and its complement. The MC74AC151/74ACT151 is a logic implementation of a single pole, 8-position switch with the switch position controlled by the state of three Select inputs, S0, S1, S2. Both true and complementary outputs are provided. The Enable input (E) is active LOW. When it is not activated, the complementary output is HIGH and the true output is LOW regardless of all other inputs. The logic function provided at the output is: Z = E•(I0•S0•S1•S2+I1•S0•S1•S2+ I2•S0•S1•S2+I3•S0•S1•S2+ I4•S0•S1•S2+I5•S0•S1•S2+ I6•S0•S1•S2+I7•S0•S1•S2) LOGIC DIAGRAM I0 I1 I2 I3 I4 I5 I6 I7 S2 S1 S0 E Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays. Z Z MAXIMUM RATINGS* Symbol Parameter Value Unit –0.5 to +7.0 V VCC DC Supply Voltage (Referenced to GND) Vin DC Input Voltage (Referenced to GND) –0.5 to VCC +0.5 V Vout DC Output Voltage (Referenced to GND) –0.5 to VCC +0.5 V Iin DC Input Current, per Pin ±20 mA Iout DC Output Sink/Source Current, per Pin ±50 mA ICC DC VCC or GND Current per Output Pin ±50 mA Tstg Storage Temperature –65 to +150 °C * Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the Recommended Operating Conditions. FACT DATA 5-2 MC74AC151 MC74ACT151 RECOMMENDED OPERATING CONDITIONS Symbol Parameter VCC Supply Voltage Vin, Vout DC Input Voltage, Output Voltage (Ref. to GND) tr, tf Input Rise and Fall Time (Note 2) ′ACT Devices except Schmitt Inputs TJ Junction Temperature (PDIP) TA Operating Ambient Temperature Range IOH IOL Typ Max ′AC 2.0 5.0 6.0 ′ACT 4.5 5.0 5.5 0 Input Rise and Fall Time (Note 1) ′AC Devices except Schmitt Inputs tr, tf Min Unit V VCC VCC @ 3.0 V 150 VCC @ 4.5 V 40 VCC @ 5.5 V 25 VCC @ 4.5 V 10 VCC @ 5.5 V 8.0 V ns/V ns/V 140 °C 85 °C Output Current — High –24 mA Output Current — Low 24 mA –40 25 1. Vin from 30% to 70% VCC; see individual Data Sheets for devices that differ from the typical input rise and fall times. 2. Vin from 0.8 V to 2.0 V; see individual Data Sheets for devices that differ from the typical input rise and fall times. DC CHARACTERISTICS Symbol Parameter VCC (V) 74AC 74AC TA = +25°C TA = –40°C to +85°C Typ VIH VIL VOH 1.5 2.25 2.75 2.1 3.15 3.85 2.1 3.15 3.85 V VOUT = 0.1 V or VCC – 0.1 V Maximum Low Level Input Voltage 3.0 4.5 5.5 1.5 2.25 2.75 0.9 1.35 1.65 0.9 1.35 1.65 V VOUT = 0.1 V or VCC – 0.1 V Minimum High Level Output Voltage 3.0 4.5 5.5 2.99 4.49 5.49 2.9 4.4 5.4 2.9 4.4 5.4 V 2.56 3.86 4.86 2.46 3.76 4.76 0.1 0.1 0.1 0.1 0.1 0.1 3.0 4.5 5.5 0.36 0.36 0.36 0.44 0.44 0.44 5.5 ±0.1 Maximum Low Level Output Voltage Maximum Input Leakage Current IOLD †Minimum Dynamic Output Current ICC Guaranteed Limits 3.0 4.5 5.5 IIN IOHD Conditions Minimum High Level Input Voltage 3.0 4.5 5.5 VOL Unit Maximum Quiescent Supply Current 3.0 4.5 5.5 0.002 0.001 0.001 IOUT = –50 µA V *VIN = VIL or VIH –12 mA IOH –24 mA –24 mA IOUT = 50 µA V V *VIN = VIL or VIH 12 mA IOL 24 mA 24 mA ±1.0 µA VI = VCC, GND 5.5 75 mA VOLD = 1.65 V Max 5.5 –75 mA VOHD = 3.85 V Min 80 µA VIN = VCC or GND 5.5 8.0 * All outputs loaded; thresholds on input associated with output under test. † Maximum test duration 2.0 ms, one output loaded at a time. Note: IIN and ICC @ 3.0 V are guaranteed to be less than or equal to the respective limit @ 5.5 V VCC. FACT DATA 5-3 MC74AC151 MC74ACT151 AC CHARACTERISTICS (For Figures and Waveforms — See Section 3) Symbol VCC* (V) Parameter 74AC 74AC TA = +25°C CL = 50 pF TA = –40°C to +85°C CL = 50 pF Min Typ Max Min Max Unit Fig. No. tPLH Propagation Delay Sn to Z or Z 3.3 5.0 3.0 2.5 11.5 8.5 18.0 13.0 3.0 2.0 20.0 15.0 ns 3-6 tPHL Propagation Delay Sn to Z or Z 3.3 5.0 2.5 2.0 12 8.5 18.0 13.0 2.5 1.5 20.0 15.0 ns 3-6 tPLH Propagation Delay E to Z or Z 3.3 5.0 2.5 2.0 8.0 6.0 13.0 10.0 2.0 1.5 14.0 11.0 ns 3-6 tPHL Propagation Delay E to Z or Z 3.3 5.0 1.5 1.5 8.5 6.5 13.0 10.0 1.5 1.5 14.0 11.0 ns 3-6 tPLH Propagation Delay In to Z or Z 3.3 5.0 2.5 1.5 9.5 7.0 14.0 10.5 2.0 1.5 15.5 11.0 ns 3-5 tPHL Propagation Delay In to Z or Z 3.3 5.0 2.5 1.5 9.5 7.0 15.0 11.0 2.0 1.5 16.0 12.0 ns 3-5 * Voltage Range 3.3 V is 3.3 V ± 0.3 V Voltage Range 5.0 V is 5.0 V ± 0.5 V DC CHARACTERISTICS Symbol Parameter VCC (V) 74ACT 74ACT TA = +25°C TA = –40°C to +85°C Typ Guaranteed Limits Unit Conditions VIH Minimum High Level Input Voltage 4.5 5.5 1.5 1.5 2.0 2.0 2.0 2.0 V VOUT = 0.1 V or VCC – 0.1 V VIL Maximum Low Level Input Voltage 4.5 5.5 1.5 1.5 0.8 0.8 0.8 0.8 V VOUT = 0.1 V or VCC – 0.1 V VOH Minimum High Level Output Voltage 4.5 5.5 4.49 5.49 4.4 5.4 4.4 5.4 V 3.86 4.86 3.76 4.76 0.1 0.1 0.1 0.1 4.5 5.5 0.36 0.36 0.44 0.44 V *VIN = VIL or VIH IOL 24 mA 24 mA Maximum Input Leakage Current 5.5 ±0.1 ±1.0 µA VI = VCC, GND Additional Max. ICC/Input 5.5 1.5 mA VI = VCC – 2.1 V †Minimum Dynamic Output Current 5.5 75 mA VOLD = 1.65 V Max 5.5 –75 mA VOHD = 3.85 V Min 80 µA VIN = VCC or GND 4.5 5.5 VOL IIN DICCT IOLD IOHD ICC Maximum Low Level Output Voltage Maximum Quiescent Supply Current 4.5 5.5 0.001 0.001 0.6 5.5 8.0 * All outputs loaded; thresholds on input associated with output under test. † Maximum test duration 2.0 ms, one output loaded at a time. FACT DATA 5-4 V V IOUT = –50 µA *VIN = VIL or VIH IOH –24 mA –24 mA IOUT = 50 µA MC74AC151 MC74ACT151 AC CHARACTERISTICS (For Figures and Waveforms — See Section 3) Symbol Parameter VCC* (V) 74ACT 74ACT TA = +25°C CL = 50 pF TA = –40°C to +85°C CL = 50 pF Min Typ Max Min Max Unit Fig. No. tPLH Propagation Delay Sn to Z 5.0 3.5 15.5 3.0 17.0 ns 3-6 tPHL Propagation Delay Sn to Z 5.0 3.5 15.5 3.0 16.5 ns 3-6 tPLH Propagation Delay Sn to Z 5.0 3.5 15 3.0 16.5 ns 3-6 tPHL Propagation Delay Sn to Z 5.0 4.0 16.5 3.5 18.5 ns 3-6 tPLH Propagation Delay E to Z 5.0 2.5 9.5 2.5 10.0 ns 3-6 tPHL Propagation Delay E to Z 5.0 2.5 9.0 2.5 10.0 ns 3-6 tPLH Propagation Delay E to Z 5.0 2.5 8.5 2.5 9.5 ns 3-6 tPHL Propagation Delay E to Z 5.0 3.0 10.0 2.5 10.5 ns 3-6 tPLH Propagation Delay In to Z 5.0 3.5 11.5 3.0 12.5 ns 3-6 tPHL Propagation Delay In to Z 5.0 3.5 12.0 3.0 13.5 ns 3-6 tPLH Propagation Delay In to Z 5.0 3.5 12.0 3.0 13.0 ns 3-6 tPHL Propagation Delay In to Z 5.0 4.0 12.5 3.0 14.0 ns 3-6 * Voltage Range 5.0 V is 5.0 V ± 0.5 V CAPACITANCE Symbol Parameter Value Typ Unit Test Conditions CIN Input Capacitance 4.5 pF VCC = 5.0 V CPD Power Dissipation Capacitance 70 pF VCC = 5.0 V FACT DATA 5-5 MC74AC151 MC74ACT151 OUTLINE DIMENSIONS N SUFFIX PLASTIC DIP PACKAGE CASE 648–08 ISSUE R –A– 16 9 1 8 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION L TO CENTER OF LEADS WHEN FORMED PARALLEL. 4. DIMENSION B DOES NOT INCLUDE MOLD FLASH. 5. ROUNDED CORNERS OPTIONAL. B F C DIM A B C D F G H J K L M S L S SEATING PLANE –T– K H G D M J 16 PL 0.25 (0.010) T A M M D SUFFIX PLASTIC SOIC PACKAGE CASE 751B–05 ISSUE J –A– 16 1 P 8 PL 0.25 (0.010) 8 M B S G R K F X 45 _ C –T– SEATING PLANE J M D 16 PL 0.25 (0.010) M T B S A S MILLIMETERS MIN MAX 18.80 19.55 6.35 6.85 3.69 4.44 0.39 0.53 1.02 1.77 2.54 BSC 1.27 BSC 0.21 0.38 2.80 3.30 7.50 7.74 0_ 10 _ 0.51 1.01 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSIONS A AND B DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 (0.006) PER SIDE. 5. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.127 (0.005) TOTAL IN EXCESS OF THE D DIMENSION AT MAXIMUM MATERIAL CONDITION. 9 –B– INCHES MIN MAX 0.740 0.770 0.250 0.270 0.145 0.175 0.015 0.021 0.040 0.70 0.100 BSC 0.050 BSC 0.008 0.015 0.110 0.130 0.295 0.305 0_ 10 _ 0.020 0.040 DIM A B C D F G J K M P R MILLIMETERS MIN MAX 9.80 10.00 3.80 4.00 1.35 1.75 0.35 0.49 0.40 1.25 1.27 BSC 0.19 0.25 0.10 0.25 0_ 7_ 5.80 6.20 0.25 0.50 INCHES MIN MAX 0.386 0.393 0.150 0.157 0.054 0.068 0.014 0.019 0.016 0.049 0.050 BSC 0.008 0.009 0.004 0.009 0_ 7_ 0.229 0.244 0.010 0.019 Motorola reserves the right to make changes without further notice to any products herein. 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Box 20912; Phoenix, Arizona 85036. 1–800–441–2447 JAPAN: Nippon Motorola Ltd.; Tatsumi–SPD–JLDC, Toshikatsu Otsuki, 6F Seibu–Butsuryu–Center, 3–14–2 Tatsumi Koto–Ku, Tokyo 135, Japan. 03–3521–8315 MFAX: [email protected] –TOUCHTONE (602) 244–6609 INTERNET: http://Design–NET.com HONG KONG: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298 ◊ FACT DATA 5-6 *MC74AC151/D* MC74AC151/D