MC74AC157, MC74ACT157 Quad 2-Input Multiplexer The MC74AC157/74ACT157 is a high−speed quad 2−input multiplexer. Four bits of data from two sources can be selected using the common Select and Enable inputs. The four outputs present the selected data in the true (non−inverted) form. The MC74AC157/74ACT157 can also be used as a function generator. www.onsemi.com MARKING DIAGRAMS Features • Outputs Source/Sink 24 mA • ′ACT157 Has TTL Compatible Inputs • These are Pb−Free Devices 16 SOIC−16 D SUFFIX CASE 751B 16 1 VCC E I0c I1c Zc I0d I1d Zd 16 15 14 13 12 11 10 9 xxx157G AWLYWW 1 16 xxx 157 ALYWG G TSSOP−16 DT SUFFIX CASE 948F 16 1 1 1 2 3 4 5 6 7 S I0a I1a Za I0b I1b Zb xxx = AC or ACT A = Assembly Location WL or L = Wafer Lot Y = Year WW or W = Work Week G or G = Pb−Free Package 8 GND (Note: Microdot may be in either location) Figure 1. Pinout: 16−Lead Packages Conductors (Top View) PIN NAMES TRUTH TABLE PIN Inputs FUNCTION Outputs I0a−I0d Source 0 Data Inputs E S I0 I1 Z I1a−I1d Source 0 Data Inputs H L L L L X H H L L X X X L H X L H X X L L H L H E Enable Input S Select Input Za−Zd Outputs H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 6 of this data sheet. © Semiconductor Components Industries, LLC, 2015 January, 2015 − Rev. 8 1 Publication Order Number: MC74AC157/D MC74AC157, MC74ACT157 E I0a I1a I0b I1b I0c I1c I0d I1d S Za Zb Zc Zd Figure 2. Logic Symbol FUNCTIONAL DESCRIPTION Za = E•(I1a•S+I0a•S) Zb = E•(I1b•S+I0b•S) Zc = E•(I1c•S+I0c•S) Zd = E•(I1d•S+I0d•S) A common use of the MC74AC157/74ACT157 is the moving of data from two groups of registers to four common output busses. The particular register from which the data comes is determined by the state of the Select input. A less obvious use is as a function generator. The MC74AC157/74ACT157 can generate any four of the sixteen different functions of two variables with one variable common. This is useful for implementing gating functions. The MC74AC157/74ACT157 is a quad 2−input multiplexer. It selects four bits of data from two sources under the control of a common Select input (S). The Enable input (E) is active−LOW. When E is HIGH, all of the outputs (Z) are forced LOW regardless of all other inputs. The MC74AC157/74ACT157 is the logic implementation of a 4−pole, 2−position switch where the position of the switch is determined by the logic levels supplied to the Select input. The logic equations for the outputs are shown below: I0a I1a Za I0b I1b Zb NOTE: I0c I1c Zc I0d I1d E Zd This diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays. Figure 3. Logic Diagram www.onsemi.com 2 S MC74AC157, MC74ACT157 MAXIMUM RATINGS Symbol Parameter Value Unit *0.5 to )7.0 V *0.5 v VI v VCC )0.5 V *0.5 v VO v VCC )0.5 V DC Input Diode Current $20 mA IOK DC Output Diode Current $50 mA IO DC Output Sink/Source Current $50 mA ICC DC Supply Current per Output Pin $50 mA IGND DC Ground Current per Output Pin $50 mA TSTG Storage Temperature Range *65 to )150 °C TL Lead temperature, 1 mm from Case for 10 Seconds 260 °C TJ Junction temperature under Bias )150 °C qJA Thermal Resistance (Note 2) SOIC TSSOP 69.1 103.8 °C/W PD Power Dissipation in Still Air at 65°C (Note 3) SOIC TSSOP 500 500 mW MSL Moisture Sensitivity FR Flammability Rating VESD ESD Withstand Voltage Human Body Model (Note 4) Machine Model (Note 5) Charged Device Model (Note 6) > 2000 > 200 > 1000 V ILatch−Up Latch−Up Performance Above VCC and Below GND at 85°C (Note 7) $100 mA VCC DC Supply Voltage VI DC Input Voltage VO DC Output Voltage IIK (Note 1) Level 1 Oxygen Index: 30% − 35% UL 94 V−0 @ 0.125 in Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. 1. IO absolute maximum rating must be observed. 2. The package thermal impedance is calculated in accordance with JESD51−7. 3. 500 mW at 65°C; derate to 300 mW by 10 mW/ from 65°C to 85°C. 4. Tested to EIA/JESD22−A114−A. 5. Tested to EIA/JESD22−A115−A. 6. Tested to JESD22−C101−A. 7. Tested to EIA/JESD78. RECOMMENDED OPERATING CONDITIONS Symbol VCC VIN, VOUT tr, tf Parameter Supply Voltage Min Typ Max ′AC 2.0 5.0 6.0 ′ACT 4.5 5.0 5.5 0 − 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 − − − 140 °C −40 25 85 °C DC Input Voltage, Output Voltage (Ref. to GND) Input Rise and Fall Time (Note 1) ′AC Devices except Schmitt Inputs Unit V V ns/V tr, tf Input Rise and Fall Time (Note 2) ′ACT Devices except Schmitt Inputs TJ Junction Temperature (PDIP) TA Operating Ambient Temperature Range IOH Output Current − High − − −24 mA IOL Output Current − Low − − 24 mA ns/V Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond the Recommended Operating Ranges limits may affect device reliability. 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. www.onsemi.com 3 MC74AC157, MC74ACT157 DC CHARACTERISTICS Symbol Parameter VCC (V) 74AC 74AC TA = +25°C TA = −40°C to +85°C Typ VIH VIL VOH VOL IIN IOLD IOHD ICC Unit Conditions Guaranteed Limits Minimum High Level Input Voltage 3.0 4.5 5.5 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 3.0 4.5 5.5 − − − 2.56 3.86 4.86 2.46 3.76 4.76 3.0 4.5 5.5 0.002 0.001 0.001 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 5.5 − 5.5 − 5.5 − Maximum Low Level Output Voltage Maximum Input Leakage Current †Minimum Dynamic Output Current Maximum Quiescent Supply Current IOUT = −50 mA *VIN = VIL or VIH −12 mA IOH −24 mA −24 mA V IOUT = 50 mA V V *VIN = VIL or VIH 12 mA IOL 24 mA 24 mA ±1.0 mA VI = VCC, GND − 75 mA VOLD = 1.65 V Max − −75 mA VOHD = 3.85 V Min 8.0 80 mA VIN = VCC or GND *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. AC CHARACTERISTICS (For Figures and Waveforms − See Section 3 of the ON Semiconductor FACT Data Book, DL138/D) VCC* (V) Parameter Symbol 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 S to Zn 3.3 5.0 1.5 1.5 7.0 5.5 11.5 9.0 1.5 1.5 13.0 10.0 ns 3−6 tPHL Propagation Delay S to Zn 3.3 5.0 1.5 1.5 6.5 5.0 11.0 8.5 1.5 1.0 12.0 9.5 ns 3−6 tPLH Propagation Delay E to Zn 3.3 5.0 1.5 1.5 7.0 5.5 11.5 9.0 1.5 1.5 13.0 10.0 ns 3−6 tPHL Propagation Delay En to Zn 3.3 5.0 1.5 1.5 6.5 5.5 11.0 9.0 1.5 1.0 12 9.5 ns 3−6 tPLH Propagation Delay In to Zn 3.3 5.0 1.5 1.5 5.0 4.0 8.5 6.5 1.0 1.0 9.0 7.0 ns 3−5 tPHL Propagation Delay In to Zn 3.3 5.0 1.5 1.5 5.0 4.0 8.0 6.5 1.0 1.0 9.0 7.0 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. www.onsemi.com 4 MC74AC157, MC74ACT157 DC CHARACTERISTICS Symbol Parameter VCC (V) 74ACT 74ACT TA = +25°C TA = −40°C to +85°C Unit Typ Guaranteed Limits 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 4.5 5.5 − − 3.86 4.86 3.76 4.76 4.5 5.5 0.001 0.001 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 24 mA IOL 24 mA Maximum Input Leakage Current 5.5 − ±0.1 ±1.0 mA VI = VCC, GND Additional Max. ICC/Input 5.5 0.6 − 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 5.5 − 8.0 80 mA VIN = VCC or GND VOL IIN DICCT IOLD IOHD ICC Maximum Low Level Output Voltage Maximum Quiescent Supply Current IOUT = −50 mA *VIN = VIL or VIH −24 mA IOH −24 mA V IOUT = 50 mA V *All outputs loaded; thresholds on input associated with output under test. †Maximum test duration 2.0 ms, one output loaded at a time. AC CHARACTERISTICS (For Figures and Waveforms − See Section 3 of the ON Semiconductor FACT Data Book, DL138/D) VCC* (V) Parameter Symbol 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 S to Zn 5.0 2.0 − 9.0 1.5 10.0 ns 3−6 tPHL Propagation Delay S to Zn 5.0 2.0 − 9.5 2.0 10.5 ns 3−6 tPLH Propagation Delay En to Zn 5.0 1.5 − 10 1.5 11.5 ns 3−6 tPHL Propagation Delay En to Zn 5.0 1.5 − 8.5 1.0 9.0 ns 3−6 tPLH Propagation Delay In to Zn 5.0 1.5 − 7.0 1.0 8.5 ns 3−5 tPHL Propagation Delay In to Zn 5.0 1.5 − 7.5 1.0 8.5 ns 3−5 *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 50 pF VCC = 5.0 V www.onsemi.com 5 MC74AC157, MC74ACT157 ORDERING INFORMATION Package Shipping† MC74AC157DG SOIC−16 (Pb−Free) 48 Units / Rail MC74AC157DR2G SOIC−16 (Pb−Free) 2500 Tape & Reel MC74AC157DTR2G TSSOP−16 (Pb−Free) 2500 Tape & Reel MC74ACT157DG SOIC−16 (Pb−Free) 48 Units / Rail MC74ACT157DR2G SOIC−16 (Pb−Free) 2500 Tape & Reel MC74ACT157DTR2G TSSOP−16 (Pb−Free) 2500 Tape & Reel Device Order Number †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. www.onsemi.com 6 MC74AC157, MC74ACT157 PACKAGE DIMENSIONS SOIC−16 D SUFFIX CASE 751B−05 ISSUE K 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. −A− 16 9 −B− 1 P 8 PL 0.25 (0.010) 8 B M S G R K F X 45 _ C −T− SEATING PLANE J M D DIM A B C D F G J K M P R 16 PL 0.25 (0.010) M T B S A S SOLDERING FOOTPRINT* 8X 6.40 16X 1 1.12 16 16X 0.58 1.27 PITCH 8 9 DIMENSIONS: MILLIMETERS *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. www.onsemi.com 7 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 MC74AC157, MC74ACT157 PACKAGE DIMENSIONS TSSOP−16 DT SUFFIX CASE 948F ISSUE B 16X K REF 0.10 (0.004) 0.15 (0.006) T U M T U S V S S K ÉÉÉ ÇÇÇ ÇÇÇ ÉÉÉ K1 2X L/2 16 9 J1 B −U− L SECTION N−N J PIN 1 IDENT. N 0.25 (0.010) 8 1 M 0.15 (0.006) T U S A −V− NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSION A DOES NOT INCLUDE MOLD FLASH. PROTRUSIONS OR GATE BURRS. MOLD FLASH OR GATE BURRS SHALL NOT EXCEED 0.15 (0.006) PER SIDE. 4. DIMENSION B DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSION. INTERLEAD FLASH OR PROTRUSION SHALL NOT EXCEED 0.25 (0.010) PER SIDE. 5. DIMENSION K DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.08 (0.003) TOTAL IN EXCESS OF THE K DIMENSION AT MAXIMUM MATERIAL CONDITION. 6. TERMINAL NUMBERS ARE SHOWN FOR REFERENCE ONLY. 7. DIMENSION A AND B ARE TO BE DETERMINED AT DATUM PLANE −W−. N F DETAIL E −W− C 0.10 (0.004) −T− SEATING PLANE H D DETAIL E G DIM A B C D F G H J J1 K K1 L M MILLIMETERS MIN MAX 4.90 5.10 4.30 4.50 −−− 1.20 0.05 0.15 0.50 0.75 0.65 BSC 0.18 0.28 0.09 0.20 0.09 0.16 0.19 0.30 0.19 0.25 6.40 BSC 0_ 8_ SOLDERING FOOTPRINT* 7.06 1 0.65 PITCH 16X 0.36 16X 1.26 DIMENSIONS: MILLIMETERS *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. www.onsemi.com 8 INCHES MIN MAX 0.193 0.200 0.169 0.177 −−− 0.047 0.002 0.006 0.020 0.030 0.026 BSC 0.007 0.011 0.004 0.008 0.004 0.006 0.007 0.012 0.007 0.010 0.252 BSC 0_ 8_ MC74AC157, MC74ACT157 ON Semiconductor and the are registered trademarks of Semiconductor Components Industries, LLC (SCILLC) or its subsidiaries in the United States and/or other countries. SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. 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