MC74VHC257 Quad 2−Channel Multiplexer with 3−State Outputs The MC74VHC257 is an advanced high speed CMOS quad 2−channel multiplexer fabricated with silicon gate CMOS technology. It achieves high speed operation similar to equivalent Bipolar Schottky TTL while maintaining CMOS low power dissipation. It consists of four 2−input digital multiplexers with common select (S) and enable (OE) inputs. When (OE) is held High, selection of data is inhibited and all the outputs go Low. The select decoding determines whether the A or B inputs get routed to the corresponding Y outputs. The inputs tolerate voltages up to 7 V, allowing the interface of 5 V systems to 3 V systems. • • • • • • • • • • • High Speed: tPD = 4.1 ns (Typ) at VCC = 5.0 V Low Power Dissipation: ICC = 4.0 A (Max) at TA = 25°C High Noise Immunity: VNIH = VNIL = 28% VCC Power Down Protection Provided on Inputs Balanced Propagation Delays Designed for 2.0 V to 5.5 V Operating Range Low Noise: VOLP = 0.8 V (Max) Pin and Function Compatible with Other Standard Logic Families Latchup Performance Exceeds 300 mA ESD Performance: HBM > 2000 V; Machine Model > 200 V Chip Complexity: FETs = 100; Equivalent Gates = 25 S 1 16 VCC A0 2 15 OE B0 3 14 A3 Y0 4 13 B3 A1 5 12 Y3 B1 6 11 A2 Y1 7 10 B2 GND 8 9 Y2 http://onsemi.com MARKING DIAGRAMS 16 9 VHC257 AWLYWW SO−16 D SUFFIX CASE 751B 1 8 16 9 VHC257 ALYW TSSOP−16 DT SUFFIX CASE 948F 1 8 9 16 VHC257 ALYW EIAJ SO−16 M SUFFIX CASE 966 A L, WL Y W, WW 8 1 = = = = Assembly Location Wafer Lot Year Work Week ORDERING INFORMATION Package Shipping† MC74VHC257D SO−16 48 Units/Rail MC74VHC257DR2 SO−16 2500 Tape & Reel MC74VHC257DT TSSOP−16 96 Units/Rail MC74VHC257DTR2 TSSOP−16 2500 Tape & Reel MC74VHC257M EIAJSO−16 50 Units/Rail MC74VHC257MEL EIAJSO−16 2000 Tape & Reel Device Figure 1. Pin Assignment †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specification Brochure, BRD8011/D. Semiconductor Components Industries, LLC, 2004 September, 2004 − Rev. 3 1 Publication Order Number: MC74VHC257/D MC74VHC257 OE I0a I1a I0b I1b I0c Zb Za I1c I0d Zc I1d S Zd Figure 2. Expanded Logic Diagram OE S A0 B0 A1 B1 A2 B2 A3 B3 15 1 2 3 5 6 EN G1 1 1 MUX 4 7 11 10 14 13 9 12 Y0 Y1 Y2 Y3 Figure 3. IEC Logic Symbol This device contains protection circuitry to guard against damage due to high static voltages or electric fields. However, precautions must be taken to avoid applications of any voltage higher than maximum rated voltages to this high−impedance circuit. For proper operation, Vin and Vout should be constrained to the range GND (Vin or Vout) VCC. Unused inputs must always be tied to an appropriate logic voltage level (e.g., either GND or V CC ). Unused outputs must be left open. FUNCTION TABLE Inputs OE S Outputs Y0 − Y3 H X Z L L A0 −A3 L H B0 −B3 A0 − A3, B0 − B3 = the levels of the respective Data−Word Inputs. http://onsemi.com 2 MC74VHC257 MAXIMUM RATINGS Value Unit VCC Symbol Positive DC Supply Voltage Parameter −0.5 to +7.0 V VIN Digital Input Voltage −0.5 to +7.0 V VOUT DC Output Voltage −0.5 to VCC +0.5 V IIK Input Diode Current −20 mA IOK Output Diode Current 20 mA IOUT DC Output Current, per Pin 25 mA ICC DC Supply Current, VCC and GND Pins 75 mA PD Power Dissipation in Still Air 200 180 mW TSTG Storage Temperature Range −65 to +150 °C VESD ESD Withstand Voltage Human Body Model (Note 1) Machine Model (Note 2) Charged Device Model (Note 3) >2000 >200 >2000 V ILATCHUP Latchup Performance Above VCC and Below GND at 125°C (Note 4) 300 mA JA Thermal Resistance, Junction−to−Ambient 143 164 °C/W SOIC Package TSSOP SOIC Package TSSOP Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied, damage may occur and reliability may be affected. 1 Tested to EIA/JESD22−A114−A 2 Tested to EIA/JESD22−A115−A 3 Tested to JESD22−C101−A 4 Tested to EIA/JESD78 RECOMMENDED OPERATING CONDITIONS Symbol Characteristics Min Max Unit 2.0 5.5 V DC Input Voltage 0 5.5 V VOUT DC Output Voltage 0 VCC V TA Operating Temperature Range, all Package Types −55 125 °C tr, tf Input Rise or Fall Time 0 100 20 ns/V VCC DC Supply Voltage VIN VCC = 3.3 V + 0.3 V VCC = 5.0 V + 0.5 V 90 419,300 47.9 100 178,700 20.4 110 79,600 9.4 120 37,000 4.2 130 17,800 2.0 140 8,900 1.0 TJ = 80 ° C 117.8 TJ = 90 ° C 1,032,200 TJ = 100 ° C 80 FAILURE RATE OF PLASTIC = CERAMIC UNTIL INTERMETALLICS OCCUR TJ = 110° C Time, Years TJ = 120° C Time, Hours TJ = 130 ° C Junction Temperature °C NORMALIZED FAILURE RATE DEVICE JUNCTION TEMPERATURE VERSUS TIME TO 0.1% BOND FAILURES 1 1 10 100 1000 TIME, YEARS Figure 4. Failure Rate vs. Time Junction Temperature http://onsemi.com 3 MC74VHC257 DC CHARACTERISTICS (Voltages Referenced to GND) VCC Symbol VIH VIL Parameter Condition Minimum High−Level Input Voltage Maximum Low−Level Input Voltage VOH Maximum High−Level Output Voltage VIN = VIH or VIL IOH = −50 A VIN = VIH or VIL IOH = −4 mA IOH = −8 mA VOL Maximum Low−Level Output Voltage VIN = VIH or VIL IOL = 50 A VIN = VIH or VIL IOH = 4 mA IOH = 8 mA (V) TA ≤ 85°C TA = 25°C Min Typ Max Min −55°C ≤ TA ≤ 125°C Max Min 2.0 1.5 1.5 1.5 1.5 3.0 to 5.5 VCCX 0.7 VCCX 0.7 VCCX 0.7 VCCX 0.7 Max V 2.0 0.5 0.5 0.5 3.0 to 5.5 VCCX 0.3 VCCX 0.3 VCCX 0.3 2.0 3.0 4.5 1.9 2.9 4.4 3.0 4.5 2.58 3.94 2.0 3.0 4.5 2.0 3.0 4.5 0.0 0.0 0.0 1.9 2.9 4.4 1.9 2.9 4.4 2.48 3.8 2.34 3.66 Unit V V 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 3.0 4.5 0.36 0.36 0.44 0.44 0.52 0.52 V IIN Input Leakage Current VIN = 5.5 V or GND 0 to 5.5 ±0.1 ±1.0 ±1.0 A IOZ Maximum 3−State Leakage Current VIN = VIH or VIL 5.5 ±0.25 ±2.5 ±2.5 A Maximum Quiescent Supply Current (per package) VIN = VCC or GND 5.5 4.0 40.0 40.0 A ICC VOUT = VCC or GND ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎ ÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎÎ ÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎ ÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎ ÎÎÎ ÎÎÎ ÎÎ ÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎÎ ÎÎ ÎÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎÎ ÎÎÎÎ ÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎ ÎÎÎ ÎÎÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎÎÎÎ ÎÎ ÎÎ ÎÎÎÎ ÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎÎ ÎÎÎÎ ÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎ ÎÎÎ ÎÎÎ ÎÎ ÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎÎ ÎÎ ÎÎ ÎÎ ÎÎÎÎ ÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎÎ ÎÎÎÎ ÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎ ÎÎÎ ÎÎÎ ÎÎ ÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎÎ ÎÎ ÎÎÎÎ ÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎ ÎÎÎ ÎÎÎ ÎÎ ÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎÎ ÎÎ ÎÎ ÎÎ ÎÎÎÎ ÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎÎ ÎÎÎÎ ÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎ ÎÎÎ ÎÎÎ ÎÎ ÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎÎ ÎÎ ÎÎÎÎ ÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎ ÎÎÎ ÎÎÎ ÎÎ ÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎÎ ÎÎ ÎÎ ÎÎ ÎÎÎÎ ÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎÎ ÎÎÎÎ ÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎ ÎÎÎ ÎÎÎ ÎÎ ÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎÎ ÎÎ ÎÎÎÎ ÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎ ÎÎÎ ÎÎÎ ÎÎ ÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎÎ ÎÎ ÎÎ ÎÎ ÎÎÎÎ ÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎÎ ÎÎÎÎ ÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎ ÎÎÎ ÎÎÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎÎÎÎ ÎÎÎÎ ÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎÎ ÎÎ ÎÎ AC ELECTRICAL CHARACTERISTICS (Input tr = tf = 3.0ns) TA = ≤ 85°C TA = 25°C Symbol tPLH, tPHL tPLH, tPHL tPZL, tPZH tPLZ, tPHZ CIN Typ Max Min Max Min Max Unit Maximum Propagation Delayy t Y A or B to VCC = 3.3 ± 0.3 V CL = 15 pF CL = 50 pF 5.8 8.3 9.3 12.8 1.0 1.0 11.0 14.5 1.0 1.0 11.0 14.5 ns VCC = 5.0 ± 0.5 V CL = 15 pF CL = 50 pF 3.6 5.1 5.9 7.9 1.0 1.0 7.0 9.0 1.0 1.0 7.0 9.0 Maximum Propagation Delayy t Y S to VCC = 3.3 ± 0.3 V CL = 15 pF CL = 50 pF 7.0 9.5 11.0 14.5 1.0 1.0 13.0 16.5 1.0 1.0 13.0 16.5 VCC = 5.0 ± 0.5 V CL = 15 pF CL = 50 pF 4.0 5.5 6.8 8.8 1.0 1.0 8.0 10.0 1.0 1.0 8.0 10.0 Maximum Output Enable Time t Y OE to VCC = 3.3 ± 0.3 V RL = 1 k CL = 15 pF CL = 50 pF 6.7 9.2 10.5 14.0 1.0 1.0 12.5 16.0 1.0 1.0 12.5 16.0 VCC = 5.0 ± 0.5 V RL = 1 k CL = 15 pF CL = 50 pF 3.6 5.1 6.8 8.8 1.0 1.0 8.0 10.0 1.0 1.0 8.0 10.0 Maximum Output Disable Time t Y OE to VCC = 3.3 ± 0.3 V RL = 1 k CL = 50 pF 12.0 15.0 1.0 16.0 1.0 17.5 VCC = 5.0 ± 0.5 V RL = 1 k CL = 50 pF 5.7 13.0 1.0 14.0 1.0 15.0 4 10 Parameter Min −55°C ≤ TA ≤ 125°C Test Conditions Maximum Input Capacitance 10 10 ns ns ns pF Typical @ 25°C, VCC = 5.0V CPD 20 Power Dissipation Capacitance (Note 5) pF 5. CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating current consumption without load. Average operating current can be obtained by the equation: ICC(OPR) = CPD VCC fin + ICC. CPD is used to determine the no−load dynamic power consumption; PD = CPD VCC2 fin + ICC VCC. http://onsemi.com 4 MC74VHC257 NOISE CHARACTERISTICS (Input tr = tf = 3.0 ns, CL = 50 pF, VCC = 5.0 V) TA = 25°C Symbol Characteristic Typ Max Unit VOLP Quiet Output Maximum Dynamic VOL 0.3 0.8 V VOLV Quiet Output Minimum Dynamic VOL − 0.3 − 0.8 V VIHD Minimum High Level Dynamic Input Voltage 3.5 V VILD Maximum Low Level Dynamic Input Voltage 1.5 V OE VCC 50% GND VCC A, B or S 50% tPLH Y tPZL GND tPHL tPLZ 50% VCC Y tPZH 50% VCC VOH − 0.3V HIGH IMPEDANCE Figure 6. Switching Waveform TEST POINT TEST POINT OUTPUT DEVICE UNDER TEST VOL + 0.3V tPHZ 50% VCC Y Figure 5. Switching Waveform HIGH IMPEDANCE DEVICE UNDER TEST CL* *Includes all probe and jig capacitance OUTPUT 1 kΩ CL * CONNECT TO VCC WHEN TESTING tPLZ AND tPZL. CONNECT TO GND WHEN TESTING tPHZ AND tPZH. *Includes all probe and jig capacitance Figure 7. Test Circuit Figure 8. Test Circuit INPUT Figure 9. Input Equivalent Circuit http://onsemi.com 5 MC74VHC257 PACKAGE DIMENSIONS SOIC−16 D SUFFIX CASE 751B−05 ISSUE J −A− 16 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− 1 P 8 PL 0.25 (0.010) 8 M B S G R K DIM A B C D F G J K M P R 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 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 TSSOP−16 DT SUFFIX CASE 948F−01 ISSUE O 16X K REF 0.10 (0.004) 0.15 (0.006) T U M T U V S S S K ÉÉ ÇÇÇ ÇÇÇ ÉÉ K1 2X L/2 16 9 J1 B −U− L SECTION N−N J PIN 1 IDENT. 8 1 N 0.25 (0.010) 0.15 (0.006) T U S A −V− M N 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−. F DETAIL E −W− C 0.10 (0.004) −T− SEATING PLANE DETAIL E H D G http://onsemi.com 6 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 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 MC74VHC257 SOIC EIAJ−16 M SUFFIX CASE 966−01 ISSUE O 16 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSIONS D AND E DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS AND ARE MEASURED AT THE PARTING LINE. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.15 (0.006) PER SIDE. 4. TERMINAL NUMBERS ARE SHOWN FOR REFERENCE ONLY. 5. THE LEAD WIDTH DIMENSION (b) DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.08 (0.003) TOTAL IN EXCESS OF THE LEAD WIDTH DIMENSION AT MAXIMUM MATERIAL CONDITION. DAMBAR CANNOT BE LOCATED ON THE LOWER RADIUS OR THE FOOT. MINIMUM SPACE BETWEEN PROTRUSIONS AND ADJACENT LEAD TO BE 0.46 ( 0.018). LE 9 Q1 M E HE 1 8 L DETAIL P Z D e VIEW P A A1 b 0.13 (0.005) c M 0.10 (0.004) http://onsemi.com 7 DIM A A1 b c D E e HE L LE M Q1 Z MILLIMETERS MIN MAX −−− 2.05 0.05 0.20 0.35 0.50 0.18 0.27 9.90 10.50 5.10 5.45 1.27 BSC 7.40 8.20 0.50 0.85 1.10 1.50 10 0 0.70 0.90 −−− 0.78 INCHES MIN MAX −−− 0.081 0.002 0.008 0.014 0.020 0.007 0.011 0.390 0.413 0.201 0.215 0.050 BSC 0.291 0.323 0.020 0.033 0.043 0.059 10 0 0.028 0.035 −−− 0.031 MC74VHC257 ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. 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