74FST3257 Quad 2:1 Multiplexer/ Demultiplexer Bus Switch The ON Semiconductor 74FST3257 is a quad 2:1, high performance multiplexer/demultiplexer bus switch. The device is CMOS TTL compatible when operating between 4 and 5.5 Volts. The device exhibits extremely low RON and adds nearly zero propagation delay. The device adds no noise or ground bounce to the system. http://onsemi.com MARKING DIAGRAMS Features • • • • • • • • RON 4 Typical Less Than 0.25 ns−Max Delay Through Switch Nearly Zero Standby Current No Circuit Bounce Control Inputs are TTL/CMOS Compatible Pin−For−Pin Compatible With QS3257, FST3257, CBT3257 All Popular Packages: QSOP−16, TSSOP−16, SOIC−16 All Devices in Package TSSOP are Inherently Pb−Free* 16 16 FST3257 AWLYWW 1 SOIC−16 D SUFFIX CASE 751B 1 16 16 FST 3257 ALYW 1 S 1B1 1B2 1A 2B1 2B2 2A GND 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 TSSOP−16 DT SUFFIX CASE 948F VCC OE 4B1 4B2 4A 3B1 3B2 3A OE Function X L H H L L Disconnect A = B1 A = B2 16 16 S3257 ALYW 1 QSOP−16 QS SUFFIX CASE 492 Figure 1. 16−Lead Pinout S 1 A L, WL Y W, WW 1 = = = = Assembly Location Wafer Lot Year Work Week PIN NAMES Figure 2. Truth Table Pin OE1, OE2 S0, S1 Description Bus Switch Enables Select Inputs A Bus A B1, B2, B3, B4 Bus B ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 2 of this data sheet. *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. Semiconductor Components Industries, LLC, 2005 January, 2005 − Rev. 2 1 Publication Order Number: 74FST3257/D 74FST3257 1A 1B 1B2 2A 2B1 2B2 3A 3B1 3B2 4A 4B1 4B2 FLOW CONTROL OE S Figure 3. Logic Diagram ORDERING INFORMATION Device Order N Number mber 74FST32517D 74FST3257DR2 Package Shipping† SOIC−16 48 Units / Rail SOIC−16 2500 Units / Tape & Reel 74FST3257DT TSSOP−16* (Pb−Free) 96 Units / Rail 74FST3257DTR2 TSSOP−16* (Pb−Free) 2500 Units / Tape & Reel 74FST3257QS QSOP−16 96 Units / Rail 74FST3257QSR QSOP−16 2500 Units / Tape & Reel †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. *This package is inherently Pb−Free. http://onsemi.com 2 74FST3257 MAXIMUM RATINGS Symbol Value Unit DC Supply Voltage 0.5 to 7.0 V VI DC Input Voltage 0.5 to 7.0 V VO DC Output Voltage 0.5 to 7.0 V VI GND 50 mA VO GND 50 mA 128 mA VCC Parameter IIK DC Input Diode Current IOK DC Output Diode Current IO DC Output Sink Current ICC DC Supply Current per Supply Pin 100 mA IGND DC Ground Current per Ground Pin 100 mA TSTG Storage Temperature Range 65 to 150 C TL Lead Temperature, 1 mm from Case for 10 Seconds TJ Junction Temperature Under Bias JA Thermal Resistance MSL Moisture Sensitivity FR Flammability Rating VESD ILatchup SOIC TSSOP QSOP C C 125 170 200 C/W Level 1 Oxygen Index: 28 to 34 UL 94 V−0 @ 0.125 in Human Body Model (Note 1) Machine Model (Note 2) Charged Device Model (Note 3) 2000 200 N/A V Above VCC and Below GND at 85C (Note 4) 500 mA ESD Withstand Voltage Latchup Performance 260 150 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 VCC Parameter Supply Voltage VI Input Voltage VO Output Voltage TA Operating Free−Air Temperature t/V Input Transition Rise or Fall Rate Switch I/O Operating, Data Retention Only Min Max Unit 4.0 5.5 V (Note 5) 0 5.5 V (HIGH or LOW State) 0 5.5 V 40 85 C DC 5 ns/V 0 Switch Control Input VCC = 5.0 V 0.5 V 5. Unused control inputs may not be left open. All control inputs must be tied to a high or low logic input voltage level. http://onsemi.com 3 74FST3257 DC ELECTRICAL CHARACTERISTICS Symbol Parameter VIK Clamp Diode Resistance VIH High−Level Input Voltage VIL Low−Level Input Voltage Conditions IIN = 18mA VCC TA = 40C to 85C (V) Min Typ* 4.5 4.0 to 5.5 Max Unit 1.2 V 2.0 V 4.0 to 5.5 0.8 V Input Leakage Current 0 VIN 5.5 V 5.5 1.0 A IOZ OFF−STATE Leakage Current 0 A, B VCC 5.5 1.0 A RON Switch On Resistance (Note 6) VIN = 0 V, IIN = 64 mA 4.5 4 7 VIN = 0 V, IIN = 30 mA 4.5 4 7 VIN = 2.4 V, IIN = 15 mA 4.5 8 15 11 20 II VIN = 2.4 V, IIN = 15 mA 4.0 ICC Quiescent Supply Current VIN = VCC or GND, IOUT = 0 5.5 3 A ICC Increase In ICC per Input One input at 3.4 V, Other inputs at VCC or GND 5.5 2.5 mA *Typical values are at VCC = 5.0 V and TA = 25C. 6. Measured by the voltage drop between A and B pins at the indicated current through the switch. On resistance is determined by the lower of the voltages on the two (A or B) pins. AC ELECTRICAL CHARACTERISTICS TA = 40C to 85C CL = 50 pF, RU = RD = 500 VCC = 4.5−5.5 V Symbol tPHL, tPLH Parameter Prop Delay Bus to Bus (Note 7) Conditions Min Prop Delay, Select to Bus A tPZH, tPZL tPHZ, tPLZ Max Unit 0.25 0.25 ns 1.0 4.7 5.2 VI = OPEN Max VCC = 4.0 V Min Output Enable Time, Select to Bus B VI = 7 V for tPZL 1.0 5.2 5.7 Output Enable Time, IOE to Bus A, B VI = OPEN for tPZH 1.0 5.1 5.6 Output Disable Time, Select to Bus B VI = 7 V for tPLZ 1.0 5.2 5.5 Output Disable Time, IOE to Bus A, B VI = OPEN for tPHZ 1.0 5.5 5.5 ns ns 7. This parameter is guaranteed by design but is not tested. The bus switch contributes no propagation delay other than the RC delay of the typical On resistance of the switch and the 50 pF load capacitance, when driven by an ideal voltage source (zero output impedance). CAPACITANCE (Note 8) Symbol Parameter Conditions Typ Max Unit CIN Control Pin Input Capacitance VCC = 5.0 V 3 pF CI/O A Port Input/Output Capacitance VCC, OE = 5.0 V 7 pF CI/O B Port Input/Output Capacitance VCC, OE = 5.0 V 5 pF 8. TA = 25C, f = 1 MHz, Capacitance is characterized but not tested. http://onsemi.com 4 74FST3257 AC Loading and Waveforms VI 500 FROM OUTPUT UNDER TEST CL * 500 NOTES: 1. Input driven by 50 source terminated in 50 . 2. CL includes load and stray capacitance. *CL = 50 pF Figure 4. AC Test Circuit tf = 2.5 nS 90 % SWITCH INPUT tf = 2.5 nS 3.0 V 90 % 1.5 V 1.5 V 10 % 10 % tPLH GND tPLH VOH 1.5 V 1.5 V OUTPUT VOL Figure 5. Propagation Delays tf = 2.5 nS tf = 2.5 nS ENABLE INPUT 90 % 90 % 1.5 V 1.5 V 10 % 10 % tPZL OUTPUT 3.0 V GND tPZL 1.5 V tPZH VOL + 0.3 V VOL tPHZL VOH 1.5 V OUTPUT Figure 6. Enable/Disable Delays http://onsemi.com 5 VOH − 0.3 V 74FST3257 PACKAGE DIMENSIONS SOIC−16 D SUFFIX CASE 751B−05 ISSUE J 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 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 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 S 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 0.15 (0.006) T U S 0.25 (0.010) 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−. M N 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 74FST3257 PACKAGE DIMENSIONS QSOP−16 QS SUFFIX CASE 492−01 ISSUE O −A− NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. THE BOTTOM PACKAGE SHALL BE BIGGER THAN THE TOP PACKAGE BY 4 MILS (NOTE: LEAD SIDE ONLY). BOTTOM PACKAGE DIMENSION SHALL FOLLOW THE DIMENSION STATED IN THIS DRAWING. 4. PLASTIC DIMENSIONS DOES NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 6 MILS PER SIDE. 5. BOTTOM EJECTOR PIN WILL INCLUDE THE COUNTRY OF ORIGIN (COO) AND MOLD CAVITY I.D. Q R H x 45 U RAD. 0.013 X 0.005 DP. MAX −B− MOLD PIN MARK RAD. 0.005−0.010 TYP G L 0.25 (0.010) M P T DETAIL E V K C N 8 PL −T− D 16 PL 0.25 (0.010) SEATING PLANE M T B S A S J M F DETAIL E http://onsemi.com 7 INCHES DIM MIN MAX A 0.189 0.196 B 0.150 0.157 C 0.061 0.068 D 0.008 0.012 F 0.016 0.035 G 0.025 BSC H 0.008 0.018 J 0.0098 0.0075 K 0.004 0.010 L 0.230 0.244 M 0 8 N 0 7 P 0.007 0.011 Q 0.020 DIA R 0.025 0.035 U 0.025 0.035 V 8 0 MILLIMETERS MIN MAX 4.80 4.98 3.81 3.99 1.55 1.73 0.20 0.31 0.41 0.89 0.64 BSC 0.20 0.46 0.249 0.191 0.10 0.25 5.84 6.20 0 8 0 7 0.18 0.28 0.51 DIA 0.64 0.89 0.64 0.89 0 8 74FST3257 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. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. PUBLICATION ORDERING INFORMATION LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor P.O. Box 61312, Phoenix, Arizona 85082−1312 USA Phone: 480−829−7710 or 800−344−3860 Toll Free USA/Canada Fax: 480−829−7709 or 800−344−3867 Toll Free USA/Canada Email: [email protected] N. American Technical Support: 800−282−9855 Toll Free USA/Canada ON Semiconductor Website: http://onsemi.com Order Literature: http://www.onsemi.com/litorder Japan: ON Semiconductor, Japan Customer Focus Center 2−9−1 Kamimeguro, Meguro−ku, Tokyo, Japan 153−0051 Phone: 81−3−5773−3850 http://onsemi.com 8 For additional information, please contact your local Sales Representative. 74FST3257/D