MC74LCX257 Low-Voltage CMOS Quad 2-Input Multiplexer With 5.0 V−Tolerant Inputs and Outputs (3−State, Non−Inverting) http://onsemi.com The MC74LCX257 is a high performance, quad 2−input multiplexer with 3−state outputs operating from a 2.3 to 3.6 V supply. High impedance TTL compatible inputs significantly reduce current loading to input drivers while TTL compatible outputs offer improved switching noise performance. A VI specification of 5.5 V allows MC74LCX257 inputs to be safely driven from 5.0 V devices. Four bits of data from two sources can be selected using the Select input. The four outputs present the selected data in the true (non−inverted) form. The outputs may be switched to a high impedance state by placing a logic HIGH on the Output Enable (OE) input. Current drive capability is 24 mA at the outputs. Features • • • • • • • • • • • Designed for 2.3 to 3.6 V VCC Operation 5.0 V Tolerant − Interface Capability with 5.0 V TTL Logic Supports Live Insertion and Withdrawal IOFF Specification Guarantees High Impedance When VCC = 0 V LVTTL Compatible LVCMOS Compatible 24 mA Balanced Output Sink and Source Capability Near Zero Static Supply Current in All Three Logic States (10 mA) Substantially Reduces System Power Requirements Latchup Performance Exceeds 500 mA ESD Performance: ♦ Human Body Model >2000 V ♦ Machine Model >200 V These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS Compliant © Semiconductor Components Industries, LLC, 2012 October, 2012 − Rev. 7 1 MARKING DIAGRAMS 16 SOIC−16 D SUFFIX CASE 751B 16 1 LCX257G AWLYWW 1 16 16 1 LCX 257 ALYWG G TSSOP−16 DT SUFFIX CASE 948F 1 A WL, L Y WW, W G or G = Assembly Location = Wafer Lot = Year = Work Week = Pb−Free Package (Note: Microdot may be in either location) ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 3 of this data sheet. Publication Order Number: MC74LCX257/D MC74LCX257 VCC OE I0c I1c Zc I0d I1d Zd 16 15 14 13 12 11 10 9 I0a I1a I0b I1b 1 S 2 I0a 3 I1a 4 5 Za I0b 6 I1b 7 Zb I0c 8 GND I1c Figure 1. Pinout: 16−Lead Plastic Package (Top View) I0d I1d OE 2 4 3 5 7 6 14 12 13 11 9 10 15 1 S Figure 2. Logic Diagram PIN NAMES Pins Function l0n Source 0 Data Inputs l1n Source 1 Data Inputs OE Output Enable Input S Select Input Zn Outputs TRUTH TABLE Inputs H L X Z Outputs OE S l0n l1n Zn H X X X Z L H X L L L H X H H L L L X L L L H X H = = = = High Voltage Level Low Voltage Level High or Low Voltage Level and Transitions are Acceptable High Impedance State For ICC reasons, DO NOT FLOAT Inputs http://onsemi.com 2 Za Zb Zc Zd MC74LCX257 MAXIMUM RATINGS Symbol VCC Parameter Value DC Supply Voltage Condition Units −0.5 to +7.0 V V VI DC Input Voltage −0.5 ≤ VI ≤ +7.0 VO DC Output Voltage −0.5 ≤ VI ≤ +7.0 Output in 3−State V −0.5 ≤ VO ≤ VCC + 0.5 Output in HIGH or LOW State (Note 1) V IIK DC Input Diode Current −50 VI < GND mA IOK DC Output Diode Current −50 VO < GND mA +50 VO > VCC mA IO DC Output Source/Sink Current ±50 mA ICC DC Supply Current Per Supply Pin ±100 mA IGND DC Ground Current Per Ground Pin ±100 mA TSTG Storage Temperature Range MSL Moisture Sensitivity −65 to +150 °C Level 1 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. IO absolute maximum rating must be observed. RECOMMENDED OPERATING CONDITIONS Symbol VCC Parameter Supply Voltage Operating Data Retention Only Min Type Max 2.0 1.5 2.5, 3.3 2.5, 3.3 3.6 3.6 VI Input Voltage 0 5.5 VO Output Voltage (HIGH or LOW State) (3−State) 0 0 VCC 5.5 IOH HIGH Level Output Current VCC = 3.0 V − 3.6 V VCC = 2.7 V − 3.0 V VCC = 2.3 V − 2.7 V −24 −12 −8 IOL LOW Level Output Current VCC = 3.0 V − 3.6 V VCC = 2.7 V − 3.0 V VCC = 2.3 V − 2.7 V +24 +12 +8 TA Operating Free−Air Temperature Dt/DV Input Transition Rise or Fall Rate, VIN from 0.8 V to 2.0 V, VCC = 3.0 V Units V V V mA mA −40 +85 °C 0 10 ns/V ORDERING INFORMATION Package Shipping† MC74LCX257DR2G SOIC−16 (Pb−Free) 2500 Tape & Reel MC74LCX257DTG TSSOP−16 (Pb−Free) 96 Units / Rail MC74LCX257DTR2G TSSOP−16 (Pb−Free) 2500 Tape & Reel Device †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. http://onsemi.com 3 MC74LCX257 DC ELECTRICAL CHARACTERISTICS TA = −40°C to +85°C Symbol VIH VIL VOH VOL Characteristic HIGH Level Input Voltage (Note 2) LOW Level Input Voltage (Note 2) HIGH Level Output Voltage LOW Level Output Voltage IOZ 3−State Output Current IOFF Power Off Leakage Current Condition Min 2.3 V ≤ VCC ≤ 2.7 V 1.7 2.7 V ≤ VCC ≤ 3.6 V 2.0 Max V 2.3 V ≤ VCC ≤ 2.7 V 0.7 2.7 V ≤ VCC ≤ 3.6 V 0.8 2.3 V ≤ VCC ≤ 3.6 V; IOH = −100 mA VCC − 0.2 VCC = 2.3 V; IOH = −8 mA 1.8 VCC = 2.7 V; IOH = −12 mA 2.2 VCC = 3.0 V; IOH = −18 mA 2.4 VCC = 3.0 V; IOH = −24 mA 2.2 Units V V 2.3 V ≤ VCC ≤ 3.6 V; IOL = 100 mA 0.2 VCC = 2.3 V; IOL = 8 mA 0.6 V VCC = 2.7 V; IOL = 12 mA 0.4 VCC = 3.0 V; IOL = 16 mA 0.4 VCC = 3.0 V; IOL = 24 mA 0.55 VCC = 3.6 V, VIN = VIH or VIL, VOUT = 0 to 5.5 V ±5 mA VCC = 0, VIN = 5.5 V or VOUT = 5.5 V 10 mA IIN Input Leakage Current VCC = 3.6 V, VIN = 5.5 V or GND ±5 mA ICC Quiescent Supply Current VCC = 3.6 V, VIN = 5.5 V or GND 10 mA 2.3 ≤ VCC ≤ 3.6 V; VIH = VCC − 0.6 V 500 mA DICC Increase in ICC per Input 2. These values of VI are used to test DC electrical characteristics only. AC CHARACTERISTICS tR = tF = 2.5 ns; RL = 500 W Limits TA = −40°C to +85°C Symbol Parameter VCC = 3.3 V ± 0.3 V VCC = 2.7 V VCC = 2.5 V ± 0.2 V CL = 50 pF CL = 50 pF CL = 30 pF Waveform Min Max Min Max Min Max Units tPLH tPHL Propagation Delay In to Zn 1 1.5 1.5 6.0 6.0 1.5 1.5 6.5 6.5 1.5 1.5 7.2 7.2 ns tPLH tPHL Propagation Delay S to Zn 1, 2 1.5 1.5 7.0 7.0 1.5 1.5 8.5 8.5 1.5 1.5 9.1 9.1 ns tPZH tPZL Output Enable Time to High and Low Level 3 1.5 1.5 7.0 7.0 1.5 1.5 8.5 8.5 1.5 1.5 9.1 9.1 ns tPHZ tPLZ Output Disable Time from High and Low Level 3 1.5 1.5 5.5 5.5 1.5 1.5 6.0 6.0 1.5 1.5 6.6 6.6 ns tOSHL tOSLH Output−to−Output Skew (Note 3) 1.0 1.0 ns 3. Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device. The specification applies to any outputs switching in the same direction, either HIGH−to−LOW (tOSHL) or LOW−to−HIGH (tOSLH); parameter guaranteed by design. http://onsemi.com 4 MC74LCX257 DYNAMIC SWITCHING CHARACTERISTICS TA = +25°C Symbol Characteristic Condition Min Typ Max Units VOLP Dynamic LOW Peak Voltage (Note 4) VCC = 3.3 V, CL = 50 pF, VIH = 3.3 V, VIL = 0 V VCC = 2.5 V, CL = 30 pF, VIH = 2.5 V, VIL = 0 V 0.8 0.6 V VOLV Dynamic LOW Valley Voltage (Note 4) VCC = 3.3 V, CL = 50 pF, VIH = 3.3 V, VIL = 0 V VCC = 2.5 V, CL = 30 pF, VIH = 2.5 V, VIL = 0 V −0.8 −0.6 V 4. Number of outputs defined as “n”. Measured with “n−1” outputs switching from HIGH−to−LOW or LOW−to−HIGH. The remaining output is measured in the LOW state. CAPACITIVE CHARACTERISTICS Symbol Parameter CIN Input Capacitance CI/O Input/Output Capacitance CPD Power Dissipation Capacitance Condition Typical Units VCC = 3.3 V, VI = 0 V or VCC 7 pF VCC = 3.3 V, VI = 0 V or VCC 8 pF 10 MHz, VCC = 3.3 V, VI = 0 V or VCC 25 pF VCC VCC In, S Vmi Vmi Vmi S Vmi 0V tPLH 0V tPHL tPLH tPHL VOH Zn Vmo VOH Vmo Vmo Zn VOL VOL WAVEFORM 1 − NON−INVERTING PROPAGATION DELAYS tR = tF = 2.5 ns, 10% to 90%; f = 1.0 MHz; tW = 500 ns WAVEFORM 2 − INVERTING PROPAGATION DELAYS tR = tF = 2.5 ns, 10% to 90%; f = 1.0 MHz; tW = 500 ns VCC Vmi OE Vmi 0V tPZH tPHZ VCC VOH − 0.3 V Vmo Zn ≈0V tPZL tPLZ ≈ 3.0V Vmo Zn Vmo VOL + 0.3 V GND WAVEFORM 3 − OUTPUT ENABLE AND DISABLE TIMES tR = tF = 2.5 ns, 10% to 90%; f = 1.0 MHz; tW = 500 ns Vcc Symbol 3.3 V ± 0.3 V 2.7 V 2.5 V ± 0.2 V Vmi 1.5 V 1.5 V Vcc/2 Vmo 1.5 V 1.5 V Vcc/2 VHZ VOL + 0.3 V VOL + 0.3 V VOL + 0.15 V VLZ VOH − 0.3 V VOH − 0.3 V VOH − 0.15 V Figure 3. AC Waveforms http://onsemi.com 5 MC74LCX257 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 1 8 −B− P 8 PL 0.25 (0.010) B M 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 SOLDERING FOOTPRINT 8X 6.40 16X 1 1.12 16 16X 0.58 1.27 PITCH 8 9 DIMENSIONS: MILLIMETERS http://onsemi.com 6 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 MC74LCX257 PACKAGE DIMENSIONS TSSOP−16 DT SUFFIX CASE 948F−01 ISSUE B 16X K REF 0.10 (0.004) 0.15 (0.006) T U M T U S V S K S ÉÉÉ ÇÇÇ ÇÇÇ ÉÉÉ K1 2X L/2 16 9 J1 B −U− L SECTION N−N J PIN 1 IDENT. N 8 1 0.25 (0.010) M 0.15 (0.006) T U S A −V− N F DETAIL E C 0.10 (0.004) −T− SEATING PLANE D H G DETAIL E 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−. MILLIMETERS INCHES DIM MIN MAX MIN MAX A 4.90 5.10 0.193 0.200 B 4.30 4.50 0.169 0.177 C −−− 1.20 −−− 0.047 D 0.05 0.15 0.002 0.006 F 0.50 0.75 0.020 0.030 G 0.65 BSC 0.026 BSC H 0.18 0.28 0.007 0.011 −W− J 0.09 0.20 0.004 0.008 J1 0.09 0.16 0.004 0.006 K 0.19 0.30 0.007 0.012 K1 0.19 0.25 0.007 0.010 L 6.40 BSC 0.252 BSC M 0_ 8_ 0_ 8_ SOLDERING FOOTPRINT 7.06 1 0.65 PITCH 16X 0.36 16X 1.26 DIMENSIONS: MILLIMETERS http://onsemi.com 7 MC74LCX257 ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. SCILLC reserves the right to make changes without further notice to any products herein. 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