74LVC540A OCTAL BUFFER/ LINE DRIVER WITH 3 STATE OUTPUTS Description Pin Assignments The 74LVC540A is an octal inverting buffer/driver is designed for driving bus lines or buffer memory address registers. The 3-state control gate is a 2-input AND gate with active-low inputs so that, if either output enable (OE1 or OE2) input is high, all eight outputs are in the high-impedance state..These devices feature inputs and outputs on opposite sides of the package that facilitate printed circuit board NEW PRODUCT layout. The device is designed for operation with a power supply range of 1.65V to 3.6V. The inputs are tolerant to 5.5V allowing this device to be used in a mixed voltage environment. The device is fully specified for partial power down applications using IOFF. The IOFF circuitry disables the output preventing damaging current backflow when the device is powered down. Features Applications • • Supply Voltage Range from 1.65V to 3.6V Sinks or Sources 24mA at VCC = 3V • • CMOS Low Power Consumption IOFF Supports Partial Power Down Operation • Inputs or Outputs Accept Up to 5.5V • Inputs Can Be Driven by 3.3V or 5V Allowing for Mixed Voltage • General Purpose Logic • Bus Driving • Power Down Signal Isolation • Applications • • Schmitt Trigger Action at All Inputs Typical VOLP (Quiet Output Ground Bounce) Less Than 0.8V with Wide array of products such as: PCs, Notebooks, Netbooks, Ultrabooks Networking Computer Peripherals, Hard Drives, CD/DVD ROM TV, DVD, DVR, Set Top Box VCC = 3.3V and TA = +25°C • Typical VOHV (Quiet Output dynamic VOH) Greater than 2.0V with VCC = 3.3V and TA = +25°C • • • ESD Protection Tested per JESD 22 Exceeds 200-V Machine Model (A115) Exceeds 2000-V Human Body Model (A114) Exceeds 1000-V Charged Device Model (C101) Latch-Up Exceeds 250mA per JESD 78, Class I All devices are: Totally Lead-Free & Fully RoHS compliant (Notes 1 & 2) Halogen and Antimony Free. “Green” Device (Note 3) Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen and Antimony free, "Green" and Lead-Free. 3. Halogen and Antimony free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds. 74LVC540A Document number: DS35890 Rev. 1 - 2 1 of 10 www.diodes.com July 2014 © Diodes Incorporated 74LVC540A Ordering Information 74 LVC Logic Device Function NEW PRODUCT 74 : Logic Prefix 540 : Package (Note 4 & 5) 74LVC540AT20-13 T20 TSSOP-20 74LVC540AQ20-13 Q20 V-QFN4525-20 Notes: Package Octal Buffer/Line Driver with 3 State Outputs Package Code Part Number 540A xxx -13 Packing T20 : TSSOP-20 Q20 : QFN-20 Package Size 6.4mm X 6.5mm X 1.2mm 0.65 mm lead pitch 2.5mm X 4.5mm X 0.95mm 0.50 mm lead pitch -13 : 13” Tape & Reel 13” Tape and Reel Quantity Part Number Suffix 2500/Tape & Reel -13 2500/Tape & Reel -13 4. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf. 5. V-QFN4525-20 is a JEDEC recognized naming convention that specifies the package thickness category as V and the number 4525 describes the package as 4.5mm X 2.5mm. Pin Descriptions Pin Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Pin Name OE1 A1 A2 A3 A4 A5 A6 A7 A8 GND B8 B7 B6 B5 B4 B3 B2 B1 OE2 VCC Logic Diagram INPUTS Description OE1 L L H X Output Enable 1 Data Input Data Input Data Input Data Input Data Input Data Input Data Input Data Input Ground Data Output Data Output Data Output Data Output Data Output Data Output Data Output Data Output Output Enable 2 Supply Voltage 74LVC540A Document number: DS35890 Rev. 1 - 2 Function Table 2 of 10 www.diodes.com OE2 L L X H A L H X X OUTPUT Q H L Z Z July 2014 © Diodes Incorporated 74LVC540A Absolute Maximum Ratings (Notes 6 & 7) Symbol ESD HBM ESD CDM ESD MM Rating 2 1 200 Unit kV kV V V Supply Voltage Range -0.5 to +7.0 VI Input Voltage Range -0.5 to +7.0 V IIK Input Clamp Current -20 mA IOK Output Clamp Current VCC NEW PRODUCT Description Human Body Model ESD Protection Charged Device Model ESD Protection Machine Model ESD Protection IO VI< 0V VO< 0V Continuous Output Current -0.5V < VO VCC +0.5V -50 mA ±50 mA ICC Continuous Current Through VCC 100 mA IGND Continuous Current Through GND -100 mA Operating Junction Temperature -40 to +150 °C TSTG Storage Temperature -65 to +150 °C PTOT Total Power Dissipation 500 mW TJ Notes: 6. Stresses beyond the absolute maximum may result in immediate failure or reduced reliability. These are stress values and device operation should be within recommend values. 7. Forcing the maximum allowed voltage could cause a condition exceeding the maximum current or conversely forcing the maximum current could cause a condition exceeding the maximum voltage. The ratings of both current and voltage must be maintained within the controlled range. Recommended Operating Conditions (Note 8) Symbol Parameter Min 1.65 1.5 0 0 — — — — — — — — Max 3.6 — 5.5 VCC -4 -8 -12 -24 4 8 12 24 Unit V V V V Input Transition Rise or Fall Rate — 10 ns/V Operating Free-Air Temperature -40 +125 ºC VCC Supply Voltage VI VO Input Voltage Output Voltage IOH High-Level Output Current IOL Low-Level Output Current ∆t/∆V TA Note: Conditions Operating Data Retention Only — — VCC = 1.65V VCC = 2.3V VCC = 2.7V VCC = 3.0V VCC = 1.65V VCC = 2.3V VCC = 2.7V VCC = 3.0V mA mA 8. Unused inputs should be held at VCC or ground. 74LVC540A Document number: DS35890 Rev. 1 - 2 3 of 10 www.diodes.com July 2014 © Diodes Incorporated 74LVC540A Electrical Characteristics NEW PRODUCT Symbol Parameter Test Conditions VIH High-Level Input Voltage VIL Low-Level Input voltage VOH VOL IOFF II IOZ ICC IOH = -12mA IOH = -24mA IOL = 100μA IOL = 4mA IOL = 8mA IOL = 12mA IOL = 24mA Low-Level Output Voltage Power Down Leakage Current Input Current Control Pins Z-state Current Including Input Current I/O Pins Supply Current ∆ICC Additional Supply Current Ci Input Capacitance 1.65V to 1.95V 2.3V to 2.7V 3.0V to 3.6V 1.65V to 1.95V 2.3V to 2.7V 3.0V to 3.6V 1.65V to 3.6V 1.65V 2.3V 2.7V 3.0V 3.0V 1.65V to 3.6V 1.65V 2.3V 2.7V 3.0V IOH = -50μA IOH = -4mA IOH = -8mA High-Level Output Voltage VCC VI or VO = 0 or 5.5V TA = -40°C to +85°C Min Max — VCC X 0.65 1.7 — 2 — — VCC X 0.35 — 0.7 — 0.8 VCC -0.2 — 1.2 — 1.7 — 2.2 — 2.4 — 2.3 — — 0.2 — 0.45 — 0.60 — 0.40 — 0.55 TA = +85°C to +125°C Min Max VCC X 0.65 — 1.7 — 2 — — VCC X 0.35 — 0.7 — 0.8 VCC -0.3 — 1.05 — 1.65 — 2.05 — 2.48 — 2.0 — — 0.3 — 0.65 — 0.80 — 0.60 — 0.80 Unit V V V V 0V — ±10 — ±20 μA VI =GND or 5.5V 0 to 3.6V — ±5 — ±20 μA VI =GND or 5.5V VO = 0 to 5.5V 3.6V — ±5 — ±20 μA 3.6V — 10 — 40 μA 2.7V to 3.6V — 500 — 5000 μA VI = GND or VCC, IO = 0 One input at VCC -0.6V Io = 0A Control Pins VI = GND or VCC I/O Pins 0V to 3.6V 4.0 typical 4.0 typical 5.5 typical 5.5 typical pF Switching Characteristics Symbol Parameter Test Conditions tPD Propagation Delay AN to YN Figure 1 Enable Time Figure 1 tEN tDIS tsk(0) OE to YN Disable Time OE Figure 1 to YN Output Skew Time 74LVC540A Document number: DS35890 Rev. 1 - 2 VCC 1.8V ± 0.15V 2.5V ± 0.3V 2.7V 3.3V ± 0.3V 1.8V ± 0.15V 2.5V ± 0.3V 2.7V 3.3V ± 0.3V 1.8V ± 0.15V 2.5 V ± 0.3V 2.7V 3.3V ± 0.3V Min 1 1 1 1.5 1 1 1 1.5 1 1 1 1.7 TA = +25°C Typ 6.0 3.9 4.2 3.8 7 4.5 5.4 4.4 7.8 5 4.4 4.1 3.3V ± 0.3V -40°C to +85°C Max 12.2 7.6 7.2 6.5 14.8 10 8.3 6.4 15.5 8.7 8.0 7.1 1.0 4 of 10 www.diodes.com Min 1 1 1 1.5 1 1 1 1.5 1 1 1 1.7 Max 16.4 8.6 7.8 6.9 16.5 10.5 9.0 6.6 16.4 9.0 8.2 7.4 +85°C to +125°C Min 1 1 1 1.5 1 1 1 1.5 1 1 1 1.7 Max 17.9 9.7 8.9 7.8 18.5 12.4 11.5 8.0 18.2 9.6 10.0 9.0 1.5 Unit ns ns ns ns July 2014 © Diodes Incorporated 74LVC540A Operating Characteristics TA = +25°C Symbol NEW PRODUCT Cpd Parameter Test Conditions Power dissipation capacitance per gate F= 10 MHz Outputs Enabled VCC 1.8V ± 0.15V 2.5V ± 0.3V 3.3V ± 0.3V Typ 9.9 10.2 10.6 Unit pF Package Characteristics Symbol θJA θJC θJA θJC Note: Parameter Thermal Resistance Junction-to-Ambient Thermal Resistance Junction-to-Case Thermal Resistance Junction-to-Ambient Thermal Resistance Junction-to-Case Package Test Conditions Min Typ Max Unit TSSOP-20 (Note 9) — 74 — °C/W TSSOP-20 (Note 9) — 15 — °C/W V-QFN4525-20 (Note 9) — 67 — °C/W V-QFN4525-20 (Note 9) — 20 — °C/W 9. Test conditions for TSSOP-20 and V-QFN4525-20: Devices mounted on 4 layer FR-4 substrate PC board, 2oz copper, with minimum recommended pad layout per JESD 51-7. 74LVC540A Document number: DS35890 Rev. 1 - 2 5 of 10 www.diodes.com July 2014 © Diodes Incorporated 74LVC540A Parameter Measurement Information NEW PRODUCT TEST tPLH/tPHL tPLZ/tPZL tPHZ/tPZH Inputs VCC S1 Open Vload GND VM VLOAD CL RL V∆ ≤2ns VCC/2 2 x VCC 30pF 1KΩ 0.15V ≤2ns VCC/2 2 x VCC 30pF 500Ω 0.15V VI tr/tf 1.8V ± 0.15V VCC 2.5V ± 0.2V VCC 2.7V 2.7V ≤2.5ns 1.5V 6V 50pF 500Ω 0.3V 3.3V ± 0.3V 2.7V ≤2.5ns 1.5V 6V 50pF 500Ω 0.3V Voltage Waveform Pulse Duration Voltage Waveform Enable and Disable Times Low and High Level Enabling Voltage Waveform Propagation Delay Times Inverting and Non Inverting Outputs Notes: A. Includes test lead and test apparatus capacitance. B. All pulses are supplied at pulse repetition rate ≤ 10 MHz. C. Inputs are measured separately one transition per measurement. D. tPLZ and tPHZ are the same as tdis. E. tPZL and tPZH are the same as tEN0 F. tPLH and tPHL are the same as tPD. Figure 1 Load Circuit and Voltage Waveforms 74LVC540A Document number: DS35890 Rev. 1 - 2 6 of 10 www.diodes.com July 2014 © Diodes Incorporated 74LVC540A Marking Information (1) TSSOP20 NEW PRODUCT 74LVC540A Part Number 74LVC540AT20 (2) Package TSSOP-20 QFN-20 (V-QFN4525-20) ( Top View ) YY : Year : 08, 09,10~ WW : Week : 01~52; 52 Logo Part Number 74LVC540A represents 52 and 53 week X X : Internal Codes YY WW X X terminal 1 index area Part Number 74LVC540AQ20 74LVC540A Document number: DS35890 Rev. 1 - 2 Package V-QFN4525-20 7 of 10 www.diodes.com July 2014 © Diodes Incorporated 74LVC540A Package Outline Dimensions (All Dimensions in mm) Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for the latest version. (1) TSSOP-20 D NEW PRODUCT θ2 E1 E 0.25 Gauge Plane θ3 PIN 1 ID MARK Seating Plane θ1 e L DETAIL L1 A2 b (2) A TSSOP-20 Dim Min Max Typ A 1.20 A1 0.05 0.15 A2 0.80 1.05 b 0.19 0.30 c 0.09 0.20 D 6.40 6.60 6.50 E 6.20 6.60 6.40 E1 4.30 4.50 4.40 e 0.65 BSC L 0.45 0.75 0.60 L1 1.0 REF 0° 8° θ1 10° 14° 12° θ2 10° 14° 12° θ3 All Dimensions in mm A1 QFN-20 (V-QFN4525-20) 1 A 3 A A e n a l P g n i t a e S D I 1 # n i P ︶ D ︵ e x 4 1 Z ︵ ︶ E 2 E 2 D x 0 2 L ︵ Document number: DS35890 Rev. 1 - 2 ︵ x 0 2 74LVC540A b x 4 Z ︵ ︶ ︶ V-QFN4525-20 Dim Min Max Typ A 0.75 0.85 0.80 A1 0.00 0.05 0.02 A3 0.15 b 0.18 0.30 0.23 D 4.45 4.55 4.50 D2 2.85 3.15 3.00 E 2.45 2.55 2.50 E2 0.85 1.15 1.00 e 0.50BSC L 0.30 0.50 0.40 Z 0.385 Z1 0.885 All Dimensions in mm ︶ 8 of 10 www.diodes.com July 2014 © Diodes Incorporated 74LVC540A Suggested Pad Layout Please see AP02001 at http://www.diodes.com/datasheets/ap02001.pdf for the latest version. (1) TSSOP-20 X (20x) NEW PRODUCT C Y1 Dimensions C X X1 Y Y1 Y2 Y2 Y (20x) Value (in mm) 0.650 0.420 6.270 1.789 4.160 7.720 X1 (2) QFN-20 (V-QFN4525-20) 4 X 3 X 1 X 2 X 3 Y 1 Y 2 Y Y Document number: DS35890 Rev. 1 - 2 Value (in mm) 0.500 0.330 0.600 3.200 3.830 4.800 0.600 1.200 0.830 2.800 C X 74LVC540A Dimensions C X X1 X2 X3 X4 Y Y1 Y2 Y3 9 of 10 www.diodes.com July 2014 © Diodes Incorporated 74LVC540A IMPORTANT NOTICE NEW PRODUCT DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION). Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to this document and any product described herein. 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