74LCX541 Low Voltage Octal Buffer/Line Driver with 5V Tolerant Inputs and Outputs Features General Description ■ 5V tolerant input and outputs The LCX541 is an octal buffer/line driver designed to be employed as memory and address drivers, clock drivers and bus oriented transmitter/receivers. The LCX541 is a non inverting option of the LCX540. ■ 2.3V–3.6V VCC specifications provided ■ 6.5ns tPD max (VCC = 3.3V), 10µA ICC max ■ Power-down high impedance inputs and outputs This device is similar in function to the LCX244 while providing flow-through architecture (inputs on opposite side from outputs). This pinout arrangement makes this device especially useful as an output port for microprocessors, allowing ease of layout and greater PC board density. ■ Supports live insertion/withdrawal1 ■ ±24 mA output drive (VCC = 3.0V) ■ Implements patented noise/ EMI reduction circuitry ■ Latch-up performance exceeds JEDEC 78 conditions ■ ESD performance – Human body model > 2000V – Machine model > 200V ■ Leadless Pb-Free DQFN package The LCX541 is designed for low voltage applications with capability of interfacing to a 5V signal environment. The LCX541 is fabricated with an advanced CMOS technology to achieve high speed operation while maintaining CMOS low power dissipation. Ordering Information Package Number Package Description 74LCX541WM M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide 74LCX541SJ M20D 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide Order Number 74LCX541BQX2 MLP020B Pb-Free 20-Terminal Depopulated Quad Very-Thin Flat Pack No Leads (DQFN), JEDEC MO-241, 2.5 x 4.5mm 74LCX541MSA MSA20 20-Lead Shrink Small Outline Package (SSOP), JEDEC MO-150, 5.3mm Wide 74LCX541MTC MTC20 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide 74LCX541MTC_NL3 MTC20 Pb-Free 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Pb-Free package per JEDED J-STD-020B. Notes: 1. To ensure the high impedance state during power up or down, OE should be tied to VCC through a pull-up resistor: the minimum value of the resistor is determined by the current-sourcing capability of the driver. 2. DQFN package available in Tape and Reel only. 3. “_NL” indicates Pb-Free package (per JEDEC J-STD-020B). Device available in Tape and Reel only. ©2006 Fairchild Semiconductor Corporation 74LCX541 Rev. 2.0.0 1 www.fairchildsemi.com 74LCX541 Low Voltage Octal Buffer/Line Driver with 5V Tolerant Inputs and Outputs February 2006 Pin Descriptions IEEE/IEC & OE1 OE2 Description OE1, OE2 3-STATE Output Enable Inputs I0–I7 Inputs O0–O7 Outputs EN I0 I1 I2 I3 I4 I5 I6 I7 O0 O1 O2 O3 O4 O5 O6 O7 Truth Table Inputs Connection Diagrams Pin Assignments for SOIC, SOP, SSOP, TSSOP OE1 I0 I1 I2 I3 I4 I5 I6 I7 GND Pin Names 1 20 2 19 3 18 4 17 5 16 6 7 15 14 8 13 9 12 10 11 Outputs OE1 OE2 I On L L H H H X X Z X H X Z L L L L H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Z = High Impedance VCC OE2 O0 O1 O2 O3 O4 O5 O6 O7 Pad Assignment for DQFN OE1 VCC 1 20 I0 2 19 OE2 I1 3 18 O0 I2 4 17 O1 I3 5 16 O2 I4 6 15 O3 I5 7 14 O4 I6 8 13 O5 I7 9 12 O6 10 11 GND O7 (Top View) 2 74LCX541 Rev. 2.0.0 www.fairchildsemi.com 74LCX541 Low Voltage Octal Buffer/Line Driver with 5V Tolerant Inputs and Outputs Logic Symbol The Absolute Maximum Ratings are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the Absolute Maximum Ratings. The “Recommended Operating Conditions” table will define the conditions for actual device operation. Symbol Parameter Conditions Value Units VCC 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 Output in 3-STATE Output in HIGH or LOW State4 −0.5 to VCC + 0.5 IIK DC Input Diode Current VI < GND −50 mA IOK DC Output Diode Current VO < GND −50 mA VO > VCC +50 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 −65 to +150 °C Recommended Operating Conditions5 Symbol VCC Parameter Supply Voltage VI Input Voltage VO Output Voltage IOH / IOL Output Current TA Free-Air Operating Temperature ∆t / ∆V Input Edge Rate Conditions Min. Max. Units Operating 2.0 3.6 V Data Retention 1.5 3.6 0 5.5 V HIGH or LOW State 0 VCC V 3-STATE 0 5.5 VCC = 3.0V − 3.6V ±24 VCC = 2.7V − 3.0V ±12 VCC = 2.3V − 2.7V ±8 VIN = 0.8V – 2.0V, VCC = 3.0V mA −40 85 °C 0 10 ns / V Notes: 4. IO Absolute Maximum Rating must be observed. 5. Unused inputs or I/O’s must be held HIGH or LOW. They may not float. 3 74LCX541 Rev. 2.0.0 www.fairchildsemi.com 74LCX541 Low Voltage Octal Buffer/Line Driver with 5V Tolerant Inputs and Outputs Absolute Maximum Ratings TA = −40°C to +85°C Symbol VIH VIL VOH VOL Parameter Conditions HIGH Level Input Voltage LOW Level Input Voltage HIGH Level Output Voltage LOW Level Output Voltage VCC (V) Min. 2.3 − 2.7 1.7 2.7 − 3.6 2.0 Max. V 2.3 − 2.7 0.7 2.7 − 3.6 0.8 IOH = −100µA 2.3 − 3.6 VCC – 0.2 IOH = –8 mA 2.3 1.8 IOH = −12 mA 2.7 2.2 IOH = −18 mA 3.0 2.4 IOH = −24 mA 3.0 2.2 IOL = 100µA 2.3 − 3.6 0.2 V IOL = 8mA 2.3 0.6 IOL = 12 mA 2.7 0.4 IOL = 16 mA 3.0 0.4 IOL = 24 mA 3.0 0.55 2.3 − 3.6 ±5.0 µA 0 10 µA µA II Input Leakage Current 0 ≤ VI ≤ 5.5V Power-Off Leakage Current VI or VO = 5.5V ICC Quiescent Supply Current VI = VCC or GND 2.3 − 3.6 10 3.6V ≤ VI, VO ≤ 2.3 − 3.6 ±10 2.3 − 3.6 500 Increase in ICC per Input V V IOFF ∆ICC Units 5.5V6 VIH = VCC = 0.6V µA AC Electrical Characteristics TA = −40°C to +85°C, RL = 500Ω Symbol Parameter VCC = 3.3V ± 0.3V VCC = 2.7V VCC = 2.5V ± 0.2V CL = 50pF CL = 50pF CL = 30pF Min. Max. Min. Max. Min. Max. Units tPHL, tPLH Propagation Delay 1.5 6.5 1.5 7.5 1.5 7.8 ns tPZL, tPZH Output Enable Time 1.5 8.5 1.5 9.5 1.5 10.5 ns tPLZ, tPHZ Output Disable Time 1.5 7.5 1.5 8.5 1.5 9.0 ns tOSHL, tOSLH Output to Output Skew7 1.0 ns Notes 6. Outputs disabled or 3-STATE only. 7. 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 (t OSHL) or LOW-toHIGH (tOSLH). 4 74LCX541 Rev. 2.0.0 www.fairchildsemi.com 74LCX541 Low Voltage Octal Buffer/Line Driver with 5V Tolerant Inputs and Outputs DC Electrical Characteristics Symbol VOLP VOLV Parameter Conditions VCC (V) TA = 25°C Typical Units V CL = 50 pF, VIH = 3.3V, VIL = 0V 3.3 0.8 CL = 30 pF, VIH = 2.5V, VIL = 0V 2.5 0.6 Quiet Output Dynamic Valley VOL CL = 50 pF, VIH = 3.3V, VIL = 0V 3.3 −0.8 CL = 30 pF, VIH = 2.5V, VIL = 0V 2.5 −0.6 Quiet Output Dynamic Peak VOL V Capacitance Symbol Parameter Conditions Typical Units CIN Input Capacitance VCC = Open, VI = 0V or VCC 7 pF COUT Output Capacitance VCC = 3.3V, VI = 0V or VCC 8 pF CPD Power Dissipation Capacitance VCC = 3.3V, VI = 0V or VCC, f = 10 MHz 25 pF 5 74LCX541 Rev. 2.0.0 www.fairchildsemi.com 74LCX541 Low Voltage Octal Buffer/Line Driver with 5V Tolerant Inputs and Outputs Dynamic Switching Characteristics 74LCX541 Low Voltage Octal Buffer/Line Driver with 5V Tolerant Inputs and Outputs AC Loading and Waveforms (Generic for LCX Family) VCC OPEN 500Ω TEST SIGNAL tPLH, tPHI tPZH, tPHZ tPZL, tPLZ GND DUT VI CL 500Ω Figure 1. AC Test Circuit (CL includes probe and jig capacitance) Test Switch tPLH, tPHL tPZL, tPLZ Open 6V at VCC = 3.3 ± 0.3V VCC x 2 at VCC = 2.5 ± 0.2V GND tPZH, tPHZ DATA IN VCC Vmi tpxx OUTPUT CONTROL GND tPZL tpxx DATA OUT Waveform for Inverting and Non-Inverting Functions tS tPLH MR OR CLEAR Vmo OUTPUT CONTROL Vmi tPZH GND VCC GND trec Vmi tr VCC tf GND tPHZ Vmo VCC Setup Time, Hold Time and Recovery Time for Logic Propagation Delay, Pulse Width and trec Waveforms DATA OUT Vmi tS Vmo tH CONTROL INPUT Vmi OUTPUT Vmi GND trec tPHL VX VOL DATA IN VCC Vmi CLOCK Vmo 3-STATE Output High Enable and Disable Times for Logic tW CONTROL IN GND tPLZ DATA OUT Vmo VCC Vmi ANY OUTPUT VOH VY 90% 10% 90% 10% VOH VOL trise and tfall 3-STATE Output Low Enable and Disable Times for Logic Figure 2. Waveforms (Input Characteristics; f = 1MHz, tr = tf = 3ns) Symbol 3.3V ± 0.3V VCC 2.7V Vmi Vmo Vx Vy 1.5V 1.5V VOL + 0.3V VOH − 0.3V 1.5V 1.5V VOL + 0.3V VOH − 0.3V 6 74LCX541 Rev. 2.0.0 2.5V ± 0.2V VCC / 2 VCC / 2 VOL + 0.15V VOH − 0.15V www.fairchildsemi.com Input Stage P2 P1 VCC Data ESD P5 D2 N+/P– X1 VDD N1 N2 GTO™ Output Input Stage D6 N+/P– P4 P3 N5 Enable N4 ESD D4 N+/P– N3 7 74LCX541 Rev. 2.0.0 www.fairchildsemi.com 74LCX541 Low Voltage Octal Buffer/Line Driver with 5V Tolerant Inputs and Outputs Schematic Diagram (Generic for LCX Family) Tape Format for DQFN Package Designator Tape Section Number Cavities Cavity Status Cover Tape Status BQX Leader (Start End) 125 (typ) Empty Sealed Carrier 3000 Filled Sealed Trailer (Hub End) 75 (typ) Empty Sealed Tape Dimensions inches (millimeters) Reel Dimensions inches (millimeters) Tape Size A B C D N W1 W2 12 mm 13.0 (330.0) 0.059 (1.50) 0.512 (13.00) 0.795 (20.20) 2.165 (55.00) 0.488 (12.4) 0.724 (18.4) 8 74LCX541 Rev. 2.0.0 www.fairchildsemi.com 74LCX541 Low Voltage Octal Buffer/Line Driver with 5V Tolerant Inputs and Outputs Tape and Reel Specification 74LCX541 Low Voltage Octal Buffer/Line Driver with 5V Tolerant Inputs and Outputs Physical Dimensions inches (millimeters) unless otherwise noted 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide Package Number M20B 9 74LCX541 Rev. 2.0.0 www.fairchildsemi.com 74LCX541 Low Voltage Octal Buffer/Line Driver with 5V Tolerant Inputs and Outputs Physical Dimensions (Continued) inches (millimeters) unless otherwise noted 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide Package Number M20D 10 74LCX541 Rev. 2.0.0 www.fairchildsemi.com 74LCX541 Low Voltage Octal Buffer/Line Driver with 5V Tolerant Inputs and Outputs Physical Dimensions (Continued) inches (millimeters) unless otherwise noted Pb-Free 20-Terminal Depopulated Quad Very-Thin Flat Pack No Leads (DQFN), JEDEC MO-241, 2.5 x 4.5mm Package Number MLP020B 11 74LCX541 Rev. 2.0.0 www.fairchildsemi.com 74LCX541 Low Voltage Octal Buffer/Line Driver with 5V Tolerant Inputs and Outputs Physical Dimensions (Continued) inches (millimeters) unless otherwise noted 20-Lead Shrink Small Outline Package (SSOP), JEDEC MO-150, 5.3mm Wide Package Number MSA20 12 74LCX541 Rev. 2.0.0 www.fairchildsemi.com 74LCX541 Low Voltage Octal Buffer/Line Driver with 5V Tolerant Inputs and Outputs Physical Dimensions (Continued) inches (millimeters) unless otherwise noted 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Package Number MTC20 13 74LCX541 Rev. 2.0.0 www.fairchildsemi.com The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is not intended to be an exhaustive list of all such trademarks. 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PRODUCT STATUS DEFINITIONS Definition of Terms Datasheet Identification Product Status Definition Advance Information Formative or In Design This datasheet contains the design specifications for product development. Specifications may change in any manner without notice. Preliminary First Production This datasheet contains preliminary data, and supplementary data will be published at a later date. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design. No Identification Needed Full Production This datasheet contains final specifications. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design. Obsolete Not In Production This datasheet contains specifications on a product that has been discontinued by Fairchild semiconductor. The datasheet is printed for reference information only. Rev. I18 14 74LCX541 Rev. 2.0.0 www.fairchildsemi.com 74LCX541 Low Voltage Octal Buffer/Line Driver with 5V Tolerant Inputs and Outputs TRADEMARKS