Revised September 1999 74LVX541 Low Voltage Octal Buffer/Line Driver with 3-STATE Outputs General Description Features The LVX541 is an octal non-inverting buffer and line driver designed to be employed as a memory address driver, clock driver and bus oriented transmitter or receiver which provides improved PC board density. The inputs tolerate up to 7V allowing interface of 5V systems to 3V systems. ■ Input voltage translation from 5V to 3V ■ Ideal for low power/low noise 3.3V applications ■ Guaranteed simultaneous switching noise level and dynamic threshold performance Ordering Code: Order Number Package Number 74LVX541M 74LVX541SJ 74LVX541MTC M20B Package Description 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide M20D 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide MTC20 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Surface mount packages are also available on Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Connection Diagram Logic Symbol IEEE/IEC Pin Descriptions Pin Names Truth Table Descriptions Inputs OE1, OE2 3-STATE Output Enable Inputs I0 - I7 Inputs O0 - O7 3-STATE Outputs OE1 DS500291 I Outputs L L H H H X X Z X H X Z L L L L H = HIGH Voltage Level L = LOW Voltage Level © 1999 Fairchild Semiconductor Corporation OE2 X = Immaterial Z = High Impedance www.fairchildsemi.com 74LVX541 Low Voltage Octal Buffer/Line Driver with 3-STATE Outputs September 1999 74LVX541 Absolute Maximum Ratings(Note 1) Recommended Operating Conditions (Note 2) −0.5V to +7.0V Supply Voltage (VCC) DC Input Diode Current (IIK) 2.0V to +3.6V Supply Voltage (VCC) VI = −0.5V −20 mA −0.5V to 7V DC Input Voltage (VI) 0V to +5.5V Input Voltage (VI) Output Voltage (VO) DC Output Diode Current (IOK) 0V to VCC −40°C to +85°C Operating Temperature (TA) VO = −0.5V −20 mA VO = VCC + 0.5V +20 mA Input Rise and Fall Time (∆t/∆V) 0 ns/V to 100 ns/V −0.5V to VCC + 0.5V DC Output Voltage (VO) DC Output Source Note 1: 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. ±25 mA or Sink Current (IO) DC VCC or Ground Current ±75 mA (ICC or IGND) −65°C to +150°C Storage Temperature (TSTG) Power Dissipation Note 2: Unused inputs must be held HIGH or LOW. They may not float 180 mW DC Electrical Characteristics Symbol VIH VIL VOH VOL VCC Parameter TA = 25°C Min TA = −40°C to +85°C Typ Max HIGH Level Input 2.0 1.5 1.5 Voltage 3.0 2.0 2.0 3.6 2.4 2.4 Max 2.0 0.5 0.5 Voltage 3.0 0.8 0.8 3.6 0.8 0.8 HIGH Level Output 2.0 1.9 2.0 1.9 Voltage 3.0 2.9 3.0 2.9 3.0 2.58 Conditions V IOH = −50 µA V VIN = VIH or VIL IOH = −50 µA IOH = −4 mA 2.48 LOW Level Output 2.0 0.0 0.1 0.1 Voltage 3.0 0.0 0.1 0.1 0.36 0.44 3-STATE Output Units V LOW Level Input 3.0 IOZ Min IOL = 50 µA V VIN = VIH or VIL IOL = 50 µA IOL = 4 mA VIN = VIH or VIL 3.6 ±0.25 ±2.5 µA IIN Input Leakage Current 3.6 ±0.1 ±1.0 µA VIN = 5.5V or GND ICC Quiescent Supply Current 3.6 4.0 40.0 µA VIN = VCC or GND OFF-State Current VOUT = VCC or GND Noise Characteristics (Note 3) Symbol Parameter TA = 25°C VCC (V) Typ Limits Units Conditions VOLP Quiet Output Maximum Dynamic VOL 3.3 0.5 0.8 V CL = 50 pF VOLV Quiet Output Minimum Dynamic VOL 3.3 −0.5 −0.8 V CL = 50 pF VIHD Minimum HIGH Level Dynamic Input Voltage 3.3 2.0 V CL = 50 pF VILD Maximum HIGH Level Dynamic Input Voltage 3.3 0.8 V CL = 50 pF Note 3: Input tr = tf = 3 ns. www.fairchildsemi.com 2 Symbol VCC (V) Parameter tPLH Propagation Delay tPHL Time tPZL 3-STATE Output tPZH Enable Time 2.7 TA = 25°C Min TA = −40°C to +85°C Typ Max Min Max 6.1 11.3 1.0 13.5 Units Conditions CL = 15 pF CL = 50 pF 8.6 14.9 1.0 17.0 3.3 ± 0.3 4.7 7.0 1.0 8.5 7.2 10.5 1.0 12.0 CL = 50 pF 2.7 7.1 13.8 1.0 16.5 CL = 15 pF 9.6 17.3 1.0 20.0 CL = 50 pF 6.8 10.5 1.0 12.5 9.3 14.0 1.0 16.0 2.7 11.6 17.9 1.0 20.0 3.3 ± 0.3 10.7 15.4 1.0 17.5 ns CL = 15 pF RL = 1 kΩ 3.3 ± 0.3 ns RL = 1 kΩ CL = 15 pF RL = 1 kΩ CL = 50 pF RL = 1 kΩ tPLZ 3-STATE Output tPHZ Disable Time tOSLH Output to Output 2.7 1.5 1.5 tOSHL Skew (Note 4) 3.3 1.5 1.5 ns ns CL = 50 pF RL = 1 kΩ CL = 50 pF Note 4: Parameter guaranteed by design. tOSLH = |tPLHm − tPLHn|; tOSHL = |t PHLm − t PHLn|. Capacitance Symbol Parameter TA = +25°C Min TA = −40°C to +85°C Typ Max 10 Min Max 10 Units CIN Input Capacitance 4 COUT Output Capacitance 6 pF pF CPD Power Dissipation Capacitance (Note 5) 19 pF Note 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.) = 3 CPD x VCC x fIN + ICC 8 (per bit) www.fairchildsemi.com 74LVX541 AC Electrical Characteristics 74LVX541 Physical Dimensions inches (millimeters) unless otherwise noted 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide Package Number M20B 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide Package Number M20D www.fairchildsemi.com 4 74LVX541 Low Voltage Octal Buffer/Line Driver with 3-STATE Outputs Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Package Number MTC20 Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at any time without notice to change said circuitry and specifications. LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. www.fairchildsemi.com 5 www.fairchildsemi.com