Revised April 2005 74LVX244 Low Voltage Octal Buffer/Line Driver with 3-STATE Outputs General Description Features The LVX244 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 74LVX244M 74LVX244SJ 74LVX244MTC Package Description M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide M20D Pb-Free 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 Devices also available in Tape and Reel. Specify by appending suffix letter "X" to the ordering code. Pb-Free package per JEDEC J-STD-020B. Pin Descriptions Logic Symbol IEEE/IEC Pin Names Description OE1, OE2 3-STATE Output Enable Inputs I0-I7 Inputs O0-O7 Outputs Truth Tables Inputs Connection Diagram Outputs In OE1 L L L L H H H X Z Inputs H X (c) 2005 Fairchild Semiconductor Corporation DS011552 (Pins 12, 14, 16, 18) Outputs OE2 In L L L L H H H X HIGH Voltage Level Immaterial (Pins 3, 5, 7, 9) Z L LOW Voltage Level Z High Impedance www.fairchildsemi.com 74LVX244 Low Voltage Octal Buffer/Line Driver with 3-STATE Outputs February 1993 74LVX244 Absolute Maximum Ratings(Note 1) Recommended Operating Conditions (Note 2) 0.5V to 7.0V Supply Voltage (VCC) DC Input Diode Current (IIK) VI Supply Voltage (VCC) 0.5V 20 mA 0.5V to 7V DC Input Voltage (VI) VO 0V to 5.5V Output Voltage (Vo) DC Output Diode Current (IOK) VO 2.0V to 3.6V Input Voltage (VI) 0V to VCC 40qC to 85qC Operating Temperature (TA) 0.5V VCC 0.5V 20 mA 20 mA 0.5V to VCC 0.5V DC Output Voltage (VO) Input Rise and Fall Time ('t/'V) 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. DC Output Source r25 mA or Sink Current (IO) DC VCC or Ground Current r75 mA 65qC to 150qC (ICC or IGND) Storage Temperature (TSTG) Power Dissipation 0 ns/V to 100 ns/V Note 2: Unused inputs must be held HIGH or LOW. They may not float. 180 mW DC Electrical Characteristics Symbol VIH VIL VOH VOL IOZ Parameter TA VCC Min 25qC TA Typ Max 40qC to 85qC Min HIGH Level Input 2.0 1.5 1.5 Voltage 3.0 2.0 2.0 3.6 2.4 2.4 2.0 0.5 0.5 Voltage 3.0 0.8 0.8 3.6 0.8 0.8 2.0 1.9 2.0 1.9 Voltage 3.0 2.9 3.0 2.9 3.0 2.58 V VIN VIH or VIL IOH 50 PA IOH 50 PA V 2.48 LOW Level Output 2.0 0.0 Voltage 3.0 0.0 3-STATE Output Conditions V LOW Level Input HIGH Level Output Units Max IOH 0.1 0.1 VIN 0.1 0.1 3.0 0.36 0.44 3.6 r0.25 r2.5 PA VIN 50 PA IOL 50 PA IOL 4 mA V Off-State Current VOUT VIH or VIL VCC or GND IIN Input Leakage Current 3.6 r0.1 r1.0 PA VIN 5.5V or GND ICC Quiescent Supply Current 3.6 4.0 40.0 PA VIN VCC or GND Noise Characteristics Symbol (Note 3) VCC Parameter (V) TA Typ 25qC Units CL (pF) 50 Limit VOLP Quiet Output Maximum Dynamic VOL 3.3 0.5 0.8 V VOLV Quiet Output Minimum Dynamic VOL 3.3 0.5 0.8 V 50 VIHD Minimum HIGH Level Dynamic Input Voltage 3.3 2.0 V 50 VILD Maximum LOW Level Dynamic Input Voltage 3.3 0.8 V 50 Note 3: Input tr tf 3 ns www.fairchildsemi.com 2 4 mA VIH or VIL IOL 74LVX244 AC Electrical Characteristics Symbol VCC Parameter tPLH Propagation Delay tPHL Time (V) TA Min 2.7 3.3 r 0.3 tPZL 3-STATE Output tPZH Enable Time 2.7 25qC Max Min Max 6.1 11.4 1.0 13.5 8.6 14.9 1.0 17.0 4.7 7.1 1.0 8.5 7.2 10.6 1.0 7.1 13.8 1.0 9.6 3.3 r 0.3 40qC to 85qC TA Typ 17.3 5.5 8.8 8.0 12.3 1.0 50 pF 15 pF 12.0 CL 50 pF 16.5 CL 15 pF, RL 1 k: CL 50 pF, RL 1 k: CL 15 pF, RL 1 k: CL 50 pF, RL 1 k: CL 50 pF, RL 1 k: CL 50 pF ns 20.0 1.0 10.5 1.0 15 pF CL ns 14.0 3-STATE Output 2.7 11.6 16.0 1.0 19.0 tPHZ Disable Time 3.3 r 0.3 9.7 11.4 1.0 13.0 tOSLH Output to Output 2.7 1.5 1.5 tOSHL Skew (Note 4) 3.3 1.5 1.5 |tPLHm tPLHn|, tOSHL Conditions CL CL tPLZ Note 4: Parameter guaranteed by design. tOSLH Units ns ns |t PHLm t PHLn| Capacitance Symbol TA Parameter Min 25qC TA 40qC to 85qC 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. 3 www.fairchildsemi.com 74LVX244 Physical Dimensions inches (millimeters) unless otherwise noted 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide Package Number M20B www.fairchildsemi.com 4 74LVX244 Physical Dimensions inches (millimeters) unless otherwise noted (Continued) Pb-Free 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide Package Number M20D 5 www.fairchildsemi.com 74LVX244 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. 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