74LVQ244SC

74LVQ244 Low Voltage Octal Buffer/Line Driver with 3-STATE Outputs February 1992 Revised June 2001 74LVQ244 Low Voltage Octal Buffer/Line Driver with 3-STATE Outputs General Description The LVQ244 is an octal 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. Features s Ideal for low power/low noise 3.3V applications s Implements patented EMI reduction circuitry s Available in SOIC JEDEC, SOIC EIAJ and QSOP packages s Guaranteed simultaneous switching noise level and dynamic threshold performance s Improved latch-up immunity s Guaranteed incident wave switching into 75Ω s 4 kV minimum ESD immunity Ordering Code: Order Number 74LVQ244SC 74LVQ244SJ 74LVQ244QSC Package Number M20B M20D MQA20 Package Description 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 20-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150" Wide Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code. Logic Symbol IEEE/IEC Connection Diagram Truth Tables Inputs OE1 In L H X Outputs (Pins 12, 14, 16, 18) L H Z Outputs (Pins 3, 5, 7, 9) L H Z Pin Descriptions Pin Names OE1, OE2 I0–I7 O0–O7 Description 3-STATE Output Enable Inputs Inputs Outputs L L H Inputs OE2 L L H H = HIGH Voltage Level X = Immaterial In L H X L = LOW Voltage Level Z = High Impedance © 2001 Fairchild Semiconductor Corporation DS011356 www.fairchildsemi.com 74LVQ244 Absolute Maximum Ratings(Note 1) Supply Voltage (VCC) DC Input Diode Current (IIK) VI = −0.5V VI = VCC + 0.5V DC Input Voltage (VI) DC Output Diode Current (IOK) VO = −0.5V VO = VCC + 0.5V DC Output Voltage (VO) DC Output Source or Sink Current (IO) DC VCC or Ground Current (ICC or IGND) Storage Temperature (TSTG) DC Latch-Up Source or Sink Current −0.5V to +7.0V −20 mA +20 mA −0.5V to VCC + 0.5V −20 mA +20 mA −0.5V to VCC + 0.5V ±50 mA ±400 mA −65°C to +150°C ±300 mA Recommended Operating Conditions (Note 2) Supply Voltage (VCC) Input Voltage (VI) Output Voltage (VO) Operating Temperature (TA) Minimum Input Edge Rate ∆V/∆t VIN from 0.8V to 2.0V VCC @ 3.0V 125 mV/ns 2.0V to 3.6V 0V to VCC 0V to VCC −40°C to +85°C 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. Note 2: Unused inputs must be held HIGH or LOW. They may not float. DC Electrical Characteristics Symbol VIH VIL VOH Parameter Minimum High Level Input Voltage Maximum Low Level Input Voltage Minimum High Level Output Voltage VOL Maximum Low Level Output Voltage IIN IOLD IOHD ICC Maximum Input Leakage Current Minimum Dynamic (Note 4) Output Current Maximum Quiescent Supply Current IOZ Maximum 3-STATE Leakage Current VOLP VOLV VIHD VILD Quiet Output Maximum Dynamic VOL Quiet Output Minimum Dynamic VOL Minimum High Level Dynamic Input Voltage Maximum Low Level Dynamic Input Voltage 3.6 ±0.25 ±2.5 µA VCC (V) 3.0 3.0 3.0 3.0 3.0 3.0 3.6 3.6 3.6 3.6 4.0 0.002 TA = +25°C Typ 1.5 1.5 2.99 2.0 0.8 2.9 2.58 0.1 0.36 ±0.1 TA = −40°C to +85°C Guaranteed Limits 2.0 0.8 2.9 2.48 0.1 0.44 ±1.0 36 −25 40.0 V V V V V V µA mA mA µA VOUT = 0.1V or VCC − 0.1V VOUT = 0.1V or VCC − 0.1V IOUT = −50 µA VIN = VIL or VIH (Note 3) IOH = −12 mA IOUT = 50 µA VIN = VIL or VIH (Note 3) IOL = 12 mA VI = VCC, GND VOLD = 0.8V Max (Note 5) VOHD = 2.0V Min (Note 5) VIN = VCC or GND VI (OE) = VIL, V IH VI = VCC, GND VO = VCC, GND 3.3 3.3 3.3 3.3 0.4 −0.4 1.7 1.7 0.8 −0.8 2.0 0.8 V V V V (Note 6)(Note 7) (Note 6)(Note 7) (Note 6)(Note 8) (Note 6)(Note 8) Units Conditions Note 3: All outputs loaded thresholds on input associated with output under test. Note 4: Maximum test duration 2.0 ms, one output loaded at a time. Note 5: Incident wave switching on transmission lines with impedances as low as 75Ω for commercial temperature range is guaranteed for 74LVQ. Note 6: Worst case package. Note 7: Max number of outputs defined as (n). Data inputs are driven 0V to 3.3V; one output at GND. Note 8: Max number of Data Inputs (n) switching. (n − 1) inputs switching 0V to 3.3V. Input-under-test switching: 3.3V to threshold (VILD), 0V to threshold (VIHD), f = 1 M Hz. www.fairchildsemi.com 2 74LVQ244 AC Electrical Characteristics TA = +25°C Symbol Parameter VCC (V) tPHL tPLH tPZL tPZH tPHZ tPLZ tOSHL tOSLH Output to Output Skew Data to Output (Note 9) Output Disable Time Propagation Delay Data to Output Output Enable Time 2.7 3.3 ± 0.3 2.7 3.3 ± 0.3 2.7 3.3 ± 0.3 2.7 3.3 ± 0.3 Min 2.0 2.0 2.5 2.5 1.0 1.0 CL = 50 pF Typ 8.4 7.0 9.6 8.0 10.8 9.0 1.0 1.0 Max 12.7 9.0 16.9 12.0 19.0 13.5 1.5 1.5 TA = −40°C to +85°C CL = 50 pF Min 2.0 2.0 2.5 2.5 1.0 1.0 Max 14.0 9.5 18.0 12.5 20.0 14.0 1.5 1.5 ns ns ns ns Units Note 9: 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. Capacitance Symbol CIN CPD (Note 10) Parameter Input Capacitance Power Dissipation Capacitance Typ 4.5 70 Units pF pF VCC = Open VCC = 3.3V Conditions Note 10: CPD is measured at 10 MHz. 3 www.fairchildsemi.com 74LVQ244 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 74LVQ244 Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide Package Number M20D 5 www.fairchildsemi.com 74LVQ244 Low Voltage Octal Buffer/Line Driver with 3-STATE Outputs Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 20-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150" Wide Package Number MQA20 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: 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 6 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. www.fairchildsemi.com