74LCX2244WM

74LCX2244 Low Voltage Buffer/Line Driver with 5V Tolerant Inputs and Outputs with 26Ω Series Resistors in the Outputs October 1995 Revised May 2003 74LCX2244 Low Voltage Buffer/Line Driver with 5V Tolerant Inputs and Outputs with 26Ω Series Resistors in the Outputs General Description The LCX2244 contains eight non-inverting buffers with 3-STATE outputs. The device may be employed as a memory address driver, clock driver and bus-oriented transmitter/receiver. The LCX2244 is designed for low voltage (2.5V or 3.3V) VCC applications with capability of interfacing to a 5V signal environment. The 26Ω series resistors help reduce output overshoot and undershoot. The LCX2244 is fabricated with an advanced CMOS technology to achieve high speed operation while maintaining CMOS low power dissipation. Features s 5V tolerant inputs and outputs s 2.3V to 3.6V VCC specifications provided s 7.5 ns tPD max (VCC = 3.3V) 10 µA ICC max s Power down high impedance inputs and outputs s 26Ω-series resistors in the outputs s Supports live insertion/withdrawal (Note 1) s ±12 mA output drive (VCC = 3.0V) s Implements patented noise/EMI reduction circuitry s Latch-up performance exceeds 500 mA s ESD performance: Human body model > 2000V Machine model > 200V s Leadless DQFN package Note 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 or the resistor is determined by the current-sourcing capability of the driver. Ordering Code: Order Number 74LCX2244WM 74LCX2244SJ 74LCX2244BQ (Preliminary) 74LCX2244MSA 74LCX2244MTC Package Number M20B M20D MLP020B (Preliminary) MSA20 MTC20 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-Terminal Depopulated Quad Very-Thin Flat Pack No Leads (DQFN), JEDEC MO-241, 2.5 x 4.5mm 20-Lead Shrink Small Outline Package (SSOP), JEDEC MO-150, 5.3mm Wide 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. © 2003 Fairchild Semiconductor Corporation DS012569 www.fairchildsemi.com 74LCX2244 Logic Symbol IEEE/IEC Pin Descriptions Pin Names OE1, OE2 I0–I7 O0–O7 Description 3-STATE Output Enable Inputs Inputs Outputs Truth Tables Inputs OE1 L L In L H X Outputs (Pins 12, 14, 16, 18) L H Z Connection Diagrams Pin Assignments for SOIC, SOP, SSOP, and TSSOP H Inputs OE2 L L H H = H IGH Voltage Level X = Immaterial L = LOW Voltage Level Z = High Impedance Outputs In H H X (Pins 3, 5, 7, 9) L H Z Pad Assignment for DQFN (Top Through View) www.fairchildsemi.com 2 74LCX2244 Absolute Maximum Ratings(Note 2) Symbol VCC VI VO IIK IOK IO ICC IGND TSTG Parameter Supply Voltage DC Input Voltage DC Output Voltage DC Input Diode Current DC Output Diode Current DC Output Source/Sink Current DC Supply Current per Supply Pin DC Ground Current per Ground Pin Storage Temperature Value Conditions Units V V Output in 3-STATE Output in HIGH or LOW State (Note 3) VI < GND VO < GND VO > VCC V mA mA mA mA mA −0.5 to +7.0 −0.5 to +7.0 −0.5 to +7.0 −0.5 to VCC + 0.5 −50 −50 +50 ±50 ±100 ±100 −65 to +150 °C Recommended Operating Conditions (Note 4) Symbol VCC VI VO IOH/IOL Supply Voltage Input Voltage Output Voltage Output Current HIGH or LOW State 3-STATE VCC = 3.0V − 3.6V VCC = 2.7V − 3.0V VCC = 2.3V − 2.7V TA Free-Air Operating Temperature Input Edge Rate, VIN = 0.8V − 2.0V, VCC = 3.0V Parameter Operating Data Retention Min 2.0 1.5 0.0 0.0 0.0 Max 3.6 3.6 5.5 VCC 5.5 Units V V V ±12.0 ±8.0 ±4.0 −40.0 0.0 85.0 10.0 mA °C ns/V ∆t/∆V Note 2: 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 3: IO Absolute Maximum Rating must be observed. Note 4: U nused inputs must be held HIGH or LOW. They may not float. DC Electrical Characteristics Symbol VIH VIL VOH Parameter HIGH Level Input Voltage LOW Level Input Voltage HIGH Level Output Voltage IOH = −100 µA IOH = −4 mA IOH = −4 mA IOH = −6 mA IOH = − 8mA IOH = −12 mA VOL LOW Level Output Voltage IOL = 100 µA IOL = 4 mA IOL = 4 mA IOL = 6 mA IOL = 8 mA IOL = 12 mA II IOZ Input Leakage Current 3-STATE Output Leakage 0 ≤ VI ≤ 5.5V 0 ≤ VO ≤ 5.5V VI = V IH or VIL Conditions VCC (V) 2.3 − 2.7 2.7 − 3.6 2.3 − 2.7 2.7 − 3.6 2.3 − 3.6 2.3 2.7 3.0 2.7 3.0 2.3 − 3.6 2.3 2.7 3.0 2.7 3.0 2.3 − 3.6 2.3 − 3.6 VCC − 0.2 1.8 2.2 2.4 2.0 2.0 0.2 0.6 0.4 0.55 0.6 0.8 ±5.0 ±5.0 µA µA V V TA = −40°C to +85°C Min 1.7 2.0 0.7 0.8 Max Units V V 3 www.fairchildsemi.com 74LCX2244 DC Electrical Characteristics Symbol IOFF ICC ∆ICC Parameter Power-Off Leakage Current Quiescent Supply Current Increase in ICC per Input (Continued) VCC (V) 0.0 2.3 − 3.6 2.3 − 3.6 2.3 − 3.6 TA = −40°C to +85°C Min Max 10.0 10.0 ±10.0 500 µA µA µA Conditions VI or VO = 5.5V VI = VCC or GND 3.6V ≤ VI, VO ≤ 5.5V (Note 5) VIH = VCC − 0.6V Units Note 5: Outputs disabled or 3-STATE only. AC Electrical Characteristics TA = −40°C to +85°C, RL = 500Ω Symbol Parameter VCC = 3.3V ± 0.3V CL = 50pF Min tPHL tPLH tPZL tPZH tPLZ tPHZ tOSHL tOSLH Output to Output Skew (Note 6) Output Disable Time Propagation Delay Data to Output Output Enable Time 1.5 1.5 1.5 1.5 1.5 1.5 Max 7.5 7.5 9.0 9.0 7.0 7.0 1.0 1.0 VCC = 2.7V CL = 50pF Min 1.5 1.5 1.5 1.5 1.5 1.5 Max 8.5 8.5 10.0 10.0 8.0 8.0 VCC = 2.5 ± 0.2V CL = 30pF Min 1.5 1.5 1.5 1.5 1.5 1.5 Max 9.0 9.0 10.5 10.5 8.4 8.4 ns ns ns ns Units Note 6: 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). Dynamic Switching Characteristics Symbol VOLP VOLV Parameter Quiet Output Dynamic Peak VOL Quiet Output Dynamic Valley VOL Conditions CL = 50 pF, VIH = 3.3V, VIL = 0V CL = 30 pF, VIH = 2.5V, VIL = 0V CL = 50 pF, VIH = 3.3V, VIL = 0V CL = 30 pF, VIH = 2.5V, VIL = 0V VCC (V) 3.3 2.5 3.3 2.5 TA = 25°C Typical 0.35 0.25 −0.35 −0.25 V V Units Capacitance Symbol CIN COUT CPD Input Capacitance Output Capacitance Power Dissipation Capacitance Parameter Conditions VCC = Open, VI = 0V or VCC VCC = 3.3V, VI = 0V or VCC VCC = 3.3V, VI = 0V or VCC, f = 10 MHz Typical 7.0 8.0 25.0 Units pF pF pF www.fairchildsemi.com 4 74LCX2244 AC LOADING and WAVEFORMS Generic for LCX Family FIGURE 1. AC Test Circuit (CL includes probe and jig capacitance) Test tPLH, tPHL tPZL, tPLZ tPZH,tPHZ Switch Open 6V at VCC = 3.3 ± 0.3V VCC x 2 at VCC = 2.5 ± 0.2V GND Waveform for Inverting and Non-Inverting Functions 3-STATE Output High Enable and Disable Times for Logic Propagation Delay. Pulse Width and trec Waveforms Setup Time, Hold Time and Recovery Time for Logic 3-STATE Output Low Enable and Disable Times for Logic FIGURE 2. Waveforms (Input Characteristics; f =1MHz, tr = tf = 3ns) Symbol Vmi Vmo Vx Vy VCC 3.3V ± 0.3V 1.5V 1.5V VOL + 0.3V VOH − 0.3V 2.7V 1.5V 1.5V VOL + 0.3V VOH − 0.3V trise and tfall 2.5V ± 0.2V VCC/2 VCC/2 VOL + 0.15V VOH − 0.15V 5 www.fairchildsemi.com 74LCX2244 Schematic Diagram Generic for LCX Family www.fairchildsemi.com 6 74LCX2244 Physical Dimensions inches (millimeters) unless otherwise noted 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide Package Number M20B 7 www.fairchildsemi.com 74LCX2244 Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide Package Number M20D www.fairchildsemi.com 8 74LCX2244 Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 20-Terminal Depopulated Quad Very-Thin Flat Pack No Leads (DQFN), JEDEC MO-241, 2.5 x 4.5mm Package Number MLP020B (Preliminary) 9 www.fairchildsemi.com 74LCX2244 Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 20-Lead Shrink Small Outline Package (SSOP), JEDEC MO-150, 5.3mm Wide Package Number MSA20 www.fairchildsemi.com 10 74LCX2244 Low Voltage Buffer/Line Driver with 5V Tolerant Inputs and Outputs with 26Ω Series Resistors in the 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: 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. 11 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 www.fairchildsemi.com