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| 74LCX38 Low Voltage Quad 2-Input NAND Gate (Open Drain) with 5V Tolerant Inputs October 1995 Revised February 2005 74LCX38 Low Voltage Quad 2-Input NAND Gate (Open Drain) with 5V Tolerant Inputs General Description The LCX38 contains four 2-input open drain NAND gates. The inputs tolerate voltages up to 7V allowing the interface of 5V systems to 3V systems. The 74LCX38 is fabricated with advanced CMOS technology to achieve high speed operation while maintaining CMOS low power dissipation. Features s 5V tolerant inputs s 2.3V to 3.6V VCC specifications provided s 5.0 ns tPD max (VCC 3.3V), 10 PA ICC max 3.0V) s Power down high impedance inputs and outputs s 24 mA output drive (VCC s Implements patented noise/EMI reduction circuitry s Latch-up performance exceeds 500 mA s ESD performance: Human body model ! 2000V Machine model ! 150V Ordering Code: Order Number 74LCX38M 74LCX38MX_NL (Note 1) 74LCX38SJ 74LCX38MTC 74LCX38MTCX_NL (Note 1) Package Number M14A M14A M14D MTC14 MTC14 Package Description 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow Pb-Free 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow Pb-Free 14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Pb-Free 14-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 JEDEC J-STD-020B. Note 1: "_NL" indicates Pb-Free package (per JEDEC J-STD-020B). Device available in Tape and Reel only. Logic Symbol IEEE/IEC Connection Diagram Pin Descriptions Pin Names An , Bn On (c) 2005 Fairchild Semiconductor Corporation DS012574 Description Inputs Outputs www.fairchildsemi.com 74LCX38 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 Sink Current (IOL) DC Supply Current per Supply Pin DC Ground Current per Ground Pin Storage Temperature Value Conditions Units V V Output in HIGH or LOW State (Note 3) VI GND VO GND V mA mA mA mA mA 0.5 to 7.0 0.5 to 7.0 0.5 to 7.0 50 50 50 r100 r100 65 to 150 qC Recommended Operating Conditions (Note 4) Symbol VCC VI VO IOL Supply Voltage Input Voltage Output Voltage Output Current VCC VCC VCC TA Free-Air Operating Temperature Input Edge Rate, VIN 0.8V-2.0V, VCC 3.0V 3.0V 3.6V 2.7V 3.0V 2.3V 2.7V Parameter Operating Data Retention Min 2.0 1.5 0 0 Max 3.6 3.6 5.5 5.5 24 12 8 mA Units V V V 40 0 85 10 qC ns/V 't/'V Note 2: The Absolute Maximum Ratings are those beyond which the safety of the device cannot be guaranteed. The device should not be operating 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: Unused inputs must be held HIGH or LOW. They may not float. DC Electrical Characteristics Symbol VIH VIL VOL Parameter HIGH Level Input Voltage LOW Level Input Voltage LOW Level Output Voltage IOL IOL IOL IOL II IOFF ICC Input Leakage Current Power-Off Leakage Current Quiescent Supply Current Increase in ICC per Input Off State Current 100PA 12 mA 16 mA 24 mA 5.5V Conditions VCC (V) 2.3 2.7 2.7 3.6 2.3 2.7 2.3 3.6 2.3 3.6 2.3 2.7 3.0 3.0 2.3 3.6 0 2.3 3.6 2.3 3.6 2.3 3.6 2 - 3.6 IOL = 8mA TA 40qC to 85qC Max Min 1.7 2.0 Units V 0.7 0.8 0.2 0.6 0.4 0.4 0.55 V V 0 d VI d 5.5V VI or VO VI VIH VO VCC or GND VCC 0.6V 5.5 r5.0 10 10 PA PA PA PA PA 3.6V d VI d 5.5V r10 500 10 'ICC IOHZ www.fairchildsemi.com 2 74LCX38 AC Electrical Characteristics TA Symbol Parameter VCC 3.3V r 0.3V 40qC to 85qC, RL VCC CL Min 1.5 1.5 2.7V 50 pF Max 5.5 5.5 500 : VCC CL Min 1.5 1.5 2.5V r 0.2V 30 pF Max 6.5 6.0 ns ns Units CL 50 pF Min tPZL tPLZ tOSHL tOSLH Output to Output Skew (Note 5) Propagation Delay Time 1.5 1.5 Max 5.0 5.0 1.0 1.0 Note 5: 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 CL CL CL CL 50 pF, VIH 30 pF, VIH 50 pF, VIH 30 pF, VIH Conditions 3.3V, VIL 2.5V, VIL 3.3V, VIL 2.5V, VIL 0V 0V 0V 0V VCC (V) 3.3 2.5 3.3 2.5 TA 25qC Typical 0.8 0.6 Units V V 0.8 0.6 Capacitance Symbol CIN COUT CPD Input Capacitance Output Capacitance Power Dissipation Capacitance Parameter VCC VCC VCC Open, VI 3.3V, VI 3.3V, VI Conditions 0V or VCC 0V or VCC 0V or VCC, f 10 MHz Typical 7 8 25 Units pF pF pF 3 www.fairchildsemi.com 74LCX38 AC Loading and Waveforms Generic for LCX Family FIGURE 1. AC Test Circuit (CL includes probe and jig capacitance) Test tPZL, tPLZ Switch 6V at VCC 3.3 r 0.3V VCC x 2 at VCC 2.5 r 0.2V 3-STATE Output Low Enable and Disable Times for Logic trise and tfall FIGURE 2. Waveforms (Input Pulse Characteristics; f = 1MHz, tr = tf = 3ns) Symbol Vmi Vmo Vx Vy VCC 3.3V r 0.3V 1.5V 1.5V VOL 0.3V VOH 0.3V 2.7V 1.5V 1.5V VOL 0.3V VOH 0.3V 2.5V r 0.2V VCC/2 VCC/2 VOL 0.15V VOH 0.15V www.fairchildsemi.com 4 74LCX38 Physical Dimensions inches (millimeters) unless otherwise noted 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow Package Number M14A 5 www.fairchildsemi.com 74LCX38 Physical Dimensions inches (millimeters) unless otherwise noted (Continued) Pb-Free 14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide Package Number M14D www.fairchildsemi.com 6 74LCX38 Low Voltage Quad 2-Input NAND Gate (Open Drain) with 5V Tolerant Inputs Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Package Number MTC14 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. 7 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 |
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