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74VCX38 Low Voltage Quad 2-Input NAND Gate with Open Drain Outputs and 3.6V Tolerant Inputs and Outputs
July 1999 Revised November 2001
74VCX38 Low Voltage Quad 2-Input NAND Gate with Open Drain Outputs and 3.6V Tolerant Inputs and Outputs
General Description
The VCX38 contains four 2-input NAND gates with open drain outputs. This product is designed for low voltage (1.4V to 3.6V) VCC applications with I/O compatibility up to 3.6V. The VCX38 is fabricated with advanced CMOS technology to achieve high-speed operation while maintaining CMOS low power dissipation.
Features
s 1.4V-3.6V VCC supply operation s 3.6V tolerant inputs and outputs s tPD 2.8 ns max for 3.0V to 3.6V VCC s Power-Off high impedance inputs and outputs s Static Drive (IOL)
+24 mA @ 3.0V VCC
s Uses patented Quiet Series noise/EMI reduction circuitry s Latchup performance exceeds 300 mA s ESD performance: Human body model > 2000V Machine model > 250V
Ordering Code:
Order Number 74VCX38M 74VCX38MTC Package Number M14A MTC14 Package Description 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow 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.
Logic Symbol
IEEE/IEC
Connection Diagram
Pin Descriptions
Pin Names An , Bn On Description Inputs Outputs
Quiet Series is a trademark of Fairchild Semiconductor Corporation.
(c) 2001 Fairchild Semiconductor Corporation
ds500161
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74VCX38
Absolute Maximum Ratings(Note 1)
Supply Voltage (VCC ) DC Input Voltage (VI) Output Voltage (VO) (Note 2) DC Input Diode Current (IIK) VI < 0V DC Output Diode Current (IOK) VO < 0V DC Output Source/Sink Current (IOL) DC VCC or Ground Current per Supply Pin (ICC or Ground) Storage Temperature Range (Tstg)
-0.5V to +4.6V -0.5V to +4.6V -0.5V to +4.6V -50 mA -50 mA +50 mA 100 mA -65C to +150C
Recommended Operating Conditions (Note 3)
Power Supply Operating Input Voltage Output Voltage (VO) Output Current in IOL VCC = 3.0V to 3.6V VCC = 2.3V to 2.7V VCC = 1.65V to 2.3V VCC = 1.4V to 1.6V Free Air Operating Temperature (TA) Minimum Input Edge Rate (t/V) Vin = 0.8V to 2.0V, VCC = 3.0V 10 ns/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. Note 2: IO Absolute Maximum Rating must be observed. Note 3: Floating or unused inputs must be held HIGH or LOW
1.4V to 3.6V
-0.3V to 3.6V
0V to 3.6V
+24 mA +18 mA +6 mA +2 mA -40C to +85C
DC Electrical Characteristics
Symbol VIH Parameter HIGH Level Input Voltage Conditions VCC (V) 2.7 - 3.6 2.3 - 2.7 1.65 - 2.3 1.4 - 1.6 VIL LOW Level Input Voltage 2.7 - 3.6 2.3 - 2.7 1.65 - 2.3 1.4 - 1.6 VOL LOW Level Output Voltage IOL = 100 A IOL = 12 mA IOL = 18 mA IOL = 24 mA IOL = 100 A IOL = 12 mA IOL = 18 mA IOL = 100 A IOL = 6 mA IOL = 100 A IOL = 2 mA II IOFF ICC ICC IOHZ Input Leakage Current Power-Off Leakage Current Quiescent Supply Current Increase in ICC per Input Off State Current 0 VI 3.6V 0 (VI, VO) 3.6V VI = VCC or GND VCC (VI) 3.6V VIH = VCC -0.6V VO = 3.6 2.7 - 3.6 2.7 3.0 3.0 2.3 - 2.7 2.3 2.3 1.65 - 2.3 1.65 1.4 - 1.6 1.4 1.4 - 3.6 0 1.4 - 3.6 1.4 - 3.6 2.7 - 3.6 1.4 - 3.6 2.0 1.6 0.65 x VCC 0.65 x VCC 0.8 0.7 0.35 x VCC 0.35 x VCC 0.2 0.4 0.4 0.55 0.2 0.4 0.6 0.2 0.3 0.2 0.35 5.0 10 20 20 750 10 A A A A A V V V Min Max Units
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74VCX38
AC Electrical Characteristics
Symbol tPZL, tPLZ Parameter Propagation Delay
(Note 4)
Conditions VCC (V) 3.3 0.3 2.5 0.2 1.8 0.15 TA = -40C to +85C Min 0.6 0.8 1.0 1.0 Max 2.8 3.7 6.7 13.4 0.5 0.5 0.75 1.5 ns ns Figures 1, 2 Figures 3, 4 Units Figure Number
CL = 30 pF, RL = 500
CL = 15 pF, RL = 2k tOSHL tOSLH Output to Output Skew (Note 5) CL = 15 pF, RL = 2k
Note 4: For CL = 50PF, add approximately 300 ps to the 30 pF AC maximum specification.
1.5 0.1 3.3 0.3 2.5 0.2 1.8 0.15 1.5 0.1
CL = 30 pF, RL = 500
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 Parameter Quiet Output Dynamic Peak VOL Conditions CL = 30 pF, VIH = VCC, VIL = 0V VCC (V) 1.8 2.5 3.3 VOLV Quiet Output Dynamic Valley VOL CL = 30 pF, VIH = VCC, VIL = 0V 1.8 2.5 3.3 TA = +25C Typical 0.25 0.6 0.8 -0.25 -0.6 -0.8 V V Units
Capacitance
Symbol CIN COUT CPD Input Capacitance Output Capacitance Power Dissipation Capacitance Parameter Conditions VI = 0v OR VCC, VCC = 1.8V, 2.5V or 3.3V VI = 0V or VCC, VCC = 1.8V, 2.5V or 3.3V VI = 0V or VCC, f = 10 MHz, VCC = 1.8V, 2.5V or 3.3V TA +25C Typical 6 7 20 Units pF pF pF
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74VCX38
AC Loading and Waveforms (VCC 3.3V 0.3V to 1.8V 0.15V)
FIGURE 1. AC Test Circuit
TEST tPZL, tPLZ SWITCH 6V at VCC = 3.3 0.3V; VCC x 2 at VCC = 2.5V 0.2V; 1.8V
FIGURE 2. Waveform for Open Drain, Inverting and Non-inverting Functions
Symbol Vmi Vmo Vx VCC 3.3V 0.3V 1.5V 1.5V VOL + 0.3V 2.5V 0.2V VCC/2 VCC/2 VOL + 0.15V 1.8V 0.15V VCC/2 VCC/2 VOL + 0.15V
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74VCX38
AC Loading and Waveforms (VCC 1.5 0.1V)
TEST tPZL, tPLZ
SWITCH VCC x 2 at VCC = 1.5V 0.1V FIGURE 3. AC Test Circuit
FIGURE 4. 3-STATE Output Low Enable and Disable Times for Low Voltage Logic
Symbol Vmi Vmo VX VY
VCC 1.5V 0.1V VCC/2 VCC/2 VOL +0.1V VOH -0.1V
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74VCX38
Physical Dimensions inches (millimeters) unless otherwise noted
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow Package Number M14A
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74VCX38 Low Voltage Quad 2-Input NAND Gate with Open Drain Outputs and 3.6V Tolerant Inputs and Outputs
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
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