Revised February 2005
74VCX38
Low Voltage Quad 2-Input NAND Gate with
Open Drain Outputs and
3.6V Tolerant Inputs and Outputs
General Description
Features
The VCX38 contains four 2-input NAND gates with open
drain outputs. This product is designed for low voltage
(1.2V 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.
■ 1.2V to 3.6V VCC supply operation
■ 3.6V tolerant inputs and outputs
■ tPD
2.8 ns max for 3.0V to 3.6V VCC
■ Power-Off high impedance inputs and outputs
■ Static Drive (IOL)
24 mA @ 3.0V VCC
■ Uses patented Quiet Series¥ noise/EMI reduction
circuitry
■ Latchup performance exceeds JEDEC 78 conditions
■ ESD performance:
Human body model ! 2000V
Machine model ! 250V
■ Leadless Pb-Free DQFN package
Ordering Code:
Order Number
74VCX38M
Package
Package Description
Number
M14A
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
74VCX38BQX
(Note 1)
MLP014A
Pb-Free 14-Terminal Depopulated Quad Very-Thin Flat Pack No Leads (DQFN), JEDEC
MO-241, 2.5 x 3.0mm
74VCX38MTC
MTC14
14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
74VCX38MTCX_NL
MTC14
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: DQFN package available in Tape and Reel.
Quiet Series¥ is a trademark of Fairchild Semiconductor Corporation.
© 2005 Fairchild Semiconductor Corporation
DS500161
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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
74VCX38
Connection Diagrams
Logic Symbol
IEEE/IEC
Pin Assignments for SOIC and TSSOP
Pin Descriptions
Pin Names
Pad Assignments for DQFN
Description
An , Bn
Inputs
On
Outputs
(Top View)
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2
Supply Voltage (VCC)
DC Input Voltage (VI)
Output Voltage (VO) (Note 3)
Recommended Operating
Conditions (Note 4)
0.5V to 4.6V
0.5V to 4.6V
0.5V to 4.6V
Power Supply
DC Input Diode Current (IIK)
VI 0V
50 mA
Operating
1.2V to 3.6V
Input Voltage
0.3V to 3.6V
Output Voltage (VO)
DC Output Diode Current (IOK)
0V to 3.6V
Output Current in IOL
VO 0V
50 mA
50 mA
DC Output Source/Sink Current (IOL)
r100 mA
DC VCC or Ground Current per
Supply Pin (ICC or Ground)
Storage Temperature Range (Tstg)
74VCX38
Absolute Maximum Ratings(Note 2)
65qC to 150qC
VCC
3.0V to 3.6V
VCC
2.3V to 2.7V
VCC
1.65V to 2.3V
VCC
1.4V to 1.6V
VCC
1.2V
Free Air Operating Temperature (TA)
24 mA
18 mA
6 mA
2 mA
r100 PA
40qC to 85qC
Minimum Input Edge Rate ('t/'V)
Vin
0.8V to 2.0V, VCC
3.0V
10 ns/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: Floating or unused inputs must be held HIGH or LOW
DC Electrical Characteristics
Symbol
VIH
VIL
VOL
Parameter
Conditions
HIGH Level Input Voltage
(V)
2.7 - 3.6
LOW Level Input Voltage
LOW Level Output Voltage
VCC
Min
1.6
1.65 - 2.3
0.65 u VCC
1.4 - 1.6
0.65 u VCC
1.2
0.65 u VCC
V
0.8
2.3 - 2.7
0.7
1.65 - 2.3
0.35 u V CC
1.4 - 1.6
0.35 u V CC
1.2
0.05 u V CC
IOL
100 PA
2.7 - 3.6
0.2
IOL
12 mA
2.7
0.4
IOL
18 mA
3.0
0.4
IOL
24 mA
3.0
0.55
IOL
100 PA
2.3 - 2.7
0.2
IOL
12 mA
2.3
0.4
IOL
18 mA
2.3
0.6
IOL
100 PA
1.65 - 2.3
0.2
IOL
6 mA
IOL
100 PA
IOL
IOL
V
V
1.65
0.3
1.4 - 1.6
0.2
2 mA
1.4
0.35
100 PA
1.2
0.05
1.2 - 3.6
r5.0
PA
0
10.0
PA
II
Input Leakage Current
0 d VI d 3.6V
IOFF
Power-Off Leakage Current
0 d (VI, VO) d 3.6V
ICC
Quiescent Supply Current
VI
Units
2.0
2.3 - 2.7
2.7 - 3.6
Max
V CC or GND
1.2 - 3.6
20.0
VCC d (VI) d 3.6V
1.2 - 3.6
r20.0
PA
'ICC
Increase in ICC per Input
VIH
VCC 0.6V
2.7 - 3.6
750
PA
IOHZ
Off State Current
VO
3.6
1.2 - 3.6
10.0
PA
3
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74VCX38
AC Electrical Characteristics
Symbol
tPZL,
Parameter
Propagation Delay
(Note 5)
VCC
Conditions
CL
30 pF, RL
tOSHL
Output to Output Skew
tOSLH
(Note 6)
CL
CL
Note 5: For CL
15 pF, RL
30 pF, RL
15 pF, RL
40qC to 85qC
Min
Max
3.3 r 0.3
0.6
2.8
2.5 r 0.2
0.8
3.7
1.8 r 0.15
1.0
6.7
1.5 r 0.1
1.0
13.4
500:
tPLZ
CL
TA
(V)
2k:
500:
1.2
33.5
3.3 r 0.3
0.5
2.5 r 0.2
0.5
1.8 r 0.15
0.75
1.5 r 0.1
1.5
1.2
1.5
2k:
Units
Figure
Number
Figures
1, 2
ns
Figures
3, 4
ns
50PF, add approximately 300 ps to the 30 pF AC maximum specification.
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
VCC
Conditions
CL
CL
30 pF, VIH
30 pF, VIH
VCC, VIL
0V
VCC, VIL
0V
TA
25qC
(V)
Typical
1.8
0.25
2.5
0.6
3.3
0.8
1.8
0.25
2.5
0.6
3.3
0.8
Units
V
V
Capacitance
Symbol
Parameter
TA 25qC
Conditions
Units
Typical
CIN
Input Capacitance
VI
0v OR VCC, VCC
COUT
Output Capacitance
VI
0V or VCC, VCC
CPD
Power Dissipation Capacitance
VI
0V or VCC, f
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4
1.8V, 2.5V or 3.3V
1.8V, 2.5V or 3.3V
10 MHz, VCC
1.8V, 2.5V or 3.3V
6.0
pF
7.0
pF
20.0
pF
74VCX38
AC Loading and Waveforms (VCC 3.3V r 0.3V to 1.8V r 0.15V)
TEST
SWITCH
tPZL, tPLZ
6V at VCC
VCC u 2 at VCC
3.3 r 0.3V;
2.5V r 0.2V; 1.8V
FIGURE 1. AC Test Circuit
FIGURE 2. Waveform for Open Drain, Inverting and Non-inverting Functions
Symbol
VCC
3.3V r 0.3V
2.5V r 0.2V
1.8V r 0.15V
Vmi
1.5V
VCC /2
VCC /2
Vmo
1.5V
VCC /2
VCC /2
Vx
VOL 0.3V
VOL 0.15V
VOL 0.15V
5
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74VCX38
AC Loading and Waveforms (VCC 1.5 r 0.1V to 1.2V)
TEST
SWITCH
tPZL, tPLZ
VCC x 2 at VCC
1.5V r 0.1V
FIGURE 3. AC Test Circuit
FIGURE 4. 3-STATE Output Low Enable and Disable Times for Low Voltage Logic
VCC
Symbol
1.5V r 0.1V
Vmi
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VCC/2
Vmo
VCC/2
VX
VOL 0.1V
VY
VOH 0.1V
6
Tape Format for DQFN
Package
Designator
BQX
Tape
Number
Cavity
Section
Cavities
Status
Cover Tape
Status
Leader (Start End)
125 (typ)
Empty
Sealed
Carrier
2500/3000
Filled
Sealed
Trailer (Hub End)
75 (typ)
Empty
Sealed
TAPE DIMENSIONS inches (millimeters)
REEL DIMENSIONS inches (millimeters)
Tape Size
12 mm
A
B
C
D
N
W1
W2
13.0
0.059
0.512
0.795
7.008
0.488
0.724
(330)
(1.50)
(13.00)
(20.20)
(178)
(12.4)
(18.4)
7
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74VCX38
Tape and Reel Specification
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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8
74VCX38
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
Pb-Free 14-Terminal Depopulated Quad Very-Thin Flat Pack No Leads (DQFN), JEDEC MO-241, 2.5 x 3.0mm
Package Number MLP014A
9
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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:
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.
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.
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10