74VCX38 Low Voltage Quad 2-Input NAND Gate with Open Drain Outputs and 3.6V Tolerant Inputs and Outputs
July 1999
Revised February 2005
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
(1.2V to 3.6V) V
CC
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
1.2V to 3.6V V
CC
supply operation
s
3.6V tolerant inputs and outputs
s
t
PD
2.8 ns max for 3.0V to 3.6V V
CC
s
Power-Off high impedance inputs and outputs
s
Static Drive (I
OL
)
24 mA @ 3.0V V
CC
s
Uses patented Quiet Series
¥
noise/EMI reduction
circuitry
s
Latchup performance exceeds JEDEC 78 conditions
s
ESD performance:
Human body model
!
2000V
Machine model
!
250V
s
Leadless Pb-Free DQFN package
Ordering Code:
Order Number
74VCX38M
74VCX38BQX
(Note 1)
74VCX38MTC
74VCX38MTCX_NL
Package
Number
M14A
MLP014A
MTC14
MTC14
Package Description
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
Pb-Free 14-Terminal Depopulated Quad Very-Thin Flat Pack No Leads (DQFN), JEDEC
MO-241, 2.5 x 3.0mm
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:
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
Logic Symbol
IEEE/IEC
Connection Diagrams
Pin Assignments for SOIC and TSSOP
Pin Descriptions
Pin Names
A
n
, B
n
O
n
Description
Inputs
Outputs
Pad Assignments for DQFN
(Top View)
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2
74VCX38
Absolute Maximum Ratings
(Note 2)
Supply Voltage (V
CC
)
DC Input Voltage (V
I
)
Output Voltage (V
O
) (Note 3)
DC Input Diode Current (I
IK
)
V
I
0V
DC Output Diode Current (I
OK
)
V
O
0V
DC Output Source/Sink Current (I
OL
)
DC V
CC
or Ground Current per
Supply Pin (I
CC
or Ground)
Storage Temperature Range (T
stg
)
0.5V to
4.6V
0.5V to
4.6V
0.5V to
4.6V
50 mA
50 mA
50 mA
r
100 mA
65
q
C to
150
q
C
Recommended Operating
Conditions
(Note 4)
Power Supply
Operating
Input Voltage
Output Voltage (V
O
)
Output Current in I
OL
V
CC
V
CC
V
CC
V
CC
V
CC
3.0V to 3.6V
2.3V to 2.7V
1.65V to 2.3V
1.4V to 1.6V
1.2V
1.2V to 3.6V
0.3V to 3.6V
0V to 3.6V
Free Air Operating Temperature (T
A
)
Minimum Input Edge Rate (
'
t/
'
V)
V
in
0.8V to 2.0V, V
CC
3.0V
24 mA
18 mA
6 mA
2 mA
r
100
P
A
40
q
C to
85
q
C
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 Rat-
ings. The “Recommended Operating Conditions” table will define the condi-
tions for actual device operation.
Note 3:
I
O
Absolute Maximum Rating must be observed.
Note 4:
Floating or unused inputs must be held HIGH or LOW
DC Electrical Characteristics
Symbol
V
IH
Parameter
HIGH Level Input Voltage
Conditions
V
CC
(V)
2.7 - 3.6
2.3 - 2.7
1.65 - 2.3
1.4 - 1.6
1.2
V
IL
LOW Level Input Voltage
2.7 - 3.6
2.3 - 2.7
1.65 - 2.3
1.4 - 1.6
1.2
V
OL
LOW Level Output Voltage
I
OL
I
OL
I
OL
I
OL
I
OL
I
OL
I
OL
I
OL
I
OL
I
OL
I
OL
I
OL
I
I
I
OFF
I
CC
Input Leakage Current
Power-Off Leakage Current
Quiescent Supply Current
Increase in I
CC
per Input
Off State Current
100
P
A
12 mA
18 mA
24 mA
100
P
A
12 mA
18 mA
100
P
A
6 mA
100
P
A
2 mA
100
P
A
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
1.2
1.2 - 3.6
0
1.2 - 3.6
1.2 - 3.6
2.7 - 3.6
1.2 - 3.6
Min
2.0
1.6
0.65
u
V
CC
0.65
u
V
CC
0.65
u
V
CC
0.8
0.7
0.35
u
V
CC
0.35
u
V
CC
0.05
u
V
CC
0.2
0.4
0.4
0.55
0.2
0.4
0.6
0.2
0.3
0.2
0.35
0.05
V
V
V
Max
Units
0
d
V
I
d
3.6V
0
d
(V
I
, V
O
)
d
3.6V
V
I
V
IH
V
O
V
CC
or GND
V
CC
0.6V
3.6
V
CC
d
(V
I
)
d
3.6V
r
5.0
10.0
20.0
P
A
P
A
P
A
P
A
P
A
r
20.0
750
10.0
'
I
CC
I
OHZ
3
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74VCX38
AC Electrical Characteristics
Symbol
t
PZL
,
t
PLZ
C
L
t
OSHL
t
OSLH
Output to Output Skew
(Note 6)
C
L
Note 5:
For C
L
(Note 5)
Conditions
V
CC
(V)
3.3
r
0.3
2.5
r
0.2
1.8
r
0.15
T
A
Parameter
Propagation Delay
C
L
40
q
C to
85
q
C
Max
2.8
3.7
6.7
13.4
33.5
0.5
0.5
0.75
1.5
1.5
0.6
0.8
1.0
1.0
Min
Units
Figure
Number
Figures
1, 2
30 pF, R
L
500
:
ns
Figures
3, 4
15 pF, R
L
30 pF, R
L
2k
:
500
:
1.5
r
0.1
1.2
3.3
r
0.3
2.5
r
0.2
1.8
r
0.15
C
L
ns
15 pF, R
L
2k
:
1.5
r
0.1
1.2
50
P
F, 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 (t
OSHL
) or LOW-to-HIGH (t
OSLH
).
Dynamic Switching Characteristics
Symbol
V
OLP
Parameter
Quiet Output Dynamic Peak V
OL
C
L
30 pF, V
IH
Conditions
V
CC
, V
IL
0V
V
CC
(V)
1.8
2.5
3.3
V
OLV
Quiet Output Dynamic Valley V
OL
C
L
30 pF, V
IH
V
CC
, V
IL
0V
1.8
2.5
3.3
T
A
25
q
C
0.25
0.6
0.8
Units
Typical
V
0.25
0.6
0.8
V
Capacitance
Symbol
C
IN
C
OUT
C
PD
Input Capacitance
Output Capacitance
Power Dissipation Capacitance
Parameter
V
I
V
I
V
I
Conditions
0v OR V
CC
, V
CC
0V or V
CC
, V
CC
0V or V
CC
, f
1.8V, 2.5V or 3.3V
1.8V, 2.5V or 3.3V
1.8V, 2.5V or 3.3V
T
A
25
q
C
Typical
6.0
7.0
20.0
pF
pF
pF
Units
10 MHz, V
CC
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4
74VCX38
AC Loading and Waveforms (V
CC
3.3V
r
0.3V to 1.8V
r
0.15V)
TEST
t
PZL
, t
PLZ
SWITCH
6V at V
CC
V
CC
u
2 at V
CC
FIGURE 1. AC Test Circuit
3.3
r
0.3V;
2.5V
r
0.2V; 1.8V
FIGURE 2. Waveform for Open Drain, Inverting and Non-inverting Functions
Symbol
V
mi
V
mo
V
x
V
CC
3.3V
r
0.3V
1.5V
1.5V
V
OL
0.3V
2.5V
r
0.2V
V
CC
/2
V
CC
/2
V
OL
0.15V
1.8V
r
0.15V
V
CC
/2
V
CC
/2
V
OL
0.15V
5
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