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CD4093BC Quad 2-Input NAND Schmitt Trigger
October 1987
Revised April 2002
CD4093BC
Quad 2-Input NAND Schmitt Trigger
General Description
The CD4093B consists of four Schmitt-trigger circuits.
Each circuit functions as a 2-input NAND gate with Schmitt-
trigger action on both inputs. The gate switches at different
points for positive and negative-going signals. The differ-
ence between the positive (V
T
+
) and the negative voltage
(V
T
−
) is defined as hysteresis voltage (V
H
).
All outputs have equal source and sink currents and con-
form to standard B-series output drive (see Static Electrical
Characteristics).
Features
s
Wide supply voltage range: 3.0V to 15V
s
Schmitt-trigger on each input
with no external components
s
Noise immunity greater than 50%
s
Equal source and sink currents
s
No limit on input rise and fall time
s
Standard B-series output drive
s
Hysteresis voltage (any input) T
A
=
25
°
C
Typical
V
DD
=
5.0V V
H
=
1.5V
V
DD
=
10V V
H
=
2.2V
V
DD
=
15V V
H
=
2.7V
Guaranteed
V
H
=
0.1 V
DD
Applications
• Wave and pulse shapers
• High-noise-environment systems
• Monostable multivibrators
• Astable multivibrators
• NAND logic
Ordering Code:
Order Number
CD4093BCM
CD4093BCN
Package Number
M14A
N14A
Package Description
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Top View
© 2002 Fairchild Semiconductor Corporation
DS005982
www.fairchildsemi.com
CD4093BC
Absolute Maximum Ratings
(Note 1)
(Note 2)
DC Supply Voltage (V
DD
)
Input Voltage (V
IN
)
Storage Temperature Range (T
S
)
Power Dissipation (P
D
)
Dual-In-Line
Small Outline
Lead Temperature (T
L
)
(Soldering, 10 seconds)
260
°
C
(Note 2)
700 mW
500 mW
Recommended Operating
Conditions
(Note 2)
DC Supply Voltage (V
DD
)
Input Voltage (V
IN
)
Operating Temperature Range (T
A
)
3 to 15 V
DC
0 to V
DD
V
DC
−
0.5 to
+
18 V
DC
−
0.5 to V
DD
+
0.5 V
DC
−
65
°
C to
+
150
°
C
−
55
°
C to
+
125
°
C
Note 1:
“Absolute Maximum Ratings” are those values beyond which the
safety of the device cannot be guaranteed; they are not meant to imply that
the devices should be operated at these limits. The table of “Recom-
mended Operating Conditions” and “Electrical Characteristics” provides
conditions for actual device operation.
Note 2:
V
SS
=
0V unless otherwise specified.
DC Electrical Characteristics
Symbol
I
DD
Parameter
Quiescent Device
Current
V
OL
LOW Level
Output Voltage
V
DD
=
5V
V
DD
=
10V
V
DD
=
15V
Conditions
−55°C
Min
Max
0.25
0.5
1.0
0.05
0.05
0.05
4.95
9.95
14.95
1.3
2.85
4.35
2.75
5.5
8.25
0.5
1.0
1.5
0.64
1.6
4.2
−0.64
−1.6
−4.2
−0.1
0.1
2.25
4.5
6.75
3.6
7.15
10.65
2.35
4.3
6.3
4.95
9.95
14.95
1.5
3.0
4.5
2.75
5.5
8.25
0.5
1.0
1.5
0.51
1.3
3.4
0.51
−1.3
−3.4
Min
+25°C
Typ
Max
0.25
0.5
1.0
0
0
0
5
10
15
1.8
4.1
6.3
3.3
6.2
9.0
1.5
2.2
2.7
0.88
2.25
8.8
−0.88
−2.25
−8.8
−10
−
5
10
−
5
−0.1
0.1
2.25
4.5
6.75
3.5
7.0
10.5
2.0
4.0
6.0
0.05
0.05
0.05
+125°C
Min
Max
7.5
15.0
30.0
0.05
0.05
0.05
4.95
9.95
14.95
1.5
3.0
4.5
2.65
5.35
8.1
0.35
0.70
1.20
0.36
0.9
2.4
−0.36
−0.9
−2.4
−1.0
1.0
2.3
4.65
6.9
3.5
7.0
10.5
2.0
4.0
6.0
Units
µA
V
IN
=
V
DD,
|I
O
|
<
1
µA
V
DD
=
5V
V
DD
=
10V
V
DD
=
15V
V
V
OH
HIGH Level
Output Voltage
V
IN
=
V
SS
, |I
O
|
<
1
µA
V
DD
=
5V
V
DD
=
10V
V
DD
=
15V
V
V
T
−
Negative-Going Threshold
Voltage (Any Input)
|I
O
|
<
1
µA
V
DD
=
5V, V
O
=
4.5V
V
DD
=
10V, V
O
=
9V
V
DD
=
15V, V
O
=
13.5V
V
V
T
+
Positive-Going Threshold
Voltage (Any Input)
|I
O
|
<
1
µA
V
DD
=
5V, V
O
=
0.5V
V
DD
=
10V, V
O
=
1V
V
DD
=
15V, V
O
=
1.5V
V
V
H
Hysteresis (V
T
+ −
V
T
−)
(Any Input)
V
DD
=
5V
V
DD
=
10V
V
DD
=
15V
V
IN
=
V
DD
V
DD
=
5V, V
O
=
0.4V
V
DD
=
10V, V
O
=
0.5V
V
DD
=
15V, V
O
=
1.5V
V
I
OL
LOW Level Output
Current (Note 3)
mA
I
OH
HIGH Level Output
Current (Note 3)
V
IN
=
V
SS
V
DD
=
5V, V
O
=
4.6V
V
DD
=
10V, V
O
=
9.5V
V
DD
=
15V, V
O
=
13.5V
mA
I
IN
Input Current
V
DD
=
15V, V
IN
=
0V
V
DD
=
15V, V
IN
=
15V
µA
Note 3:
I
OH
and I
OL
are tested one output at a time.
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2
CD4093BC
AC Electrical Characteristics
Symbol
t
PHL
, t
PLH
Parameter
Propagation Delay Time
(Note 4)
Conditions
Min
Typ
300
120
80
90
50
40
(Any Input)
(Per Gate)
5.0
24
Max
450
210
160
145
75
60
7.5
pF
pF
ns
ns
Units
T
A
=
25
°
C, C
L
=
50 pF, R
L
=
200k, Input t
r
, t
f
=
20 ns, unless otherwise specified
V
DD
=
5V
V
DD
=
10V
V
DD
=
15V
t
THL
, t
TLH
Transition Time
V
DD
=
5V
V
DD
=
10V
V
DD
=
15V
C
IN
C
PD
Input Capacitance
Power Dissipation Capacitance
Note 4:
AC Parameters are guaranteed by DC correlated testing.
3
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CD4093BC
Typical Applications
Gated Oscillator
Assume t
1
+
t
2
>>
t
PHL
+
t
PLH
then:
t
0
=
RC
ln
[V
DD
/V
T
−]
t
1
=
RC
ln
[(V
DD
−
V
T
−)/(V
DD
−
V
T
+)]
t
2
=
RC
ln
[V
T
+
/V
T
−
]
Gated One-Shot
(a) Negative-Edge Triggered
(b) Positive-Edge Triggered
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4
