Semiconductor Components Industries, LLC, 2000
March, 2000 – Rev. 8
1 Publication Order Number:
MC74HC14A/D
MC74HC14A
Hex Schmitt-Trigger
Inverter
High–Performance Silicon–Gate CMOS
The MC74HC14A is identical in pinout to the LS14, LS04 and the
HC04. The device inputs are compatible with Standard CMOS
outputs; with pullup resistors, they are compatible with LSTTL
outputs.
The HC14A is useful to “square up” slow input rise and fall times.
Due to hysteresis voltage of the Schmitt trigger, the HC14A finds
applications in noisy environments.
• Output Drive Capability: 10 LSTTL Loads
• Outputs Directly Interface to CMOS, NMOS and TTL
• Operating Voltage Range: 2 to 6V
• Low Input Current: 1µA
• High Noise Immunity Characteristic of CMOS Devices
• In Compliance With the JEDEC Standard No. 7A Requirements
• Chip Complexity: 60 FETs or 15 Equivalent Gates
LOGIC DIAGRAM
Y1A1
A2
A3
A4
A5
A6
Y2
Y3
Y4
Y5
Y6
1
3
5
9
11
13
2
4
6
8
10
12
Y = A
Pin 14 = V
CC
Pin 7 = GND
Pinout: 14–Lead Packages (Top View)
1314 12 11 10 9 8
21 34567
V
CC
A6 Y6 A5 Y5 A4 Y4
A1 Y1 A2 Y2 A3 Y3 GND
Device Package Shipping
ORDERING INFORMATION
MC74HC14AN PDIP–14 2000 / Box
MC74HC14AD SOIC–14
http://onsemi.com
55 / Rail
MC74HC14ADR2 SOIC–14 2500 / Reel
MARKING
DIAGRAMS
A = Assembly Location
WL or L = Wafer Lot
YY or Y = Year
WW or W = Work Week
MC74HC14ADT TSSOP–14 96 / Rail
MC74HC14ADTR2 TSSOP–14
2500 / Reel
TSSOP–14
DT SUFFIX
CASE 948G
HC
14A
ALYW
1
14
1
14
PDIP–14
N SUFFIX
CASE 646
MC74HC14AN
AWLYYWW
SOIC–14
D SUFFIX
CASE 751A
1
14
HC14A
AWLYWW
L
H
FUNCTION TABLE
Inputs Outputs
A
H
L
Y
MC74HC14A
http://onsemi.com
2
DC Supply Voltage (Referenced to GND)
DC Input Voltage (Referenced to GND)
DC Output Voltage (Referenced to GND)
DC Input Current, per Pin
DC Output Current, per Pin
DC Supply Current, VCC and GND Pins
Power Dissipation in Still Air, Plastic DIP†
SOIC Package†
TSSOP Package†
Storage Temperature Range
Lead Temperature, 1 mm from Case for 10 Seconds
Plastic DIP, SOIC or TSSOP Package
_
C
*Maximum Ratings are those values beyond which damage to the device may occur.
Functional operation should be restricted to the Recommended Operating Conditions.
†Derating — Plastic DIP: – 10 mW/_C from 65_ to 125_C
SOIC Package: – 7 mW/_C from 65_ to 125_C
TSSOP Package: – 6.1 mW/_C from 65_ to 125_C
For high frequency or heavy load considerations, see Chapter 2 of the ON Semiconductor High–Speed CMOS Data Book (DL129/D).
RECOMMENDED OPERATING CONDITIONS
DC Supply Voltage (Referenced to GND)
DC Input Voltage, Output Voltage (Referenced to
GND)
Operating Temperature Range, All Package Types
Input Rise/Fall Time VCC = 2.0 V
(Figure 1) VCC = 4.5 V
VCC = 6.0 V
No Limit*
No Limit*
No Limit*
ns
*When Vin = 50% VCC, ICC > 1mA
This device contains protection
circuitry to guard against damage
due to high static voltages or electric
fields. However, precautions must
be taken to avoid applications of any
voltage higher than maximum rated
voltages to this high–impedance circuit. For proper operation, Vin and
V
out
should be constrained to the
range GND v (Vin or V
out
) v VCC.
Unused inputs must always be
tied to an appropriate logic voltage
level (e.g., either GND or VCC).
Unused outputs must be left open.
MC74HC14A
http://onsemi.com
3
DC CHARACTERISTICS (Voltages Referenced to GND)
Guaranteed Limit
Symbol Parameter Condition
V
–55 to 25°C ≤85°C ≤125°C Unit
VT+ max Maximum Positive–Going Input
Threshold Voltage
(Figure 3)
V
out
= 0.1V
|I
out
| ≤ 20µA
2.0
3.0
4.5
6.0
1.50
2.15
3.15
4.20
1.50
2.15
3.15
4.20
1.50
2.15
3.15
4.20
V
VT+ min Minimum Positive–Going Input
Threshold Voltage
(Figure 3)
V
out
= 0.1V
|I
out
| ≤ 20µA
2.0
3.0
4.5
6.0
1.0
1.5
2.3
3.0
0.95
1.45
2.25
2.95
0.95
1.45
2.25
2.95
V
VT– max Maximum Negative–Going Input
Threshold Voltage
(Figure 3)
V
out
= VCC – 0.1V
|I
out
| ≤ 20µA
2.0
3.0
4.5
6.0
0.9
1.4
2.0
2.6
0.95
1.45
2.05
2.65
0.95
1.45
2.05
2.65
V
VT– min Minimum Negative–Going Input
Threshold Voltage
(Figure 3)
V
out
= VCC – 0.1V
|I
out
| ≤ 20µA
2.0
3.0
4.5
6.0
0.3
0.5
0.9
1.2
0.3
0.5
0.9
1.2
0.3
0.5
0.9
1.2
V
VHmax
Note 2
Maximum Hysteresis Voltage
(Figure 3)
V
out
= 0.1V or VCC – 0.1V
|I
out
| ≤ 20µA
2.0
3.0
4.5
6.0
1.20
1.65
2.25
3.00
1.20
1.65
2.25
3.00
1.20
1.65
2.25
3.00
V
VHmin
Note 2
Minimum Hysteresis Voltage
(Figure 3)
V
out
= 0.1V or VCC – 0.1V
|I
out
| ≤ 20µA
2.0
3.0
4.5
6.0
0.20
0.25
0.40
0.50
0.20
0.25
0.40
0.50
0.20
0.25
0.40
0.50
V
V
OH
Minimum High–Level Output
Voltage
Vin ≤ VT– min
|I
out
| ≤ 20µA
2.0
4.5
6.0
1.9
4.4
5.9
1.9
4.4
5.9
1.9
4.4
5.9
V
Vin ≤ VT– min |I
out
| ≤ 2.4mA
|I
out
| ≤ 4.0mA
|I
out
| ≤ 5.2mA
3.0
4.5
6.0
2.48
3.98
5.48
2.34
3.84
5.34
2.20
3.70
5.20
V
OL
Maximum Low–Level Output
Voltage
Vin ≥ VT+ max
|I
out
| ≤ 20µA
2.0
4.5
6.0
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
V
Vin ≥ VT+ max |I
out
| ≤ 2.4mA
|I
out
| ≤ 4.0mA
|I
out
| ≤ 5.2mA
3.0
4.5
6.0
0.26
0.26
0.26
0.33
0.33
0.33
0.40
0.40
0.40
I
in
Maximum Input Leakage
Current
Vin = VCC or GND 6.0 ±0.1 ±1.0 ±1.0 µA
I
CC
Maximum Quiescent Supply
Current (per Package)
Vin = VCC or GND
I
out
= 0µA
6.0 1.0 10 40 µA
1. Information on typical parametric values along with frequency or heavy load considerations can be found in Chapter 2 of the ON
Semiconductor High–Speed CMOS Data Book (DL129/D).
2. VHmin > (VT+ min) – (VT– max); VHmax = (VT+ max) – (VT– min).