CD74AC14,
[ /Title
(CD74
AC14,
CD74
ACT14
)
/Subject
(Hex
Inverting
Schmit
t Trigger)
/Autho
r ()
/Keywords
(Harris
Semiconductor,
Advan
ced
CMOS
,Harris
Semiconductor,
Advan
ced
TTL)
Data sheet acquired from Harris Semiconductor
SCHS228
September 1998
Features
• Operates with Much Slower than Standard Input Rise
and Fall Slew Rates
• Exceptionally High Noise Immunity
• Exceeds 2kV ESD Protection MIL-STD-883, Method
3015
• SCR-Latchup-Resistant CMOS Process and Circuit
Design
• Speed of Bipolar FAST™/AS/S with Significantly
Reduced Power Consumption
• Balanced Propagation Delays
• AC Types Feature 1.5V to 5.5V Operation and
Balanced Noise Immunity at 30% of the Supply
• ±24mA Output Drive Current
- Fanout to 15 FAST™ ICs
- Drives 50Ω Transmission Lines
• Greater Noise Immunity Than Standard Inverters
Pinout
CD74AC14, CD74ACT14
(PDIP, SOIC)
TOP VIEW
1A
1Y
2A
2Y
3A
3Y
GND
1
2
3
4
5
6
7
14
V
CC
6A
13
12
6Y
11
5A
10
5y
9
4A
8
4Y
CD74ACT14
Hex Inverting Schmitt Trigger
Description
The CD74AC14 and CD74ACT14 each contain six in v erting
Schmitt Triggers in one package. These devices use the Harris
Advanced CMOS Logic technology.
Ordering Information
PART
NUMBER
CD74AC14 -55 to 125 14 Ld PDIP E14.3
CD74ACT14 -55 to 125 14 Ld PDIP E14.3
CD74AC14 -55 to 125 14 Ld SOIC M14.15
CD74ACT14 -55 to 125 14 Ld SOIC M14.15
NOTES:
1. When ordering,use the entire part number. Add the suffix 96 to
obtain the variant in the tape and reel.
2. Waf eranddie for this part number isavailablewhich meets all electrical specifications.Please contact your local sales office or Harris
customer service for ordering information.
Functional Diagram
1A
2A
3A
4A
5A
6A
INPUTS OUTPUTS
AY
LH
HL
TEMP.
RANGE (oC) PACKAGE
1
3
5
9
11
13
TRUTH TABLE
2
1Y
4
2Y
6
3Y
8
4Y
10
5Y
12
6Y
GND = 7
V
= 14
CC
PKG.
NO.
FIGURE 1. HYSTERESIS DEFINITION AND CHARACTERISTIC
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
FAST™ is a Trademark of Fairchild Semiconductor.
Copyright
© Harris Corporation 1998
1
File Number 1984.1
CD74AC14, CD74ACT14
Absolute Maximum Ratings Thermal Information
DC Supply Voltage, VCC. . . . . . . . . . . . . . . . . . . . . . . . -0.5V to 6V
DC Input Diode Current, I
IK
For VI < -0.5V or VI > VCC + 0.5V. . . . . . . . . . . . . . . . . . . . . .±20mA
DC Output Diode Current, I
OK
For VO < -0.5V or VO > VCC + 0.5V . . . . . . . . . . . . . . . . . . . .±50mA
DC Output Source or Sink Current per Output Pin, I
O
For VO > -0.5V or VO < VCC + 0.5V . . . . . . . . . . . . . . . . . . . .±50mA
DC VCC or Ground Current, I
CC orIGND
(Note 3) . . . . . . . . .±100mA
Operating Conditions
Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . -55oC to 125oC
Supply Voltage Range, VCC (Note 4)
AC Types. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.5V to 5.5V
ACT Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.5V to 5.5V
DC Input or Output Voltage, VI, VO . . . . . . . . . . . . . . . . . 0V to V
Input Rise and Fall Slew Rate, dt/dv (Note 6)
AC Types, 1.5V to 5.5V. . . . . . . . . . . . . . . . . . . . . . . 150ms (Max)
ACT Types, 4.5V to 5.5V. . . . . . . . . . . . . . . . . . . . . . . 20ns (Max)
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation
of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTES:
3. For up to 4 outputs per device, add ±25mA for each additional output.
4. Unless otherwise specified, all voltages are referenced to ground.
5. θJA is measured with the component mounted on an evaluation PC board in free air.
6. 5 Outputs switching: VCC = 5V; Load = 500Ω, 50pF; TA = Full Temperature Range
For AC, VI = 5.5V sawtooth; ACT, VI = 3V sawtooth.
Thermal Resistance (Typical, Note 5) θJA (oC/W)
PDIP Package. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
SOIC Package. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
Maximum Junction Temperature (Plastic Package) . . . . . . . . . . 150oC
Maximum Storage Temperature Range . . . . . . . . . .-65oC to 150oC
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . . 300oC
CC
DC Electrical Specifications
PARAMETER SYMBOL
AC TYPES
Positive-Going Threshold
Voltage
Negative-Going Threshold
Voltage
Hysteresis Voltage V
High Level Output Voltage V
TEST
CONDITIONS
(V) IO(mA) MIN MAX MIN MAX MIN MAX
I
V
+ - - 5 2.6 3.4 2.6 3.4 2.6 3.4 V
T
V
- - - 5 1.6 2.4 1.6 2.4 1.6 2.4 V
T
H
OH
- - 5 0.5 - 0.5 - 0.5 - V
VT+ or VT- -0.05 1.5 1.4 - 1.4 - 1.4 - V
V
CC
(V)
25
o
C
-40oC TO
85oC
-55oC TO
125oC
-0.05 3 2.9 - 2.9 - 2.9 - V
-0.05 4.5 4.4 - 4.4 - 4.4 - V
-4 3 2.58 - 2.48 - 2.4 - V
-24 4.5 3.94 - 3.8 - 3.7 - V
-75
5.5 - - 3.85 - - - V
(Note 7, 8)
-50
5.5----3.85 - V
(Note 7, 8)
UNITSV
2