查询CD54/74ACT20供应商
Data sheet acquired from Harris Semiconductor
SCHS229A
CD74AC20,
CD54/74ACT20
[ /Title
(CD74
AC20,
CD74
ACT20
)
/Subject
(Dual
4-Input
NAND
Gate)
/Autho
r ()
/Keywords
(Harris
Semiconductor,
Advan
ced
CMOS
,Harris
Semiconductor,
Advan
ced
TTL)
/Creator ()
September 1998 - Revised May 2000
Features
• Typical Propagation Delay
- 6ns at V
= 5V, TA = 25oC, CL = 50pF
CC
• 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
Pinout
CD54ACT20
(CERDIP)
CD74AC20, CD74ACT20
(PDIP, SOIC)
TOP VIEW
1A
1B
NC
1C
1D
1Y
GND
1
2
3
4
5
6
7
14
V
CC
2D
13
12
2C
11
NC
10
2B
9
2A
8
2Y
Dual 4-Input NAND Gate
Description
The CD74AC20 and ’ACT20 are dual 4-input NAND gates that
utilize Advanced CMOS Logic technology.
Ordering Information
PART
NUMBER
CD74AC20E -55 to 125 14 Ld PDIP
CD74AC20M -55 to 125 14 Ld SOIC
CD54ACT20F3A -55 to 125 14 Ld CERDIP
CD74ACT20E -55 to 125 14 Ld PDIP
CD74ACT20M -55 to 125 14 Ld SOIC
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 isavailablewhichmeets all electrical specifications. Please contactyour local TI sales officeor customer service for ordering information.
Functional Diagram
1
1A
2
1B
4
1C
5
1D
9
2A
10
2B
12
2C
13
2D
INPUTS OUTPUTS
nA nB nC nD nY
LXXX H
XLXX H
XXLX H
XXXL H
HHHH L
X = Don’t Care
TEMP.
RANGE (oC) PACKAGE
6
1Y
8
2Y
GND = 7
= 14
V
CC
NC = 3, 11
TRUTH TABLE
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
FAST™ is a Trademark of Fairchild Semiconductor.
Copyright
© 2000, Texas Instruments Incorporated
1
CD74AC20, CD54/74ACT20
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
AC Types, 1.5V to 3V . . . . . . . . . . . . . . . . . . . . . . . . . 50ns (Max)
AC Types, 3.6V to 5.5V. . . . . . . . . . . . . . . . . . . . . . . . 20ns (Max)
ACT Types, 4.5V to 5.5V. . . . . . . . . . . . . . . . . . . . . . . 10ns (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.
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
High Level Input Voltage V
Low Level Input Voltage V
High Level Output Voltage V
IH
IL
OH
TEST
CONDITIONS
(V) IO(mA) MIN MAX MIN MAX MIN MAX
I
V
CC
(V)
25
o
C
-40oC TO
85oC
-55oC TO
125oC
- - 1.5 1.2 - 1.2 - 1.2 - V
3 2.1 - 2.1 - 2.1 - V
5.5 3.85 - 3.85 - 3.85 - V
- - 1.5 - 0.3 - 0.3 - 0.3 V
3 - 0.9 - 0.9 - 0.9 V
5.5 - 1.65 - 1.65 - 1.65 V
VIH or V
-0.05 1.5 1.4 - 1.4 - 1.4 - V
IL
-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 6, 7)
-50
5.5----3.85 - V
(Note 6, 7)
UNITSV
2
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